Patent Publication Number: US-2023141279-A1

Title: Tower hoist, platform and davit system

Description:
BACKGROUND 
     Technical Field 
     The present application relates to platforms, hoists and davits for working on towers. The tower may be a cell phone or other telecommunication tower containing antennas or alternatively may be a structural column in a building. 
     Background of the Invention 
     There are different types of cell phone towers, including monopole, lattice, guyed, and camouflaged. For example, the monopole tower requires one foundation and height does not exceed about 200 feet. In this type, antennas are mounted on the exterior of the tower. Next, lattice towers are usually seen along the highways. They are three and four sided. Guyed towers are cheap to construct but cover large areas. Radio and TV stations use this type of cell phone tower. This tower uses guy wires connected to the ground to provide the support to the straight tower in the middle. It is about 300 feet or more in height. Finally, camouflaged towers are more expensive compared to other cell tower types. They are often required by zoning. 
     Unfortunately, due to the quick growth of cell phones and data demands, which necessitate that the towers be located near populated areas, working on cell phone towers has become very expensive (necessitating expensive lifts) and dangerous. In addition, tower maintenance can require Class IV rigging plans requiring engineering sign off, resulting in delays and expenses. 
     U.S. Pat. No. 10,464,788 describes a portable hoisting system having an upright pole for tower repair. However, among other things, the product is bulky, has a high center of gravity above the tower, and involves loading the pulley with the load line through the piping. 
     Thus, there is a need for improved systems to work on telecommunication towers. 
     BRIEF SUMMARY 
     In some embodiments, the present disclosure provides a hoist, platform and davit for towers such as telecommunications towers and columns in a building. In some embodiments, the method may include attaching a hoist to a monopole. In other embodiments, the hoist may attach to towers having multiple legs, such as guyed or self-support towers. In further embodiments, the hoist may have a mast that extends above the tower. 
     More particularly, in some embodiments, the present disclosure provides a method of securing a hoist to a tower pole comprising a tower pole top located above the ground, a tower pole bottom and a tower pole height extending from the tower pole top to the tower pole bottom may include assembling a hoist system by performing the following steps in any suitable order including simultaneously: securing a first clamp bracket system to the tower pole by placing the first clamp bracket system at least partially around the tower pole; and providing a hoist comprising a hoist beam comprising a forward end, a rear end, a hoist beam length extending from the forward end to the rear end. Optionally, at least after complete installation of the system (i.e., at least after all parts are installed if not prior to all parts being installed), the first clamp bracket system connects the hoist beam rear end to the tower pole; the hoist beam extends laterally from the tower pole and the first clamp bracket system; the hoist further comprises at least one sheave connected to the hoist beam and receiving a load line; and/or a brace cable connects the hoist beam to the tower pole and extends at an angle relative to the tower pole height and comprises an upper end connected to the tower pole and a lower end connected to the hoist beam. 
     Optionally, at least after complete installation of the system, the hoist beam comprises at least one load-end sheave and at least one return sheave, wherein the return sheave is located between the at least one load-end sheave and the hoist beam rear end. Optionally. a load line extends from below the hoist beam, at least partially around the at least one load-end sheave and at least partially around the at least one return sheave and then below the hoist beam. Optionally, the at least one load end sheave and return sheave are each configured to rotate about axes extending generally perpendicular to the hoist beam length. Optionally, the load line is connected to a load located below the hoist beam. Optionally, the load line is connected to a heel block and a winch, the heel block located below the hoist beam and connected to the tower pole, the winch located below the hoist beam, and further wherein the load line extends from the heel block upwards to the at least one return sheave. Optionally, the hoist beam comprises a plurality of load-end sheaves spaced about the hoist beam length. Optionally, the hoist beam comprises a top, a bottom, a hoist beam height extending from the top to the rear bottom, a hoist beam channel extending from the hoist beam top to hoist beam bottom, the hoist beam channel dividing the hoist beam into a hoist beam left side and hoist beam right side, and further wherein the least one load-end sheave, the at least one return sheave and at least a segment/section of the load line are located in the channel. Optionally, the hoist beam further comprises a termination bracket, the termination bracket having an upper end located in the hoist beam channel and a lower end extending downward from the hoist beam and comprising a hole. Optionally, a tie-off cable connected to a human is secured to the termination bracket. Optionally, the load line runs from below the hoist beam, up through the hoist beam channel between the at least one return sheave and the hoist beam rear end, at least partially around the at least one return sheave and the at least one load-end sheave, and back down through the hoist beam channel between the at least one load-end sheave and the forward end of the hoist beam, and further wherein, the load line runs down to a sheave connected to a load and back up to the termination bracket. Optionally, the hoist beam further comprises a plurality of rope guides located on the hoist beam bottom on each of the hoist beam left side and hoist beam right side between the at least one return sheave and the hoist beam rear end and adjacent to the hoist beam channel, the rope guides configured to protect the hoist beam and the load line from wear caused by the load line making contact with the hoist beam as a load is raised or lowered. Optionally, the tower pole comprises a portion of a telecommunications tower further comprising an antenna. Optionally, the tower pole is a structural column in a building comprising an interior, and optionally the first clamp bracket system faces the interior of the building. Optionally, the tower pole is a leg of the telecommunications tower. 
     Optionally, at least after complete installation of the system, the first clamp bracket system comprises a first clamp central bracket comprising a front side connected to the rear side of the hoist beam, a rear side facing the tower pole (and preferably engaging the tower pole) and opposite the front side, a left side and a right side and a u-shaped cable system extending partially around the tower pole and comprising a first end connected to the left side and a second end connected to the right side. Optionally, the u-shaped cable system is comprised of one or more chain tensioners and one or more chains, said one or more chain tensioners connected to the central bracket and the chains and chain tensioners engage the perimeter of the tower pole. Optionally, the u-shaped cable system is comprised of a left chain, a left chain tensioner, a flexible clamp cable, a right chain, and a right chain tensioner, the left chain tensioner having a forward end connected to the first clamp central bracket left side and a rear end connected to a forward end of the left chain, the left chain having a rear end connected to a left end of the flexible clamp cable, the flexible clamp cable having a right end connected to a rear end of the right chain, the right chain having a forward end connected to a rear end of the right chain tensioner, the right chain tensioner having a forward end connected to the right side of the first clamp central bracket. 
     Optionally, at least after complete installation of the system, the hoist beam is pivotally connected to the first clamp central bracket via at least two pivots such that the hoist beam can at least partially rotate around the tower pole in the plane perpendicular to the tower pole height and the hoist beam forward end can move relative to the hoist beam rear end between a raised position in which the hoist beam forward end is located higher than the hoist beam rear end and a lowered position in which the hoist beam forward end is located at the same height or lower than the hoist beam rear end. Optionally, the two pivots have perpendicular pivot axes so that the hoist beam may simultaneously move in two planes that are perpendicular to each other. Optionally, a horizontally-oriented pivot bolt pivotably connects the hoist beam to the first clamp central bracket, the horizontally-oriented pivot bolt configured to allow the hoist beam to rotate clockwise and/or counter-clockwise about a horizontally-oriented pivot bolt pivot axis extending generally perpendicular to the tower pole height, wherein rotation of the hoist beam about the horizontally-oriented pivot bolt pivot axis allows the hoist beam forward end to move upward and downward and toward and away from the tower pole top. Optionally, the horizontally-oriented pivot bolt rotates with the hoist beam about the horizontally-oriented pivot bolt pivot axis. Optionally, the horizontally-oriented pivot bolt does not rotate with the hoist beam about the horizontally-oriented pivot bolt pivot axis. Optionally, a lower vertically-oriented pivot bolt pivotably connects the hoist beam to the first clamp central bracket, the lower vertically-oriented pivot bolt located rearwardly relative to the horizontally-oriented pivot bolt, the lower vertically-oriented pivot bolt configured to allow the hoist beam to rotate clockwise and/or counter-clockwise about a lower vertically-oriented pivot bolt pivot axis extending generally parallel to the tower pole height, wherein rotation of the hoist beam about the lower vertically-oriented pivot bolt pivot axis allows the hoist beam to rotate at least partially around said tower pole in the plane perpendicular to the tower pole height. Optionally, the lower vertically-oriented pivot bolt rotates with the hoist beam about the lower vertically-oriented pivot bolt pivot axis. Optionally, the lower vertically-oriented pivot bolt does not rotate with the hoist beam about the lower vertically-oriented pivot bolt pivot axis. Optionally, the first clamp bracket system further comprises a brake, the brake, when engaged, configured to prevent rotation of the hoist beam clockwise and/or counter-clockwise about the lower vertically-oriented pivot bolt pivot axis. Optionally, the first clamp central bracket further comprises a movable bridge, the movable bridge comprising a forward section comprising the horizontally-oriented pivot bolt and a rear section comprising the lower vertically-oriented pivot bolt, the movable bridge configured to rotate around the lower vertically-oriented pivot bolt pivot axis with the hoist beam (to allow the hoist beam to move in the plane perpendicular to the pole height). Optionally, the movable bridge remains stationary while the hoist beam rotates about the horizontally-oriented pivot bolt pivot axis. Optionally, the first clamp central bracket further comprises an upper plate comprising an upper plate bolt hole and a lower plate comprising a lower plate bolt hole, wherein the movable bridge is positioned between the upper plate and the lower plate and further wherein the lower vertically-oriented pivot bolt extends vertically through the movable bridge and is positioned in and rotates in the upper plate bolt hole and lower plate bolt hole as the hoist beam rotates about the lower vertically-oriented pivot bolt pivot axis. Optionally, the first clamp bracket system further comprises a brake, the brake, when engaged, configured to releasably engage the movable bridge so to prevent the movable bridge (and hence the hoist beam) from rotating around the lower vertically-oriented pivot bolt pivot axis. 
     Optionally, the method further comprises securing a second clamp bracket system to the tower pole by placing the second bracket system at least partially around the tower pole. Optionally, at least after complete installation of the system, the second clamp bracket system is located above the first clamp bracket system and the second clamp bracket system comprises a second clamp central bracket comprising a front side connected to the upper end of the brace cable, a rear side facing the tower pole and opposite the front side, a left side and a right side. Optionally, the upper end of the brace cable is pivotally connected to the second clamp central bracket via at least one pivot such that the hoist beam can at least partially rotate around the tower pole in the plane perpendicular to the pole height. Optionally, an upper vertically-oriented pivot bolt pivotably connects the upper end of the brace cable to the second clamp central bracket, the upper vertically-oriented pivot bolt configured to allow the brace cable to rotate clockwise and/or counter clockwise about a upper vertically-oriented pivot bolt pivot axis extending generally parallel to the tower pole height, wherein rotation of the brace cable about the upper vertically-oriented pivot bolt pivot axis allows the hoist beam to rotate at least partially around the tower pole in the plane perpendicular to the pole height, and further wherein the brace cable rotates about the upper vertically-oriented pivot bolt axis in coordination with the hoist beam as the hoist beam rotates about the lower vertically-oriented pivot bolt axis. Optionally, the upper vertically-oriented pivot bolt rotates with the brace cable about the upper vertically-oriented pivot bolt pivot axis. Optionally, the upper vertically-oriented pivot bolt does not rotate with the brace cable about the upper vertically-oriented pivot bolt pivot axis. Optionally, the upper vertically-oriented pivot bolt is located directly above the lower vertically-oriented pivot bolt (such that the upper and lower vertically-oriented pivot bolt axes are aligned). Optionally, at least one vertical brace extends generally parallel to the tower pole height and connects the first clamp central bracket to the second clamp central bracket. Optionally, a pair of vertical braces spaced apart by a distance extend between the first and second clamp central brackets and connect the first clamp central bracket to the second clamp central bracket, wherein each vertical brace comprises an upper end and a lower end, and further wherein the distance between the vertical braces is less at the lower end of the vertical braces as compared to the upper end of the vertical braces to form a V-shape. Optionally, the brace cable comprises an upper chain, a turnbuckle, and a lower chain, the upper chain having an upper end connected to the upper vertically-oriented pivot bolt and a lower end connected to an upper end of the turnbuckle and further wherein the lower chain comprises an upper end connected to a lower end of the turnbuckle and a lower end connected to the hoist beam. Optionally, the hoist beam is configured to move into the raised position when the turnbuckle is shortened. Optionally, the first and second clamp brackets are vertically aligned. 
     Optionally, a plurality of adjustable (preferably threaded) jack bolts extend through a portion of at least one of the first clamp central bracket and the second clamp central bracket and engage a surface of the tower pole (preferably without extending into the tower pole), and said engagement is configured to prevent the first clamp central bracket and/or the second clamp central bracket from rotating or sliding relative to the tower pole. In other words, the connection is preferably not a mechanical interconnection of a bolt extending into a hole in the tower pole but instead part of a bolt engaging the surface of the tower pole creates sufficient friction to prevent rotation or sliding. Optionally, the adjustable jack bolts are oriented generally perpendicular to the tower pole height. Optionally, the adjustable jack bolts are spaced partially about a perimeter of the tower pole. Optionally, each adjustable jack bolt comprises a proximal end facing the tower pole and a distal end opposite the proximal end and further wherein adjustment of the jack bolt (e.g., turning the adjustable jack bolts clockwise and counter-clockwise) allows the jack bolt proximal end (and attached first and second clamp brackets) to move toward and away from the tower pole. Optionally, at least one of the first clamp central bracket and the second clamp central bracket comprises a plurality of jack brackets spaced partially about a perimeter of the tower pole, each jack bracket comprising a side facing the tower pole, each of the respective sides comprising a hole oriented generally perpendicular to the tower pole height, each of the respective holes comprising an adjustable (preferably threaded) jack bolt extending laterally through the respective hole perpendicular to the tower pole height, the adjustable jack bolt engaging the tower pole and preferably preventing the first and/or second central brackets from rotating or sliding relative to the tower pole (and preferably also allowing the hoist beam to rotate about the lower vertically-oriented pivot bolt axis in a true horizontal arc). Optionally, the tower pole is a monopole, said monopole being in the shape of a polygon comprising a plurality of tapered sides, each side wider at the bottom of the side as compared to the top, each adjustable jack bolt engaging (but preferably not extending into) a side and spaced partially about a perimeter of the monopole. Optionally, at least after complete installation of the system, the first clamp central bracket further comprises a removable insert. Optionally, said first clamp bracket system forms a complete loop about said pole. Optionally, a removable lug connects the hoist beam to the brace cable lower end. Optionally, the hoist beam is connected to a man basket configured to carry a human. 
     In still further embodiments, the present disclosure provides a method of securing a clamp bracket system to a monopole tower, the method comprising the steps of a) providing a monopole; and b) securing a clamp bracket system to the tower, where the clamp bracket system comprises a clamp central bracket comprising a front side, a rear side facing the tower pole (and preferably engaging the monopole) and opposite the front side, a left side and a right side and a u-shaped cable system extending partially around the tower pole and comprising a first end connected to the left side and a second end connected to the right side. Optionally, as previously described, the u-shaped cable system is comprised of one or more chain tensioners and one or more chains, said one or more chain tensioners connected to the central bracket and the chains and chain tensioners engage the perimeter of the monopole. Optionally, the u-shaped cable system is comprised of a left chain, a left chain tensioner, a flexible clamp cable, a right chain, and a right chain tensioner, the left chain tensioner having a forward end connected to the first clamp central bracket left side and a rear end connected to a forward end of the left chain, the left chain having a rear end connected to a left end of the flexible clamp cable, the flexible clamp cable having a right end connected to a rear end of the right chain, the right chain having a forward end connected to a rear end of the right chain tensioner, the right chain tensioner having a forward end connected to the right side of the first clamp central bracket. The clamp central bracket may be attached to a beam (as described above) or a mast as described below. In addition, the system may include one or more features described above. 
     In further embodiments, the present disclosure provides a method of securing a hoist to a tower pole comprising a tower pole top located above the ground, a tower pole bottom and a tower pole height extending from the tower pole top to the tower pole bottom, the method comprising assembling a hoist system by performing the following steps in any suitable order including simultaneously: securing a first clamp bracket system to the tower pole by placing the first clamp bracket system at least partially around the tower pole; securing a mast to the first clamp bracket system, the mast comprising a top, a bottom, and a height extending from the top to the bottom; providing a first mast bracket system; and providing a hoist comprising a hoist beam comprising a forward end, a rear end, a hoist beam length extending from the forward end to the rear end. Optionally, at least after complete installation of the system, the first clamp bracket system connects the mast to the tower pole; the first mast bracket is located above the first clamp bracket system and connects the hoist beam rear end to the mast and wraps at least partially around the mast; the hoist beam extends laterally from the mast and the first mast bracket system; the hoist further comprises at least one sheave connected to the hoist beam and receiving a pulley cable; a brace cable connects the hoist beam to the mast above the first mast bracket system and extends at an angle relative to the tower pole height and comprises an upper end connected to the mast and a lower end connected to the hoist beam; and/or the mast height is generally parallel to the tower pole height. 
     Optionally, a second mast bracket system connects the upper an x-shaped vertical brace extends between the first and second mast bracket systems end of the brace cable to the mast. Optionally, at least one bolt extends from the second mast bracket system into an interior of the mast, the at least one bolt configured to prevent rotation of the second mast bracket system relative to the mast. Optionally, the mast top (and the hoist beam rear end) is located above the tower pole top. Optionally, the mast comprises at least one bearing system configured to allow the mast to rotate relative to a mast central/longitudinal axis which runs generally parallel to the tower pole height. Optionally, the bearing system further comprises a brake, the brake, when engaged, configured to prevent the mast from rotating relative to the mast central/longitudinal axis. Optionally, the bearing system comprises a bearing bolt passing through the at least one bearing and is aligned with the mast central/longitudinal axis, wherein a nut is attached to the bearing bolt and forms said brake, and further wherein tightening of said nut is configured to prevent the mast from rotating relative to the mast central/longitudinal axis. 
     Optionally, the mast may comprise one or more of the following features (or any combination thereof): a cylindrical upper mast pipe comprising a top end, a bottom end, a upper mast pipe height extending from the top to the bottom, an interior, an interior surface, an inner diameter, an exterior surface, an exterior diameter, and a plurality of holes adjacent the top end configured to allow a bolt to be inserted through the upper mast pipe; a cylindrical lower mast pipe having a lower mast pipe top, a lower mast pipe bottom, a height extending from the lower mast pipe top to the lower mast pipe bottom, an interior, an interior surface, an inner diameter, an exterior surface, an exterior diameter, and a plurality of holes adjacent the top end configured to allow a rod to be inserted through the lower mast pipe; a circular stabilizer plate having an upper face, a lower face opposite the upper face, a center hole extending from the upper face through the lower face, a plurality of outer holes along a perimeter of the stabilizer plate, and a stabilizer plate diameter; a first bearing plate having a top comprising an upper face, a bottom comprising a lower face opposite the upper face, a center hole extending from the upper face through the lower face, an outer edge, and a first bearing plate diameter, wherein the first bearing plate diameter is substantially equal to the inner diameter of the upper mast pipe; a second bearing plate having a top comprising an upper face, a bottom comprising a lower face opposite the upper face, a center hole extending from the upper face through the lower face, an outer edge, and a second bearing plate diameter, wherein the second bearing plate diameter is substantially equal to the inner diameter of the upper mast pipe; a third bearing plate having a top comprising an upper face, a bottom comprising a lower face opposite the upper face, a center hole extending from the upper face through the lower face, an upper face edge, a lower face edge, an upper face diameter, a lower face diameter, wherein the upper face diameter is less than the upper mast pipe inner diameter and the lower face diameter is substantially equal to the lower mast pipe inner diameter, and further wherein the upper face diameter is greater than the lower face diameter so as to create a ledge/recess extending around the lower face edge; a fourth bearing plate having top comprising an upper face, a bottom comprising a lower face opposite the upper face, a center hole extending from the upper face through the lower face, an outer edge, and a fourth bearing plate diameter, wherein the fourth bearing plate diameter is substantially equal to the lower mast pipe inner diameter. Optionally, at least after complete installation of the system, the upper faces of the circular stabilizer plate and the first, second, third and four bearing plates face upwards and the lower faces of the of the circular stabilizer plate and the first, second, third and four bearing plates face downwards; the lower mast pipe top is located within the upper mast pipe interior and the lower mast pipe exterior surface does not contact the upper mast pipe interior surface; the stabilizer plate lower face contacts the upper mast pipe top; the first bearing plate is located below the stabilizer plate and within the upper mast pipe interior, the first bearing plate outer edge contacting the upper mast pipe interior surface, the first bearing plate upper face facing the stabilizer plate lower face; the second bearing plate is located below the first bearing plate and within the upper mast pipe interior, the second bearing plate outer edge contacting the upper mast pipe interior surface, the second bearing plate upper face facing the first bearing plate lower face; the fourth bearing plate is located below the third bearing plate and within the lower mast pipe interior, the fourth bearing plate outer edge contacting the lower mast pipe interior surface, the fourth bearing plate upper face facing the third bearing plate lower face; an top washer is positioned below the third bearing plate, the top washer comprising a center hole, an upper face confronting the third bearing plate lower face and a lower face; a bottom washer is positioned below the top washer and comprising a center hole, an upper face confronting the lower face of the top washer and a lower face confronting the upper face of the fourth bearing plate, wherein the bottom washer is rotatable relative to the top washer; a bearing bolt passes through the center holes of the first, second, third, and fourth bearing plates and the upper and the center holes of the upper and lower washer; at least one bolt passes through the plurality of holes in the top of the upper mast pipe and between the first and second bearing plates; wherein at least one rod passes through the plurality of holes in the top of the lower mast pipe and between the third and fourth bearing plates. Optionally, the system may include one or more features described 
     In still further embodiments, the present disclosure provides a method of securing a hoist to a tower comprising a left tower leg and a right tower leg, the left tower leg connected to the right tower leg by a plurality of tower braces, the tower, the left tower leg and the right tower leg each having a top located above the ground, a bottom and a height extending from the top to the bottom, the method comprising assembling a hoist system by performing the following steps in any suitable order including simultaneously: securing a lower right clamp bracket system to the right tower leg/pole by placing the lower right clamp bracket system at least partially around the right tower leg/pole; securing an upper right clamp bracket system to the right tower leg/pole by placing the upper right clamp bracket system at least partially around the right tower leg/pole; securing a lower left clamp bracket system to the left tower leg/pole by placing the lower left clamp bracket system at least partially around the left tower leg/pole; securing an upper left clamp bracket system to the left tower leg/pole by placing the upper left clamp bracket system at least partially around the left tower leg/pole; providing a hoist comprising a hoist beam comprising a forward end, a rear end, a hoist beam length extending from the hoist beam forward end to the hoist rear end; providing an upper cross beam and a lower cross beam. Optionally, at least after complete installation of the system, the lower left clamp bracket system is at substantially the same height as the lower right clamp bracket system; the lower cross beam extends between the lower left clamp bracket system and the lower right clamp bracket system and is oriented generally parallel to the ground and perpendicular to the left and right pole heights; the upper left clamp bracket system is at substantially the same height as the upper right clamp bracket system; the upper cross beam extends between the upper left clamp bracket system and the upper right clamp bracket system and is oriented generally parallel to the ground and perpendicular to the left and right pole heights; the upper cross beam, the upper left clamp bracket system and the upper right clamp bracket system are located above the lower cross beam, the lower left clamp bracket system and the lower right clamp bracket system; the hoist beam is connected to the lower cross beam and extends laterally from the lower cross beam; the hoist further comprises at least one sheave connected to the hoist beam and receiving a pulley cable (also referred to in the art as a load line); and/or a brace cable connects the hoist beam to the upper cross beam and extends at an angle relative to the left and right tower pole heights and comprises an upper end connected to the upper cross beam and a lower end connected to the hoist beam. 
     Optionally, the tower is in the form of a guyed or self-support tower and further comprises a rear pole located rearwardly relative to the left pole and right pole and connected to the left and right pole by a plurality of tower braces. Optionally, at least after complete installation of the system, a lower cross beam bracket is connected to the lower cross beam between the lower left clamp bracket system and the lower right clamp bracket system, wherein a horizontally-oriented pivot bolt connects the hoist beam to the lower cross beam bracket, the hoist beam configured to rotate clockwise and counter-clockwise about a horizontally-oriented pivot bolt pivot axis extending generally perpendicular to the tower pole height, wherein rotation of the hoist beam about the horizontally-oriented pivot bolt pivot axis allows the hoist beam forward end to move upward and downward and toward and away from the tower (to allow the hoist beam to move between the raised and lowered positions). Optionally, at least after complete installation of the system, a lower vertically-oriented pivot bolt connects the hoist beam to the lower cross beam bracket, the lower vertically-oriented pivot bolt located rearwardly relative to the horizontally-oriented pivot bolt and configured to allow the hoist beam to rotate clockwise and/or counter-clockwise about a lower vertically-oriented pivot bolt pivot axis extending generally parallel to the tower pole height. Optionally, rotation of the hoist beam about the lower vertically-oriented pivot bolt pivot axis allows the hoist beam to move toward and away from the lower cross beam (to allow the hoist beam to move in a plane perpendicular to the tower pole height). Optionally, the lower cross beam bracket further comprises a movable bridge, as described previously. Optionally, at least after complete installation of the system, an upper cross beam bracket is connected to the upper cross beam between the upper left clamp bracket system and the upper right clamp bracket system, the upper cross beam bracket located above the lower cross beam bracket, an upper vertically-oriented pivot bolt connects the upper end of the brace cable to the upper cross beam bracket, the brace cable configured to rotate (in a coordinated fashion with the hoist beam) clockwise and/or counter-clockwise about a upper vertically-oriented pivot bolt pivot axis extending generally parallel to the tower pole height, and rotation of the brace cable about the upper vertically-oriented pivot bolt pivot axis allows the hoist beam to move toward and away from the lower cross beam (to allow the hoist beam to move in the plane perpendicular to the tower pole height). Optionally, a lower vertically-oriented pivot bolt connects the hoist beam to the lower cross beam bracket, the lower vertically-oriented pivot bolt located rearwardly relative to the horizontally-oriented pivot bolt and configured to allow the hoist beam to rotate clockwise and/or counter-clockwise about a lower vertically-oriented pivot bolt pivot axis extending generally parallel to the tower pole height, and rotation of the hoist beam about the lower vertically-oriented pivot bolt pivot axis allows the hoist beam to move toward and away from the lower cross beam (to allow the hoist beam to move in a plane perpendicular to the tower pole height). Optionally, the lower cross beam bracket further comprises a movable bridge, as described previously. Optionally, an upper cross beam bracket is connected to the upper cross beam between the upper left clamp bracket system and the upper right clamp bracket system, the upper cross beam bracket located above the lower cross beam bracket, an upper vertically-oriented pivot bolt connects the upper end of the brace cable to the upper cross beam bracket, the brace cable configured to rotate (in a coordinated fashion with the hoist beam) clockwise and/or counter-clockwise about a upper vertically-oriented pivot bolt pivot axis extending generally parallel to the tower pole height, and rotation of the brace cable about the upper vertically-oriented pivot bolt pivot axis allows the hoist beam to move toward and away from the lower cross beam (to allow the hoist beam to move in the plane perpendicular to the tower pole height). Optionally, the system may include one or more features described above. 
     In still further embodiments, the present disclosure provides a method of securing a hoist to a tower comprising a left tower pole and a right tower pole, the left tower pole connected to the right tower pole by a plurality of tower braces, the tower, the left tower pole and the right tower pole each having a top located above the ground, a bottom and a height extending from the top to the bottom, the method comprising assembling a hoist system by performing the following steps in any suitable order including simultaneously: securing a lower right clamp bracket system to the right tower pole by placing the lower right clamp bracket system at least partially around the right tower pole; securing an upper right clamp bracket system to the right tower pole by placing the upper right clamp bracket system at least partially around the right tower pole; securing a lower left clamp bracket system to the left tower pole by placing the lower left clamp bracket system at least partially around the left tower pole; securing an upper left clamp bracket system to the left tower pole by placing the upper left clamp bracket system at least partially around the left tower pole; providing a hoist comprising a hoist beam comprising a forward end, a rear end, a hoist beam length extending from the hoist beam forward end to the hoist rear end; providing an upper cross beam and a lower cross beam; providing a mast. Optionally, at least after complete installation of the system, the lower left clamp bracket system is at substantially the same height as the lower right clamp bracket system; the lower cross beam extends between the lower left clamp bracket system and the lower right clamp bracket system and is oriented generally parallel to the ground (and perpendicular to the left and right pole heights); the upper left clamp bracket system is at substantially the same height as the upper right clamp bracket system; the upper cross beam extends between the upper left clamp bracket system and the upper right clamp bracket system and is oriented generally parallel to the ground (and perpendicular to the left and right pole heights); the upper cross beam, the upper left clamp bracket system and the upper right clamp bracket system are located above the lower cross beam, the lower left clamp bracket system and the lower right clamp bracket system; the mast is connected to the lower cross beam by a lower cross beam bracket located between the lower left clamp bracket system and the lower right clamp bracket, the mast is connected to the upper cross beam by an upper cross beam bracket located between the upper left clamp bracket system and the upper right clamp bracket system, and the mast comprises a mast height extending generally parallel to the tower pole height; the hoist beam is connected to the mast and extends laterally from the mast; the hoist further comprises at least one sheave connected to the hoist beam and receiving a pulley cable (also referred to in the art as a load line); and/or a brace cable connects the hoist beam to the mast and extends at an angle relative to the left and right tower pole heights and comprises an upper end connected to the mast and a lower end connected to the hoist beam. 
     Optionally, at least after complete installation of the system, first mast clamp bracket is located above the upper cross beam bracket and connects the hoist beam rear end to the mast and wraps at least partially around the mast. Optionally, the mast top (and hoist beam rear end) is located above the tower top. Optionally, the mast comprises at least one bearing as described previously. Optionally, the system may include one or more features described above. 
     In still further embodiments, the present disclosure provides a method of securing a hoist to a tower comprising securing a hoist comprising one or more components described herein to the tower. In other embodiments, the present disclosure provides a method of securing a hoist to a tower comprising securing a hoist comprising one or more components described herein to the tower. In another embodiment, the present disclosure provides a method of securing a clamp bracket system comprising one or more components described herein to the tower. In still further embodiments, the present disclosure provides a method of securing a hoist to a tower comprising a tower top, a tower bottom and a tower pole height extending from the top to the bottom, the method comprising: securing a davit comprising a sheave to the tower using a clamp bracket so that the davit comprises a davit height generally parallel to the tower pole height; and securing a mast to the tower using the clamp bracket. Optionally, at least after complete installation of the system, the mast is connected to a hoist comprising a hoist beam and the hoist beam extends downwardly along the mast (as opposed to laterally). Optionally, the hoist beam is connected to the mast as described above and/or illustrated in the figures. Optionally, the davit comprises an upper davit pole partially nested in an interior of a lower davit pole. Optionally, the davit sheave is adjacent to a top end of the davit. 
     In another embodiment, the tower may include a right tower leg/pole and a rear left tower leg/pole that are connected by a plurality of tower braces. Optionally, the rear right tower leg/pole may comprise a rear right tower leg/pole top, a rear right tower leg/pole bottom, a rear right tower leg/pole height extending from the rear right tower leg/pole top and rear right tower leg/pole bottom. Optionally, the rear left tower leg/pole may comprise a rear left tower leg/pole top, a rear left tower pole/leg bottom, a rear left tower/leg pole height extending from the rear left tower/leg pole top and rear left tower pole/leg bottom. Optionally, the first clamp bracket system may be connected to the rear left tower pole/leg by a lower left horizontal brace and/or connected to the rear right tower pole/leg by a lower right horizontal brace. Optionally, the lower left horizontal brace may be connected to the left rear tower pole/leg by a lower left horizontal brace clamp. Optionally, the lower right horizontal brace may be connected to the rear left tower pole/leg by a lower right horizontal brace clamp. Optionally, the second clamp bracket system may be connected to the rear left tower pole/leg by an upper left horizontal brace and/or connected to the rear right tower pole by an upper right horizontal brace. Optionally, the upper left horizontal brace may be connected to the rear tower pole by an upper left horizontal brace clamp. Optionally, the upper right horizontal brace may be connected to the rear right tower pole by an upper right horizontal brace clamp. 
     In still further embodiments, the present disclosure provides a method of securing a platform to a tower pole comprising a tower pole top located above the ground, a tower pole bottom and a tower pole height extending from the tower pole top to the tower pole bottom, the method comprising assembling a platform system by performing the following steps in any suitable order including simultaneously: securing a first clamp bracket system to the tower pole by placing the first clamp bracket system at least partially around the tower pole; and providing a platform comprising a platform beam comprising a forward end, a rear end, a platform beam length extending from the forward end to the rear end. Optionally, at least after complete installation of the system, the first clamp bracket system connects the platform beam rear end to the tower pole; the platform beam extends laterally from the tower pole and the first clamp bracket system; and/or a brace cable connects the platform beam to the tower pole and extends at an angle relative to the tower pole height and comprises an upper end connected to the tower pole and a lower end connected to the platform beam. 
     Optionally, the platform comprises a substantially solid floor, the substantially solid floor configured to allow a human to stand thereon. Optionally, the platform comprises a horizontal rail and a vertical rail. Optionally, the horizontal rail is located generally perpendicular to the tower pole height and the vertical rail is located generally parallel to the tower pole height. Optionally, the platform length is generally perpendicular to the tower pole height and the method further comprises walking on the platform. Optionally, the platform beam is located at a bottom of the platform. Optionally, the platform comprises two parallel platform beams the platform beam extending laterally from the tower pole and the first clamp bracket system and two parallel brace cables connect the two platform beams to the tower pole and extending at an angle relative to the tower pole height and comprising an upper end connected to the tower pole and a lower end connected to a platform beam. Optionally, the system may include one or more features described above. 
     In still further embodiments, the present disclosure provides a method of securing a platform to a tower comprising a left tower pole and a right tower pole, the left tower pole connected to the right tower pole by a plurality of tower braces, the tower, the left tower pole and the right tower pole each having a top located above the ground, a bottom and a height extending from the top to the bottom, the method comprising assembling a platform system by performing the following steps in any suitable order including simultaneously: securing a lower right clamp bracket system to the right tower pole by placing the lower right clamp bracket system at least partially around the right tower pole; securing an upper right clamp bracket system to the right tower pole by placing the upper right clamp bracket system at least partially around the right tower pole; securing a lower left clamp bracket system to the left tower pole by placing the lower left clamp bracket system at least partially around the left tower pole; securing an upper left clamp bracket system to the left tower pole by placing the upper left clamp bracket system at least partially around the left tower pole; providing a platform comprising a platform beam comprising a forward end, a rear end, a platform beam length extending from the platform beam forward end to the platform rear end; providing an upper cross beam and a lower cross beam. Optionally, at least after complete installation of the system, the lower left clamp bracket system is at substantially the same height as the lower right clamp bracket system; the lower cross beam extends between the lower left clamp bracket system and the lower right clamp bracket system and is oriented generally parallel to the ground and perpendicular to the left and right pole heights; the upper left clamp bracket system is at substantially the same height as the upper right clamp bracket system; the upper cross beam extends between the upper left clamp bracket system and the upper right clamp bracket system and is oriented generally parallel to the ground and perpendicular the left and right pole heights; the upper cross beam, the upper left clamp bracket system and the upper right clamp bracket system are located above the lower cross beam, the lower left clamp bracket system and the lower right clamp bracket system; the platform beam is connected to the lower cross beam and extends laterally from the lower cross beam; and/or a brace cable connects the platform beam to the upper cross beam and extends at an angle relative to the left and right tower pole heights and comprises an upper end connected to the upper cross beam and a lower end connected to the platform beam. Optionally, the system of paragraph may include one or more features described above. 
     In still another embodiment, the present disclosure provides a method of securing a hoist to a tower comprising a rectangular tower pole, the rectangular tower pole having a top located above the ground, a bottom and a height extending from the top to the bottom, the method comprising assembling a hoist system by performing the following steps in any suitable order including simultaneously: providing an upper forward cross beam, an upper rear cross beam, a lower forward cross beam, and a lower rear cross beam; securing the upper forward cross beam and the upper rear cross beam to the rectangular tower pole by having a upper left rod extend and an upper right rod extend between the upper forward cross beam and the upper rear cross beam, the upper left and upper right rods are configured to draw the upper forward cross beam toward the upper rear cross beam to compress the tower pole between the upper forward cross beam and the upper rear cross beam; securing the lower forward cross beam and the lower rear cross beam to the rectangular tower pole by having a lower left rod extend and a lower right rod extend between the lower forward cross beam and the lower rear cross beam, the lower left and lower right rods are configured to draw the lower forward cross beam toward the lower rear cross beam to compress the tower pole between the lower forward cross beam and the lower rear cross beam; providing a hoist comprising a hoist beam comprising a forward end, a rear end, a hoist beam length extending from the hoist beam forward end to the hoist rear end. Optionally at least after complete installation of the system, the upper rear cross beam and upper forward cross beam are at substantially the same height; the lower rear cross beam and lower forward cross beam are at substantially the same height; the upper rear cross beam and the upper forward cross beam are above the lower rear cross beam and lower forward cross beam; the upper forward cross beam and lower forward cross beams extended laterally out from the tower pole on at least one side; the upper rear cross beam, the upper forward cross beam, the lower rear cross beam, and lower forward cross beam are oriented substantially parallel to the ground and perpendicular to the tower pole; the hoist beam is connected to the lower forward cross beam on an end of the lower forward cross beam extending to the side of the tower pole, the hoist beam extending forward from the lower cross beam; the hoist further comprises at least one sheave connected to the hoist beam and receiving a load line; a brace cable connects the hoist beam to the upper forward cross beam on an end of the upper forward cross beam extending to the side of the tower pole, the brace cable extends at an angle relative to the left and right tower pole heights and comprises an upper end connected to the upper forward cross beam and a lower end connected to the hoist beam. 
     Optionally, at least after complete installation of the system, a lower cross beam bracket is connected to the lower cross beam to the outside of, as opposed to between, the left and right lower rods, wherein a horizontally-oriented pivot bolt connects the hoist beam to the lower cross beam bracket, the hoist beam configured to rotate clockwise and counter-clockwise about a horizontally-oriented pivot bolt pivot axis extending generally perpendicular to the tower pole height, and rotation of the hoist beam about the horizontally-oriented pivot bolt pivot axis allows the hoist beam forward end to move upward and downward and toward and away from the tower (to allow the hoist beam to move between a raised and lowered positions). Optionally, a lower vertically-oriented pivot bolt connects the hoist beam to the lower cross beam bracket, the lower vertically-oriented pivot bolt located rearwardly relative to the horizontally-oriented pivot bolt and configured to allow the hoist beam to rotate clockwise and/or counter-clockwise about a lower vertically-oriented pivot bolt pivot axis extending generally parallel to the tower pole height, wherein rotation of the hoist beam about the lower vertically-oriented pivot bolt pivot axis allows the hoist beam to move toward and away from the lower forward cross beam (to allow the hoist beam to move in a plane perpendicular to the tower pole height). Optionally, the lower cross beam bracket further comprises a movable bridge, as described previously. Optionally, an upper cross beam bracket is connected to the upper cross beam outside of, as opposed to between, the left and right upper rods, the upper cross beam bracket located above the lower cross beam bracket, an upper vertically-oriented pivot bolt connects the upper end of the brace cable to the upper cross beam bracket, the brace cable configured to rotate (in a coordinated fashion with the hoist beam) clockwise and/or counter-clockwise about a upper vertically-oriented pivot bolt pivot axis extending generally parallel to the tower pole height, and rotation of the brace cable about the upper vertically-oriented pivot bolt pivot axis allows the hoist beam to move toward and away from the lower cross beam (to allow the hoist beam to move in the plane perpendicular to the tower pole height). Optionally, the system may include one or more features described above. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG.  1   . illustrates a front top side perspective view of a hoist system of one embodiment of the present invention shown attached to a monopole. 
         FIG.  1 A  illustrates a closeup view of the circled area labelled  1 A in  FIG.  1   . 
         FIG.  1 B  illustrates a closeup view of the circled area labelled  1 B in  FIG.  1   . 
         FIG.  1 C  illustrates a front top side perspective view of the hoist system of  FIG.  1    with arrows showing how the hoist beam moves up and down (between the raised and lowered position) and laterally (i.e., in the plane perpendicular to the pole height). 
         FIG.  2    illustrates a front elevation view of the hoist system of  FIG.  1   . 
         FIG.  3    illustrates a top plan view of the hoist system of  FIG.  1   . 
         FIG.  4    illustrates a side elevation view of the hoist system of  FIG.  1    with the hoist beam in a lowered position. 
         FIG.  5    illustrates a side elevation view of the hoist system of  FIG.  1    with the hoist beam in a raised position. 
         FIG.  6    illustrates a front top side perspective view of a hoist system of a second embodiment of the present invention shown attached to a monopole. 
         FIG.  7    illustrates a side elevation view of the hoist system of  FIG.  6    with the hoist beam in a lowered position. 
         FIG.  8    illustrates a side elevation view of the hoist system of  FIG.  6    with the hoist beam in a raised position; in  FIG.  8   , not all components of the first clamp bracket system are shown. 
         FIG.  9    illustrates a front top side perspective view of a hoist system of a third embodiment of the present invention shown attached to the face of a guyed or self-support tower. 
         FIG.  9 A  illustrates a closeup view of the circled area labelled  9 A in  FIG.  9   . 
         FIG.  9 B  illustrates a closeup view of the circled area labelled  9 B in  FIG.  9   . 
         FIG.  10    illustrates a rear top side perspective view of the hoist system of  FIG.  9   . 
         FIG.  11 A  illustrates a front elevation view of the hoist system of  FIG.  9   . 
         FIG.  11 B  illustrates a top plan view of the hoist system of  FIG.  9   . 
         FIG.  12    illustrates a side elevation view of the hoist system of  FIG.  9    with the hoist beam in a lowered position. 
         FIG.  13    illustrates a side elevation view of the hoist system of  FIG.  9    with the hoist beam in a raised position. 
         FIG.  14    illustrates a front top side perspective view of a hoist system of a fourth embodiment of the present invention shown attached to the face of a guyed or self-support tower. 
         FIG.  15 A  illustrates a front elevation view of the hoist system of  FIG.  14   . 
         FIG.  15 B  illustrates a top plan view of the hoist system of  FIG.  14   . 
         FIG.  16    illustrates a side elevation view of the hoist system of  FIG.  14    with the hoist beam in a lowered position. 
         FIG.  17    illustrates a side elevation view of the hoist system of  FIG.  14    with the hoist beam in a raised position. 
         FIG.  18    illustrates a front top side perspective view of a hoist system of a fifth embodiment of the present invention shown attached to the leg of a guyed or self-support tower. 
         FIG.  19    illustrates a front elevation view of the hoist system of  FIG.  18   . 
         FIG.  20    illustrates a top plan view of the hoist system of  FIG.  18   . 
         FIG.  21    illustrates a side elevation view of the hoist system of  FIG.  18    with the hoist beam in a lowered position. 
         FIG.  22    illustrates a side elevation view of the hoist system of  FIG.  18    with the hoist beam in a raised position. 
         FIG.  23    illustrates a front top side perspective view of a hoist system of a sixth embodiment of the present invention shown attached to the leg of a guyed or self-support tower. 
         FIG.  24    illustrates a front elevation view of the hoist system of  FIG.  23   . 
         FIG.  25    illustrates a top plan view of the hoist system of  FIG.  23   . 
         FIG.  26    illustrates a side elevation view of the hoist system of  FIG.  23    with the hoist beam in a lowered position. 
         FIG.  27    illustrates a side elevation view of the hoist system of  FIG.  23    with the hoist beam in a raised position. 
         FIG.  28    illustrates a front top side perspective view of a top section of the mast shown in  FIG.  23   . 
         FIG.  29    illustrates an exploded front top side perspective view of the upper portion of the mast shown in  FIG.  28   . 
         FIG.  29 A  illustrates an exploded rear bottom side perspective view of the upper portion of the mast shown in  FIG.  28   . 
         FIG.  30    illustrates a top plan view of the mast upper portion shown in  FIG.  28   . 
         FIG.  31    illustrates a sectional view of the mast upper portion shown in  FIG.  28   . 
         FIG.  31 A  illustrates a top side perspective view of the mast upper portion shown in with  FIG.  28   ; in  FIG.  31 A , a portion of the upper mast pipe is removed to show the internal components. 
         FIG.  32    illustrates a side perspective view of a mast and a davit of one embodiment of the present invention attached to a monopole; the davit may be used to improve safety during installation and removal of the systems described herein. 
         FIG.  32 A  illustrates a closeup view of the circled area labelled  32 A in  FIG.  32   . 
         FIG.  33    illustrates a side perspective view of the davit of  FIG.  32   . 
         FIG.  34    illustrates a side elevation view of the davit of  FIG.  33   . 
         FIG.  35    illustrates a front top side perspective view of a hoist beam of another embodiment of the present invention. 
         FIG.  36    illustrates a front top side perspective view of a portion of the hoist beam of  FIG.  35   . 
         FIG.  37    illustrates a top plan view of the hoist beam of  FIG.  35   . 
         FIG.  38    illustrates a side elevation view of the hoist beam of  FIG.  35   . 
         FIG.  39    illustrates a bottom plan view of the hoist beam of  FIG.  35   . 
         FIG.  40    illustrates a front side perspective view of a platform of one embodiment of the present invention attached to a monopole. 
         FIG.  41    illustrates a side elevation view of a powered man basket used with a hoist system of one embodiment of the present invention. 
         FIG.  42    illustrates a side perspective view of a man basket connected with a trolley used with a hoist system of one embodiment of the present invention. 
         FIG.  43    illustrates a front, bottom, side perspective view of a man basket connected with a trolley used with a hoist system of one embodiment of the present invention. 
         FIG.  44    illustrates a side elevation view of a man basket connected with a trolley used with a hoist system of one embodiment of the present invention. 
         FIG.  45    illustrates a perspective view of two hoists of one embodiment of the present invention of the present invention shown attached to an interior face and an exterior face of a rectangular tower pole of a building. 
         FIG.  46    illustrates a front top side perspective view of a hoist system of one embodiment of the present invention shown attached to a rectangular tower pole of a building. 
         FIG.  47    illustrates a perspective view of two hoist systems of one embodiment of the present invention of the present invention attached to an interior face and an exterior face of a rectangular tower pole of a building. 
         FIG.  48    illustrates a front top side perspective view of a hoist system of another embodiment of the present invention shown attached to the face of a guyed or self-support tower. 
         FIG.  49    illustrates a front elevation view of the hoist system of  FIG.  48   . 
         FIG.  50    illustrates a front elevation view of a hoist system of another embodiment of the present invention shown attached to a monopole. 
         FIG.  51    illustrates a side elevation view of the hoist system of  FIG.  50    taken along line  51 - 51  of  FIG.  50   . 
         FIG.  52    illustrates a closeup view of the circled area labelled  52  in  FIG.  51   . 
         FIG.  53    illustrates a front top side perspective view of a hoist system of another embodiment of the present invention. 
         FIG.  54    illustrates a closeup view of the circled area labelled  54  in  FIG.  53   . 
         FIG.  55    illustrates a closeup view of the circled area labelled  55  in  FIG.  53   . 
         FIG.  56    illustrates a front top side view perspective view of the lower clamp bracket system and mast bottom of the hoist system of  FIG.  53     
         FIG.  57    illustrates a front top side view perspective view of a portion of the upper clamp bracket system of the hoist system of  FIG.  53   . 
         FIG.  58    illustrates an exploded front top side view perspective view of the portion of the upper clamp bracket system of  FIG.  57   . 
         FIG.  59    illustrates a front top side perspective view of a hoist system of another embodiment of the present invention shown attached to a monopole. 
         FIG.  60    illustrates a front top side perspective view of a hoist system of another embodiment of the present invention shown attached to a leg of a guyed or self-support tower. 
     
    
    
     DETAILED DESCRIPTION 
     With reference to  FIGS.  1 - 47   , the present disclosure provides hoists, platforms and davits that may be secured to a tower  10 , such as a telecommunications tower (e.g., a monopole, self-support tower or guyed tower) or a column of a building, preferably on a temporary basis, for example, to allow operators to maintain equipment and add to equipment on the tower  10 . In the drawings, not all reference numbers are included in each of the drawings for the sake of clarity.  FIGS.  1 - 47    are CAD drawings drawn to scale, however, it will be appreciated that other dimensions are possible. 
     More particularly, in one embodiment, the present disclosure describes a method of securing a hoist  30  to a tower pole  12  of a tower  10 . 
     The tower  10  may be comprised of a tower pole  12  having any desired shape or structure known or later developed. For example, as known to those of ordinary skill, the tower pole  12  may comprise a tower pole top  14  located above the ground, a tower pole bottom  16  which may be connected directly or indirectly to the ground, a tower pole height  18  extending from the tower pole top  14  to the tower pole bottom  16 , and a tower pole outer surface/outer wall/perimeter  20 . 
     The hoist  30  may be secured to the tower pole  12  by performing one or more steps in any suitable order including simultaneously. One step may comprise securing a first clamp bracket system to the tower pole  12  by placing the first clamp bracket system at least partially around the tower pole  12 . Another step may comprise providing a hoist  30  comprising a hoist beam  32 . Optionally, the hoist beam  82  comprises a forward end  34 , a rear end  36 , and a hoist beam length  38  extending from the forward end  34  to the rear end  36 . 
     At least after complete installation of the system (i.e., at least after all parts are installed if not prior to), the hoist  30  may have one or more of the features described below. For example, optionally, the first clamp bracket system connects the hoist beam rear end  36  to the tower pole  12 . Further, the hoist beam  32  may extend laterally from the tower pole  12  and the first clamp bracket system, as seen in  FIG.  1    for example. Optionally, as best seen in  FIG.  36   , the hoist  30  may comprise at least one sheave  40 ,  42  connected to the hoist beam  32  and receiving a pulley cable/load line  44 . Optionally, the hoist  30  may also comprise a brace cable  46  connecting the hoist beam  32  to the tower pole  12  and extending at an angle relative to the tower pole height  18 , as seen in  FIG.  1    for example. The brace cable  46  may further comprise an upper end  47 A connected to the tower pole  12  and a lower end  47 B connected to the hoist beam  32 , as seen in  FIG.  1    for example. 
     The hoist beam  32  may further comprise at least one load-end sheave  40  and at least one return sheave  42 , as best seen in  FIG.  36   . Preferably, the at least one load-end sheave  40  and at least one return sheave  42  are located between the hoist beam forward end  34  and hoist beam rear end  36 . Preferably, the at least one return sheave  42  is located between the at least one load-end sheave  40  and the hoist beam rear end  36 . The at least one load end sheave  40  and return sheave  42  are optionally configured to rotate about axes extending generally perpendicular to the hoist beam length  38 . Preferably, a load line  44  attached to a load (e.g., an antenna) runs upwards from below the hoist beam  32 , runs at least partially around at least one load-end sheave  40  and the at least one return sheave  42 , and then returns below the hoist beam  32 . 
     The load line  44  may be connected to a load located below the hoist beam  82 . Preferably, the end of the load line  44  running at least partially around the at least one load end sheave  40  is the end connected to load. In some embodiments, the other end of the load line  44  (i.e., the end running at least partially around the return sheave  42 ), may run through a heel block and connect to a winch (not shown). Optionally, the heel block is located below the hoist beam  32  and connected to the tower pole  12 . The load line  44  optionally runs upwards from the heel block to the at least one return sheave  42 . The segment/section of the load line  44  running between the heel block and the at least one return sheave  42  may optionally be oriented substantially parallel with the tower pole height  18 . 
     In some embodiments, the hoist beam  32  comprises a plurality of load-end sheaves  40  spaced about the hoist beam length  38 . Each load-end sheave  40  in the plurality of load-end sheaves  40  is capable of lifting loads at different distances from the tower pole  12  and has a different maximum weight capacity based on the location of the load-end sheave  40  along the hoist beam length  38 . An operator will be capable of selecting the correct load-end sheave  40  to use to lift a particular load based on the weight of the load and the distance from the tower pole  12  at which the load is before lifting and/or the distance at which the load will need to be after lifting. 
     In some embodiments, the hoist beam  32  may optionally comprise one or more of the following features. For example, as best seen in  FIGS.  35 - 37  and  39   , the hoist beam  32  may comprise a top  51 A, a bottom  51 B, a hoist beam height  52  extending from the top  51 A to the bottom  51 B, and/or a hoist beam channel  54  extending from the hoist beam top  51 A to hoist beam bottom  51 B. Optionally, the hoist beam channel  54  divides the hoist beam  32  into a hoist beam left side  55 A and hoist beam right side  55 B. Preferably, at least after complete installation of the hoist  80 , the least one load-end sheave  40 , the at least one return sheave  42 , and at least a section of the load line  44  are located in the hoist beam channel  54 , as best seen in  FIGS.  37  and  39   . Preferably, the hoist beam  32  is generally straight along the hoist beam length  38 . 
     In some embodiments, the hoist  30  may further comprise a termination bracket  56 , as best seen in  FIG.  36   . Optionally, the termination bracket  56  may have an upper end  57 A located in the hoist beam channel  54  and a lower end  57 B extending downward from the hoist beam  32 . Further, the termination bracket  56  may be generally rectangular in shape. Preferably, the lower end  57 B comprises a termination bracket hole  59 . Optionally, one end of a tie-off cable/rope/wire (not shown) is secured to the termination bracket  56  and a second end of the tie-off cable/rope/wire is secured to a human. 
     The load line  44  may be configured in one or more of the following ways. In some embodiments, the load line  44  may run from below the hoist beam  32 , up through the hoist beam channel  54  between the at least one return sheave  42  and the hoist beam rear end  36 , at least partially around the at least one return sheave  42  and the at least one load-end sheave  40 , and back down through the hoist beam channel  54  between the at least one load-end sheave  40  and the hoist beam forward end  34 . Optionally, the load line  44  may further run down to a load sheave (not shown) connected to a load (not shown), through the load sheave, and back up to the hoist beam  32 , as shown in  FIGS.  35 - 36    for example. In some cases, the end of the load line  44  running back up from the load sheave may be secured to the termination bracket  56 . This configuration may be referred to in the industry as 2-part line termination. Such a configuration may reduce the force that must be applied to a load line  44  to lift a load. Those having ordinary skill in the art will understand how to attach further sheaves to the load and hoist beam  32  to further reduce the force necessary to lift a load. 
     The load line  44  may be any rope, wire, or cable now known or later developed that is suitable for lifting. Preferably, the load line  44  is a fiber rope or a wire rope. 
     Optionally, the hoist beam  32  further comprises one or more of rope guides  62 , as best seen in  FIGS.  36  and  39   . The rope guides  62  may have one or more of the features described below. For example, the rope guides  62  may be located on the hoist beam bottom  51 B on either or both the hoist beam left side  55 A and hoist beam right side  55 B. Preferably, the rope guides  62  are adjacent to the hoist beam channel  54 . Optionally, the rope guides  62  are located along the hoist beam length  38  between the hoist beam rear end  36  and the at least one return sheave  42 . Preferably, the rope guides  62  are configured to prevent wear on the hoist beam  32  and load line  44  caused by the load line  44  making contact with the hoist beam  32  as a load is raised or lowered. Contact between the hoist beam  32  and load line  44  may occur, for example, if the heel block (not shown) is not directly below the hoist beam  32  or if the hoist beam  32  is rotated around the tower pole  12  horizontally in a plane substantially perpendicular to the tower pole height  18 . The ropes guides  62  may be configured to be sacrificial, i.e., designed to suffer the wear caused by contact with the load line  44  and be replaced once the wear reaches a particular level. 
     In some cases, the tower  10  may be a telecommunications tower. For example, the hoist  30  may be attached to cell phone towers including monopole, guyed, or self-support towers. In the case of a monopole tower or other similar tower, the tower pole  12  is the monopole. In the case of guyed, self-support, or similar towers, the tower pole  12  may be one or more of the tower legs. Optionally, the telecommunications tower may further comprise an antenna. In other embodiments, the tower pole may be a structural column in a building  64  comprising an interior  66 , in which case, optionally, the first clamp bracket system  70  faces the building interior  66  when the tower pole  12  is a structural column in a building  64 . 
     Further, at least after complete installation of the system, the first clamp bracket system  70  may have one or more of the following features. The first clamp bracket system  70  may comprise a first clamp central bracket  72 , best seen in  FIGS.  1 A and  1 B . Optionally, the first clamp central bracket  72  may comprise a front side  74  connected to the hoist beam rear end  36 , a rear side  76  facing the tower pole  12 , a left side  77 A, and a right side  77 B. Preferably, the first clamp central bracket rear side  76  engages the tower pole  12  and is opposite the front side  74 . 
     In some embodiments, as seen in  FIG.  1    and throughout the drawings, the first clamp bracket system  70  may comprise a u-shaped/circular cable system  78  extending partially around the tower pole  12 . The u-shaped/circular cable system  78  may comprise a first end  80  connected to the first bracket clamp left side  77 A and a second end  82  connected to the first bracket clamp right side  77 B. Optionally, the u-shaped/circular cable system  78  comprises one or more chain tensioners  88 ,  96  and one or more chains  84 ,  100  that engage the outer wall/outer surface/perimeter  20  of the tower  10  and fix the first clamp central bracket  72  to the tower pole  12  via tension. The chain tensioners  88 ,  96  may connect the one or more chains  84 ,  100  to the first clamp central bracket  72 . 
     For example, as shown in  FIG.  1    and throughout the drawings, the u-shaped cable system  78  may have one or more of the features described below. The u-shaped cable system  78  may have a left chain  84 , a left chain tensioner  88 , a flexible clamp cable  92 , a right chain  100 , and/or a right chain tensioner  96 . Optionally, the left chain tensioner  88  may have a forward end  90 A connected to the first clamp central bracket left side  77 A and/or a rear end  36 B connected to a left chain forward end  36 A. The left chain  84  may optionally have a rear end  36 B connected to a flexible clamp cable left end  94 B. Optionally, the flexible clamp cable  92  may have a right end  94 A connected to a right chain rear end  102 B, the right chain  100  may have a forward end  102 A connected to a right chain tensioner rear end  98 B, and the right chain tensioner  96  may have a forward end  98 A connected to the first clamp central bracket right side  77 B. Without being bound to any particular theory, the flexible cable  92  may prevent slippage and rotation of the hoist  30  on the tower pole  12  by increasing the friction and making greater contact with the tower pole surface  20  than a chain. At least after complete installation, the first clamp bracket system  70  may form a complete loop about said tower pole  12 . 
     In some embodiments, at least after complete installation of the system, the hoist beam  32  is pivotally connected to the first clamp central bracket  72  by at least two pivots such that the hoist beam  32  can at least partially rotate around the tower pole  12  in the plane perpendicular to the tower pole height  18  and/or the hoist beam forward end  34  can move relative to the hoist beam rear end  36  between a raised position (shown in  FIG.  5    for example) and a lowered position (shown in  FIG.  4    for example). In the raised position, the hoist beam forward end  34  is located higher than the hoist beam rear end  36 . In the lowered position, the hoist beam forward end  84  may be located at the same height or lower than the hoist beam rear end  36 . In some cases, the two pivots may have perpendicular pivot axes so that the hoist beam  82  may simultaneously move in two planes that are perpendicular to each other. 
     For example, at least after complete installation of the system, as best seen in  FIG.  1 B , a horizontally-oriented pivot bolt may pivotably connect the hoist beam  32  to the first clamp central bracket  72 . Optionally, the horizontally-oriented pivot bolt  104  may be configured to allow the hoist beam  32  to rotate clockwise and/or counter-clockwise about a horizontally-oriented pivot bolt pivot axis  105  extending generally perpendicular to the tower pole height  18 . Thus, the rotation of the hoist beam  32  about the horizontally-oriented pivot bolt pivot axis  105  may allow the hoist beam forward end  34  to move upward and downward and toward and away from the tower pole top  14 . In other words, the rotation of the hoist beam  32  about the horizontally-oriented pivot bolt pivot axis  105  may allow the hoist beam  32  to move between the raised and lowered positions. The horizontally-oriented pivot bolt  104  may or may not rotate with the hoist beam  32  about the horizontally-oriented pivot bolt pivot axis  105 . 
     As shown in  FIG.  1 B , a lower vertically-oriented pivot bolt  106  may also pivotably connect the hoist beam  32  to the first clamp central bracket  72 . Optionally, the lower vertically-oriented pivot bolt  106  may be configured to allow the hoist beam  82  to rotate clockwise and/or counter-clockwise about a lower vertically-oriented pivot bolt pivot axis  107  extending generally parallel to the tower pole height  18 . Thus, rotation of the hoist beam  32  about the lower vertically-oriented pivot bolt pivot axis  107  may allow the hoist beam  32  to rotate at least partially around said tower pole  12  in the plane perpendicular to the tower pole height  18 . Optionally, the lower vertically-oriented pivot bolt  106  may or may not rotate with the hoist beam  32  about the lower vertically-oriented pivot bolt pivot axis  107 . In some embodiments, the lower vertically-oriented pivot bolt  106  is located rearwardly relative to the horizontally-oriented pivot bolt  104 . 
     Further, the first clamp bracket system  70  may further comprise a brake  108  configured to prevent rotation of the hoist beam  32  clockwise and/or counter-clockwise about the lower vertically-oriented pivot bolt pivot axis  107  when the brake  108  is engaged. 
     As shown in  FIG.  1 B , the first clamp central bracket  72  may further comprise a movable bridge  110 . The movable bridge  110  may optionally comprise a forward section  112  comprising the horizontally-oriented pivot bolt  104  and a rear section  114  comprising the lower vertically-oriented pivot bolt  106 . The movable bridge  110  may be configured to rotate around the lower vertically-oriented pivot bolt pivot axis  107  with the hoist beam  32  to allow the hoist beam  32  to move in the plane perpendicular to the tower pole height  18 . Optionally, the movable bridge  110  may remain stationary while the hoist beam  32  rotates about the horizontally-oriented pivot bolt pivot axis  105 . 
     As shown in  FIG.  1 B , the first clamp central bracket  72  may further comprises an upper plate  116  comprising an upper plate bolt hole (not shown) and a lower plate  118  comprising a lower plate bolt hole  119 . Optionally, the movable bridge  110  may be positioned between the upper plate  116  and the lower plate  118  on the first clamp central bracket  72 . Further, the lower vertically-oriented pivot bolt  116  may extend vertically through the movable bridge  110  and/or may be positioned in and rotate in the upper plate bolt hole and lower plate bolt hole  119  as the hoist beam  82  rotates about the lower vertically-oriented pivot bolt pivot axis  119 . The first clamp central bracket brake  108  may optionally be configured to prevent rotation of the movable bridge  110  and/or the hoist beam  32  from rotating around the lower vertically oriented pivot bolt axis  107 . 
     Optionally, as shown in  FIG.  1   , the hoist  30  may be also secured to the tower pole  12  by a second clamp bracket system  120  that is placed at least partially around the tower pole  12  above the first clamp bracket system  72 . At least after complete installation of the system, the second clamp bracket system  120  may comprise one or more of the features described below and shown in  FIG.  1 A . The second clamp bracket system  120  may be located above the first clamp bracket system  70 . The second clamp bracket system  120  may comprise a second clamp central bracket  122  comprising a front side  124  connected to the brace cable upper end  47 A, a rear side  126  facing the tower pole  12  and opposite the front side  124 , a left side  128 , and/or a right side  180 . Preferably, the second clamp bracket rear side  126  comprises a v-shaped recess  127  engaging the tower pole surface  20 . More particularly, the tower pole  12  may be a polygon and the v-shaped recess  127  may be shaped to engage two sides of the polygon and provide vertical stability. For example, in a non-limiting example, the tower pole  12  has sixteen sides and, as best seen in  FIG.  9 A , the v-shaped recess  127  has an angle  129  (which preferably points toward the front side  124 ) of approximately 22.5 degrees to match the angle of the sides of the tower pole  12 . Further, the brace cable upper end  47 A may optionally be pivotally connected to the second clamp central bracket  122  via at least one pivot such that the hoist beam  32  can at least partially rotate around the tower pole  12  in the plane perpendicular to the pole height  1   
     As shown in  FIG.  1 A , an upper vertically-oriented pivot bolt  182  may pivotably connect the brace cable upper end  47 A to the second clamp central bracket  122 . Preferably, the upper vertically-oriented pivot bolt  182  is configured to allow the brace cable  46  to rotate clockwise and/or counter-clockwise about an upper vertically-oriented pivot bolt pivot axis  134  extending generally parallel to the tower pole height  18 . In such configuration, rotation of the brace cable  46  about the upper vertically-oriented pivot bolt pivot axis  134  may allow the hoist beam  32  to rotate at least partially around the tower pole  12  in the plane perpendicular to the pole height  18 . Preferably, the brace cable  46  rotates about the upper vertically-oriented pivot bolt axis  134  in coordination with the hoist beam  32  as the hoist beam  32  rotates about the lower vertically-oriented pivot bolt axis  107 . 
     Optionally, the upper vertically-oriented pivot bolt  182  may or may not rotate with the brace cable  46  about the upper vertically-oriented pivot bolt pivot axis  184 . The upper vertically-oriented pivot bolt  182  may optionally be located directly above the lower vertically-oriented pivot bolt  106  such that the upper and lower vertically-oriented pivot bolt axes  107 ,  184  are vertically aligned. 
     As shown in  FIG.  1 A , the second clamp central bracket  122  may further comprises an upper plate  116  comprising an upper plate bolt hole (not shown) and a lower plate  118  comprising a lower plate bolt hole  119 . Optionally, the upper vertically-oriented pivot bolt  182  may be positioned in and rotate in the upper plate bolt hole and lower plate bolt hole  119  as the hoist beam  32  rotates about the upper vertically-oriented pivot bolt pivot axis  182 . 
     As seen in  FIG.  1    and throughout, at least one vertical brace  186  may extend generally parallel to the tower pole height  18  and connect the first clamp central bracket  72  to the second clamp central bracket  122 . Preferably, a pair of vertical braces  186  spaced apart by a distance  142  extending between the first and second clamp central brackets  72 ,  122  and connect the first and second clamp central bracket  72 ,  122 . Preferably, each vertical brace  186  comprises an upper end  188  and a lower end  140 , and the distance  142  between the vertical braces is less at the vertical brace lower ends  140  as compared to the vertical brace upper ends  188  to form a V-shape, as seen in  FIG.  1    for example. Preferably, the first and second clamp central brackets  72 ,  122  are vertically aligned. Without being bound to any particular theory, the vertical brace  186  may help to increase stability and improve structural integrity. Preferably, the vertical braces  136  may be used for all configuration without a mast  200 . 
     As shown in  FIG.  1    and throughout the drawings, the brace cable  46  may comprise an upper chain  144 , a turnbuckle  152 , and/or a lower chain  148 . Optionally, the upper chain  144  may have an upper end  146 A connected to the upper vertically-oriented pivot bolt  182  and a lower end  146 B connected to an turnbuckle upper end  154 A. Optionally, the lower chain  148  may comprise an upper end  150 A connected to a turnbuckle lower end  154 B and a lower end  150 B connected to the hoist beam  32 . The turnbuckle  152  may be configured to change the orientation of the hoist beam  32 . For example, the turnbuckle  152  may be configured to move the hoist beam  32  into the raised position when the turnbuckle is shortened  152 A and the lowered position when the turnbuckle is lengthened  152 B. Optionally, a removable bolt/lug  156  connects the hoist beam  32  to the brace cable lower end  47 B. 
     Optionally, the upper and lower brace cable chains  144 ,  148  may be replaced by a cable, wire, or other suitable component. Similarly, the turnbuckle  152  may optionally be replaced with a ratchet or other suitable mechanism for shortening or elongating the brace cable  46 . 
     In some embodiments, the hoist  30  may comprise a plurality of jack bolts  160  extend through a portion of the first clamp central bracket  72  and/or the second clamp central bracket  122  and engage the tower pole surface  20 . Optionally, the plurality of jack bolts  160  may be located on a top  168 ,  172  of the first and/or second clamp central brackets  72 ,  122 , a bottom  170 ,  174  the first and/or second clamp central brackets  72 ,  122 , or both the top  168 ,  172  and bottom  170 ,  174  of the first and/or second clamp central brackets  72 ,  122 . Preferably, the plurality of jack bolts  160  are threaded and do not extend into the tower pole  12 . Without being bound to any particular theory, said engagement between the jack bolt  160  and the tower pole outer surface/outer wall  20  may be configured to allow for optimal spacing, alignment, and orientation of the first and/or the second clamp central bracket  72 ,  122 , especially if the tower pole is tapered. Tapered poles may prevent the clamps from having the correct vertical and horizontal orientation otherwise. Optionally, he connection between the plurality of jack bolts  160  and the tower pole  12  is not a mechanical interconnection of a bolt extending into a hole in the tower pole  12  but rather a part of each jack bolt  160  engages the tower pole outer surface/outer wall  20 . 
     More particularly, the jack bolts  160  may be structured such that each jack bolt  160  comprises a proximal end  162  facing and engaging the tower pole outer surface/outer wall  20  and a distal end  164  opposite the proximal end  162 , and a length (not shown) extending from the jack bolt  160  proximal end to the distal end  164 . Preferably, the jack bolts  160  are oriented such that the jack bolt length extends generally perpendicular to the tower pole height  18 . The jack bolts  160  may be optionally spaced partially about a perimeter of a tower pole  12 . Optionally, the jack bolts  160  are adjustable such that adjustment of the jack bolt  160 , for example, turning the jack bolts  160  clockwise and/or counter-clockwise, allows the jack bolt proximal end  162  to move toward and away from the tower pole  12 . The jack bolts  160  may also be configured, for example, such that adjustment of the jack bolts  160  moves the first and/or second clamp brackets  72 ,  122  toward or away from the tower pole outer surface/outer wall  20 . Optionally, the jack bolt proximal end  162  may stay engaged with the tower pole outer surface/outer wall  20  as the jack bolt  160  is adjusted. Different methods of adjustment, for example, a ratcheting system, are also possible and will be apparent to those skilled in the art. 
     In some embodiments, the first and second clamp central brackets  72 ,  122  may comprise a plurality of jack brackets  176  spaced partially about a perimeter of the tower pole  12 . Optionally, each jack bracket  176  further comprises a side facing the tower pole  12  with each of the respective sides facing the tower pole outer surface/outer wall  20  comprising a hole (not shown without jack bolt extending through it) oriented generally perpendicular to the tower pole height  18 . Each of the respective holes may further comprise an adjustable, preferably threaded, jack bolt  160  extending laterally through the respective hole perpendicular to the tower pole height  18 . As above, the adjustable jack bolt  160  may engage the outer surface/outer wall  20  and preferably prevent the first and/or second central brackets  72 ,  122  from rotating or sliding relative to the tower pole  12  while also preferably allowing for the hoist beam  32  to rotate about the lower vertically-oriented pivot bolt axis  107  in a true horizontal arc. Optionally, the jack brackets  176  are in the shape of a wedge or are L-shaped. 
     In some cases, the tower pole  12  is a monopole. The monopole may be in the shape of a polygon comprising a plurality of flat tapered sides  21 . Optionally, each side  21  is be wider at the tower pole bottom  16  as compared to the tower pole top  14 . Optionally, each jack bolt  160  may engage, but preferably not extend into, a side  21  and may be spaced partially about a perimeter of the monopole. 
     Several other optional configurations are possible for the hoist  30  as described below. For example, at least after complete installation, the first and/or second clamp central bracket  72 ,  122  may further comprise a removable insert  180 . The removable insert  180  may be interchangeable and come in several configurations depending on the configuration of the hoist  30  and the requirements of a particular job. In one such configuration, the removable insert  180  may comprise the upper and lower plates  116 ,  118  to which the movable bridge  110  is discussed as above. In another configuration, the removable insert  180  is configured to secure a mast  200  to the first and/or second clamp bracket systems  72 ,  122 . Other configurations are discussed below. 
     In some cases, a man basket  182  configured to carry a human may be secured to the hoist beam  32 , as shown in  FIGS.  41  and  42   . The man basket  182  may also be attached to a trolley  184  secured to the hoist beam  32 . The trolley  184  may be configured to allow the man basket  182  to move along at least a portion of the length  88  of the hoist beam  32 . Optionally, a basket hoist  186 , such as a chain fall hoist, connects the man basket  182  to the hoist beam  32  or trolley  184  secured to the hoist beam  32  to allow the man basket  182  to be raised and/or lowered during use. In other cases, the man basket  182  may be attached to a man basket cable  188  that runs up through the hoist beam  32  and secures to the tower pole  12 . Optionally, the man basket cable  188  may be secured to the tower pole  12  above the first and/or second central clamp brackets  72 ,  122 . A powered lift may be used to allow the man basket  182  to ascend and descend the man basket cable  188 . 
     In some embodiments, as best seen in  FIGS.  43 - 44   , the man basket  182  may comprise a forward cross bracket  540  and a rear cross bracket  542 . Optionally, the forward cross bracket  540  attaches to the trolley  184  at the trolley forward end  185 A. Optionally, the rear cross bracket  542  attaches to the trolley  184  at the trolley rear end  185 B. The man basket  182  may be secured to the forward cross bracket  540  and rear cross bracket  542  by a plurality of man basket chains  548 . The man basket chains  543  may attach to a forward cross bracket left end  544 , and forward cross bracket right end  545 , a rear cross bracket left end  546 , and/or a rear cross bracket right end  547 . Optionally, the man basket  182  may further comprise a substantially solid floor  550  which may be configured to allow a human to stand thereon. Optionally, the plane formed by the man basket floor  550  is perpendicular to the tower pole height  18 . In some cases, the man basket  182  may comprise a horizontal rail  552  and a vertical rail  554 . Optionally, the man basket horizontal rail  552  is located generally perpendicular to the tower pole height  18  and/or the man basket vertical rail  554  is located generally parallel to the tower pole height  18 . 
     As shown in  FIGS.  6 - 8   , a mast  200  may be used, if, for example, the operator desires to work on antennas near the tower top. More particularly, as shown in  FIGS.  6 - 8   , one step may comprise securing a first clamp bracket system  70  to the tower pole  12  by placing the first clamp bracket system  70  at least partially around the tower pole  12 . Another step may comprise securing a mast  200  to the first clamp bracket system  70 , the mast  200  comprising a top  202 , a bottom  204 , and a height  206  extending from the top  202  to the bottom  204 . Another step may comprise providing a first mast bracket system  210 . Another step may comprise providing a hoist  30  comprising a hoist beam  32  comprising a forward end  84 , a rear end  36 , and a hoist beam length  38  extending from the forward end  34  to the rear end  36 . 
     Optionally, the hoist  30  may have one or more of the following features: i) the first and/or second clamp bracket system  72 ,  122  connects the mast  200  to the tower pole  12 ; ii) the first mast bracket system  212  is located above the first and/or second clamp bracket system  72 ,  122  and connects the hoist beam rear end  36  to the mast  200  and wraps at least partially around the mast  200 ; iii) the hoist beam  32  extends laterally from the mast  200  and the first mast bracket system  210 ; iv) the hoist further comprises at least one sheave  40 , 42  connected to the hoist beam  32  and receiving a pulley cable/load line  44 ; v) a brace cable  46  connects the hoist beam  32  to the mast  200  above the second clamp bracket system  120  and extends at an angle relative to the tower pole height  18  and comprises an upper end  47 A connected to the mast  200  and a lower end  47 A connected to the hoist beam  32 ; and/or vi) the mast height  206  is generally parallel to the tower pole height  18 . At least after complete installation of the system, the mast top  202  and the hoist beam  32  and/or hoist beam rear end  36  is located above the tower pole top  14 . 
     As shown in  FIGS.  6 - 8   , the hoist  30  may comprise a second mast bracket system  212  that may connect the brace cable upper end  47 A to the mast  200 . Optionally, the first and second mast bracket systems  210 ,  212  may be aligned with the second mast bracket system  212  directly above the first mast bracket system  210 . In some case, as best seen in  FIG.  28   , an x-shaped vertical brace  214  may extend between the first and second mast bracket systems  210 ,  212  to stabilize and maintain alignment of the first and second mast bracket systems  210 ,  212 . At least one bolt  216  may extend from the second mast bracket system  212  into an interior  238 ,  258  of the mast  200 . The at least one bolt  216  may be configured to prevent rotation or other movement of the second mast bracket system  212  around the mast  200 . 
     Optionally, as best seen in  FIGS.  28 - 31 A , the mast  200  comprises at least one bearing system  220  configured to allow the mast  200  to rotate relative to a mast central/longitudinal axis  222  which runs generally parallel to the tower pole height  18 . Optionally, the bearing system  220  further comprises a brake  224 , configured to, when engaged, prevent the mast  200  from rotating relative to the mast central/longitudinal axis  222 . Preferably, the bearing system  220  comprises a bearing bolt  226  passing through the at least one bearing  220  and is aligned with the mast central/longitudinal axis  222 , a nut  228  is attached to the bearing bolt  226  and forms said brake  224 , and tightening of said nut  228  is configured to prevent the mast  200  from rotating relative to the mast central/longitudinal axis  222 . 
     Optionally, as best seen in  FIG.  31   , the mast  200  is comprised of an upper mast pipe  280  and a lower mast pipe  250 . 
     Optionally, as best seen in  FIGS.  28 - 31 A , at least after complete installation of the system, the hoist  30  may have one or more of the features described below: a) a cylindrical upper mast pipe  230  comprising a top  232 , a bottom  284 , a upper mast pipe height  286  extending from the top  282  to the bottom  284 , an interior  238 , an interior surface  240 , an inner diameter  242 , an exterior surface  244 , an exterior diameter  246  and/or a plurality of holes  248  optionally adjacent the top  282  configured to allow a bolt  216  to be inserted through the upper mast pipe  230 ; b) a cylindrical lower mast pipe  250  having a lower mast pipe top  252 , a lower mast pipe bottom  254 , a height  256  extending from the lower mast pipe top  252  to the lower mast pipe bottom  254 , an interior  258 , an interior surface  260 , an inner diameter  262 , an exterior surface  264 , an exterior diameter  266 , and/or a plurality of holes  268  optionally adjacent the top  252  configured to allow a rod  218  to be inserted through the lower mast pipe  250 ; c) a circular stabilizer plate  270  having an upper face  272 , a lower face  274  opposite the upper face  272 , a center hole  276  extending from the upper face  272  through the lower face  274 , a plurality of outer holes  278  extending from the upper face  272  through the lower face  274  adjacent to the stabilizer plate perimeter, and/or a stabilizer plate diameter  279 ; d) a first bearing plate  280  having a top  282  comprising an upper face  284 , a bottom  286  comprising a lower face  288  opposite the upper face  284 , a center hole  290  extending from the upper face  284  through the lower face  288 , an outer edge  292  and/or a first bearing plate diameter  294 , wherein, optionally, the first bearing plate diameter  294  is substantially equal to the upper mast pipe inner diameter  242 ; e) a second bearing plate  800  having a top  802  comprising an upper face  804 , a bottom  806  comprising a lower face  808  opposite the upper face  804 , a center hole  310  extending from the upper face  804  through the lower face  808 , an outer edge  812 , and a second bearing plate diameter  814 , wherein, optionally the second bearing plate diameter  814  is substantially equal to the upper mast pipe inner diameter  242 ; f) a third bearing plate  820  having a top  822  comprising an upper face  824 , a bottom  826  comprising a lower face  828  opposite the upper face  824 , a center hole  880  extending from the upper face  824  through the lower face  828 , an upper face edge  832 , a lower face edge  834 , an upper face diameter  386 , a lower face diameter  888 , wherein the upper face diameter  836  is less than the upper mast pipe inner diameter  242  and the lower face diameter  338  is substantially equal to the lower mast pipe inner diameter  262 , and further wherein the upper face diameter  386  is greater than the lower face diameter  888  so as to create a ledge/recess  839  extending around the lower face edge  884 ; and/or g) a fourth bearing plate  840  having top  342  comprising an upper face  844 , a bottom  846  comprising a lower face  848  opposite the upper face  844 , a center hole (not shown without bolt  226  extending through it) extending from the upper face  844  through the lower face  348 , an outer edge  852 , and a fourth bearing plate diameter  854 , wherein the fourth bearing plate diameter  854  is substantially equal to the lower mast pipe inner diameter  262 . 
     Optionally, as best seen in  FIGS.  28 - 31 A , at least after complete installation of the system, the hoist  30  may have one or more of the features described below: i) the circular stabilizer plate, first bearing plate, second bearing plate, third bearing plate, and/or fourth bearing plate upper faces  272 ,  284 ,  804 ,  824 ,  844  face upwards and the circular stabilizer plate, first bearing plate, second bearing plate, third bearing plate, and/or fourth bearing plate upper faces  274 ,  288 ,  808 ,  828 ,  848  face downwards; ii) the lower mast pipe top  252  is located within the upper mast pipe interior  238  and/or the lower mast pipe exterior surface  264  does not contact the upper mast pipe interior surface  240 ; iii) the stabilizer plate lower face  274  contacts the upper mast pipe top  232 ; iv) the first bearing plate  280  is located below the stabilizer plate  270  and/or within the upper mast pipe interior  238 , the first bearing plate outer edge  292  contacts the upper mast pipe interior surface  240 , and/or the first bearing plate upper face  284  faces the stabilizer plate lower face  274 ; v) the second bearing plate  800  is located below the first bearing plate  280  and within the upper mast pipe interior, the second bearing plate outer edge contacts the upper mast pipe interior surface  238 , and/or the second bearing plate upper face  804  faces the first bearing plate lower face  824 ; vi) the third bearing plate  820  is located below the second bearing plate  800 , the third bearing plate upper face  824  is located within the upper mast pipe interior  238 , the third bearing plate lower face  828  is located within the lower mast pipe interior  258 , the third bearing plate upper face edge  832  does not contact the upper mast pipe interior surface  240 , the third bearing plate ledge/recess  839  contacts the lower mast pipe top  252 , the third bearing plate lower face edge  8384  contacts the lower mast pipe interior surface  260 , and/or the third bearing plate upper face  824  faces the second bearing plate lower face  808 ; vii) the fourth bearing plate  840  is located below the third bearing plate  820  and/or within the lower mast pipe interior  258 , the fourth bearing plate outer edge  852  contacts the lower mast pipe interior surface  260 , and/or the fourth bearing plate upper face  844  faces the third bearing plate lower face  828 ; viii) a top washer  860  is positioned below the third bearing plate  820 , the top washer  860  comprising a center hole  862 , a lower face  328 , and/or an upper face (not shown), wherein the top washer upper face  866  optionally confronts the third bearing plate lower face  828 ; and/or ix) a bottom washer  870  is positioned below the top washer  360  and comprising a center hole  872 , an upper face (not shown) optionally confronting the top washer lower face and/or a lower face  876  confronting the fourth bearing plate upper face  844 , wherein the bottom washer  870  is optionally rotatable relative to the top washer  860 . 
     Optionally, the upper mast pipe  280  further comprises a lower bearing system  247 . The lower bearing system  247  may be located on the upper mast pipe bottom  284 . The lower bearing system  247  may comprise rollers  249  that prevent the upper mast pipe interior surface  240  from contacting the lower mast pipe exterior surface  264 . 
     Without being bound to any particular theory, the configuration of the stabilizer plate  270  and the first, second, third, and fourth bearing plates  280 ,  300 ,  820 ,  840  may increase the stability of the upper mast pipe  230  with respect to the lower mast pipe  250  when the hoist  30  is under load. Further, the bearing system  220  may help reduce the force necessary to rotate the upper mast pipe  230  with respect to the lower mast pipe  250 . Additionally, the plurality of holes  278  in stabilizer plate  270  may allow a user to, among other things, correct or change the orientation of the upper mast pipe with respect to the lower mast pipe if, for example, the upper mast pipe rotates under load. 
     In addition, the system may include one or more features described previously. 
     In another embodiment, as shown for example in  FIGS.  9 - 13   , the hoist  80  may be secured to a tower  10  comprising a left tower leg/pole  22  and a right tower leg/pole  24 , the left tower leg/pole  22  connected to the right tower leg/pole  24  by a plurality of tower braces  28 , the left tower leg/pole  22  and the right tower leg/pole  24  each having a top  14 A,  14 B located above the ground, a bottom  16 A,  16 B that may be connected directly or indirectly to the ground, and a height  18 A,  18 B extending from the top  14 A,  14 B to the bottom  16 A,  16 B. The method further comprising assembling a hoist  30  by performing the one or more of following steps in any suitable order including simultaneously: a) securing a lower right clamp bracket system  380  to the right tower leg/pole  24  by placing the lower right clamp bracket system  380  at least partially around the right tower leg/pole  24 ; b) securing an upper right clamp bracket system  382  to the right tower leg/pole  24  by placing the upper right clamp bracket system  382  at least partially around the right tower leg/pole  24 ; c) securing a lower left clamp bracket system  384  to the left tower leg/pole  22  by placing the lower left clamp bracket system  384  at least partially around the left tower leg/pole  22 ; d) securing an upper left clamp bracket system  386  to the left tower leg/pole  22  by placing the upper left clamp bracket system  386  at least partially around the left tower leg/pole  22 ; e) providing a hoist  30  comprising a hoist beam  32  comprising a forward end  34 , a rear end  36 , and a hoist beam length  38  extending from the hoist beam forward end  34  to the hoist rear end  36 ; and/or f) providing an upper cross beam  388  and/or a lower cross beam  389 . 
     Optionally, as shown in  FIGS.  9 - 13   , the hoist  30  may have one or more of the features described below: i) the lower left clamp bracket system  384  is at substantially the same height as the lower right clamp bracket system  380 ; ii) the lower cross beam  389  extends between the lower left clamp bracket system  384  and the lower right clamp bracket system  380  and is oriented generally parallel to the ground and perpendicular to the left and right tower pole heights  18 A,  18 B; iii) the upper left clamp bracket system  386  is at substantially the same height as the upper right clamp bracket system  382 ; iv) the upper cross beam  388  extends between the upper left clamp bracket system  386  and the upper right clamp bracket system  382  and is oriented generally parallel to the ground and perpendicular to the left and right pole heights  18 A,  18 B; v) the upper cross beam  388 , the upper left clamp bracket system  386  and/or the upper right clamp bracket system  382  are located above the lower cross beam  389 , the lower left clamp bracket system  384  and/or the lower right clamp bracket system  380 ; vi) the hoist beam  32  is connected to the lower cross beam  389  and/or extends laterally from the lower cross beam  389 ; vii) the hoist  30  further comprises at least one sheave  40 ,  42  connected to the hoist beam  32  and receiving a load line  44 ; and/or viii) a brace cable  46  connects the hoist beam  32  to the upper cross beam  388  and extends at an angle relative to the left and right tower pole heights  18 A,  18 B and comprises an upper end  47 A connected to the upper cross beam  388  and/or a lower end  47 B connected to the hoist beam  32 . In some cases, the tower  10  used in this method is a guyed or self-support tower. The tower  10  of this method may further comprise a rear leg/pole  26  located rearwardly relative to the left tower leg/pole  22  and right tower leg/pole  24  and connected to the left and right tower leg/poles  22 ,  24  by a plurality of tower braces  28 . 
     Optionally, as shown in  FIGS.  9 - 13   , the hoist  30  may further comprise a lower cross beam bracket  390  connected to the lower cross beam  389  between the lower left clamp bracket  384  and the lower right clamp bracket  380 , a horizontally-oriented pivot bolt  104  connecting the hoist beam  32  to the lower cross beam bracket  390 , and/or a hoist beam  32  configured to rotate clockwise and/or counter-clockwise about a horizontally-oriented pivot bolt pivot axis  105  extending generally perpendicular to the tower pole height  18 . In such configuration, the rotation of the hoist beam  32  about the horizontally-oriented pivot bolt pivot axis  105  may allow the hoist beam forward end  34  to move upward and downward and toward and away from the tower pole  12  to allow the hoist beam  32  to move between the raised and lowered positions. 
     Optionally, as shown in  FIGS.  9 - 13   , the hoist  30  may further comprise a lower vertically-oriented pivot bolt  106  connecting the hoist beam  32  to the lower cross beam bracket  390 . The lower vertically-oriented pivot bolt  106  may be located rearwardly relative to the horizontally-oriented pivot bolt  104  and/or configured to allow the hoist beam  32  to rotate clockwise and/or counter-clockwise about a lower vertically-oriented pivot bolt pivot axis  107  extending generally parallel to the tower pole height  18 . Rotation of the hoist beam  32  about the lower vertically-oriented pivot bolt pivot axis  107  may allow the hoist beam  32  to move toward and away from the lower cross beam  389 , i.e., to allow the hoist beam  32  to move in a plane perpendicular to the tower pole height  18 . 
     The lower cross beam bracket  390  may further comprise a movable bridge  110 , as described previously and shown in  FIG.  9 B . 
     Optionally, as shown in  FIGS.  9 - 13   , an upper cross beam bracket  392  may be connected to the upper cross beam  388  between the upper left clamp bracket system  386  and the upper right clamp bracket system  382 . The upper cross beam bracket  392  may be located above the lower cross beam bracket  390 . An upper vertically-oriented pivot bolt  182  may connect the brace cable upper end  47 A to the upper cross beam bracket  392 . Optionally, the brace cable  46  is configured to rotate, in a coordinated fashion with the hoist beam  32 , clockwise and/or counter-clockwise about an upper vertically-oriented pivot bolt pivot axis  134  extending generally parallel to the tower pole height  18 . Rotation of the brace cable  46  about the upper vertically-oriented pivot bolt pivot axis  134  may allow the hoist beam  32  to move toward and away from the lower cross beam  389  to allow the hoist beam  32  to move in the plane perpendicular to the tower pole height  18 . 
     In addition, the system may optionally comprise include one or more features described previously. 
     In another embodiment, as shown for example in  FIGS.  14 - 17   , the hoist  80  may be secured to a tower  10  using a mast  200 . As shown in  FIGS.  14 - 17   , the tower  10  may include a left tower leg/pole  22  and a right tower leg/pole  24 , the left tower leg/pole  22  connected to the right tower leg/pole  24  by a plurality of tower braces  28 , the left tower leg/pole  22  and the right tower leg/pole  24  each having a top  14 A,  14 B located above the ground, a bottom  16 A,  16 B that may be connected directly or indirectly to the ground, and a height  18 A,  18 B extending from the top  14 A,  14 B to the bottom  16 A,  16 B. The method further comprising assembling a hoist system  80  by performing the one or more of following steps in any suitable order including simultaneously: a) securing a lower right clamp bracket system  380  to the right tower leg/pole  24  by placing the lower right clamp bracket system  380  at least partially around the right tower leg/pole  24 ; b) securing an upper right clamp bracket system  382  to the right tower leg/pole  24  by placing the upper right clamp bracket system  382  at least partially around the right tower leg/pole  24 ; c) securing a lower left clamp bracket system  384  to the left tower leg/pole  22  by placing the lower left clamp bracket system  384  at least partially around the left tower leg/pole  22 ; d) securing an upper left clamp bracket system  386  to the left tower leg/pole  22  by placing the upper left clamp bracket system  386  at least partially around the left tower leg/pole  22 ; e) providing a hoist comprising a hoist beam  32  comprising a forward end  34 , a rear end  36 , a hoist beam length  38  extending from the hoist beam forward end  34  to the hoist rear end  36 ; f) providing an upper cross beam  388  and a lower cross beam  389 ; and g) providing a mast  200 . 
     Optionally, as shown for example in  FIGS.  14 - 17   , the hoist  30  may have one or more of the following features: i) the lower left clamp bracket system  384  is at substantially the same height as the lower right clamp bracket system  380 ; ii) the lower cross beam  389  extends between the lower left clamp bracket system  384  and the lower right clamp bracket system  380  and/or is oriented generally parallel to the ground and perpendicular to the left and right pole heights  18 A, 18 B; iii) the upper left clamp bracket system  386  is at substantially the same height as the upper right clamp bracket system  382 ; iv) the upper cross beam  388  extends between the upper left clamp bracket system  386  and the upper right clamp bracket system  382  and/or is oriented generally parallel to the ground and perpendicular to the left and right pole heights  18 A, 18 B; v) the upper cross beam  388 , the upper left clamp bracket system  386  and/or the upper right clamp bracket system  382  are located above the lower cross beam  389 , the lower left clamp bracket system  384  and/or the lower right clamp bracket system  380 ; vi) the mast  200  is connected to the lower cross beam  389  by a lower cross beam bracket  390  located between the lower left clamp bracket system  384  and the lower right clamp bracket system  380 , the mast  200  is connected to the upper cross beam  388  by an upper cross beam bracket  392  located between the upper left clamp bracket system  386  and the upper right clamp bracket  382 , and/or the mast  200  comprises a mast height  206  extending generally parallel to the tower pole height  18 ; vii) the hoist beam  32  is connected to the mast  200  and extends laterally from the mast  200 ; viii) the hoist  30  further comprises at least one sheave  40 ,  42  connected to the hoist beam  32  and receiving a pulley cable/load line  44 ; ix) brace cable  46  connects the hoist beam  32  to the mast  200  and extends at an angle relative to the left and right tower pole heights  18 A,  18 B and comprises an brace cable upper end  47 A connected to the mast  200  and/or a brace cable lower end  47 B connected to the hoist beam  32 . 
     Optionally, as shown for example in  FIGS.  14 - 17   , first mast clamp bracket  210  may be located above the upper cross beam bracket  392  and connect the hoist beam rear end  36  to the mast  200  and wraps at least partially around the mast  200 . Further, the mast top  202  and/or hoist beam rear end  36  may be located above the tower pole top  12 . In addition, the mast  200  may also comprise at least one bearing system  220  as previously described. 
     In addition, the system may optionally comprise include one or more features described previously. 
     In other embodiments, a hoist  30  comprising one or more components as described herein may be secured to a tower pole  12 , and/or a clamp bracket system  70  comprising one or more components described herein may be secured to the tower pole  12 . 
     In still further embodiments, as shown in  FIGS.  18 - 27   , the tower  10  may include a right tower leg/pole  500  and a rear left tower leg/pole  510  that are connected by a plurality of tower braces  28 . The rear right tower leg/pole  510  may comprise a rear right tower leg/pole top  502 , a rear right tower leg/pole bottom  504 , a rear right tower leg/pole height  506  extending from the rear right tower leg/pole top  502  and rear right tower leg/pole bottom  504 . The rear left tower leg/pole  510  may comprise a rear left tower leg/pole top  512 , a rear left tower pole/leg bottom  514 , a rear left tower/leg pole height  516  extending from the rear left tower/leg pole top  512  and rear left tower pole/leg bottom  514 . Optionally, the first clamp bracket system  70  may be connected to the rear left tower pole/leg  502  by a lower left horizontal brace  520  and/or connected to the rear right tower pole/leg  510  by a lower right horizontal brace  580 . The lower left horizontal brace  520  may be connected to the left rear tower pole/leg  502  by a lower left horizontal brace clamp  524 . The lower right horizontal brace  522  may be connected to the rear left tower pole/leg  510  by a lower right horizontal brace clamp  526 . Optionally, the second clamp bracket system  120  may be connected to the rear left tower pole/leg  510  by an upper left horizontal brace  580  and/or connected to the rear right tower pole  500  by an upper right horizontal brace  532 . The upper left horizontal brace  580  may be connected to the rear tower pole  510  by an upper left horizontal brace clamp  584 . The upper right horizontal brace  582  may be connected to the rear right tower pole  500  by an upper right horizontal brace clamp  586 . 
     In addition, the system may optionally comprise include one or more features described previously. 
     In a further embodiment, as shown in  FIGS.  33 - 34   , the hoist may be secured to a tower pole  12  using a davit  293 . More particularly, the method may involve providing a tower pole  12  comprising a tower pole top  14 , a tower pole bottom  16  and a tower pole height  18  extending from the top  14  to the bottom  16 . The hoist  80  may be secured to the tower pole  12  by performing one or more steps in any suitable order including simultaneously: a) securing a davit  898  comprising a davit sheave  394 , a davit top  395 A, a davit bottom  395 B, a davit height  397  extending from the top  395 A to the bottom  395 B, wherein the davit  398  is optionally secured to the tower  12 , for example, by a clamp bracket system  70 , 120 , so that the davit  398  comprises a davit height  397  generally parallel to the tower pole height  18  and/or b) securing a mast  200  to the tower  12  using the clamp bracket system  70 , 120 . At least after complete installation of the system, the mast  200  may connect to a hoist  30  comprising a hoist beam  32  and the hoist beam  32  may extend downward along the mast  200  (as opposed to laterally). Optionally, the hoist beam  32  is connected to the mast  200  as described above. Additionally, the davit  898  of this method may optionally comprise an upper davit pole  398  partially nested in an interior of a lower davit pole  399 . Optionally, the davit sheave  394  may be adjacent to the davit top  395 A and/or located on a davit flange  396 . 
     In addition, the system may optionally comprise include one or more features described previously. 
     In a further embodiment, as shown in  FIG.  40   , a platform  400  may be secured a tower pole  12  comprising a tower pole top  14  located above the ground, a tower pole bottom  16  and a tower pole height  18  extending from the tower pole top  14  to the tower pole bottom  16 . Optionally, the platform  400  may be secured to the tower pole  12  by performing one or more of the following steps in any suitable order including simultaneously: a) securing a first clamp bracket system  70  to the tower pole  12  by placing the first clamp bracket system  70  at least partially around the tower pole  12 ; and/or b) providing a platform  400  comprising a platform beam  402  comprising a forward end  404 , a rear end  406 , a platform beam length  408  extending from the forward end  404  to the rear end  406 . 
     Optionally, as shown in  FIG.  40   , the platform  400  may comprise one or more of the following features: i) the first clamp bracket system  70  connects the platform beam rear end  406  to the tower pole  12 ; ii) the platform beam  402  extends laterally from the tower pole  12  and the first clamp bracket system  70 ; and/or iii) a brace cable  46  connects the platform beam  402  to the tower pole  12  and extends at an angle relative to the tower pole height  18  and/or comprises an upper end  47 A connected to the tower pole  12  and a lower end  47 B connected to the platform beam  402 . Optionally, the platform  400  may further comprise a substantially solid floor  410  which may be configured to allow a human to stand thereon. In some cases, the platform  400  may comprise a horizontal rail  412  and a vertical rail  414 . Optionally, the horizontal rail  412  is located generally perpendicular to the tower pole height  18  and/or the vertical rail  414  is located generally parallel to the tower pole height  18 . Optionally, the platform beam length  408  is generally perpendicular to the tower pole height  18 , and the method may further comprise walking on the platform  400 . The platform beam  402  may be located on a bottom of the platform  400 . 
     Optionally, as shown in  FIG.  40   , the platform  400  may comprise two parallel platform beams  402 . The platform beams  402  may optionally extend laterally from the tower pole  12 . Optionally, the first clamp bracket system  70  and two parallel brace cables  46  connect the two platform beams  402  to the tower pole  12  and extend at an angle relative to the tower pole height  18 . Further, the two parallel brace cables  46  further comprise an upper end  47 A connected to the tower pole  12  and a lower end  47 B connected to a platform beam  402 . 
     In addition, the system may optionally comprise include one or more features described previously. 
     The platform  400  also may be secured to a tower  10  (e.g., guyed or self-support tower) comprising a left tower leg/pole  22  and a right tower leg/pole  24 , the left tower leg/pole  22  connected to the right tower leg/pole  24  by a plurality of tower braces  28 , the left tower leg/pole  22  and the right tower leg/pole  24  each having a top  14 A,  14 B located above the ground, a bottom  16 A,  16 B that may be connected directly or indirectly to the ground, and a height  18 A,  18 B extending from the top  14 A,  14 B to the bottom  16 A,  16 B. Optionally, the platform  400  may be secured to the tower  10  by system by performing one or more of the following steps in any suitable order including simultaneously: a) securing a lower right clamp bracket system  380  to the right tower pole  24  by placing the lower right clamp bracket system  380  at least partially around the right tower leg/pole  24 ; b) securing an upper right clamp bracket system  382  to the right tower leg/pole  24  by placing the upper right clamp bracket system  382  at least partially around the right tower pole  24 ; c) securing a lower left clamp bracket system  384  to the left tower leg/pole  22  by placing the lower left clamp bracket system  384  at least partially around the left tower leg/pole  22 ; d) securing an upper left clamp bracket system  386  to the left tower pole  22  by placing the upper left clamp bracket system  386  at least partially around the left tower leg/pole  22 ; e) providing a platform  400  comprising a platform beam  402  comprising a forward end  404 , a rear end  406 , a platform beam length  408  extending from the platform beam forward end  404  to the platform rear end  406 ; and/or f) providing an upper cross beam  388  and a lower cross beam  389 . 
     In addition, the system may optionally comprise include one or more features described previously. 
     Optionally, i) the lower left clamp bracket system  384  may be at substantially the same height as the lower right clamp bracket system  380 ; ii) the lower cross beam  389  may extend between the lower left clamp bracket system  384  and the lower right clamp bracket system  380  and may be oriented generally parallel to the ground and perpendicular to the left and right pole heights  18 A, 18 B; iii) the upper left clamp bracket system  386  is at substantially the same height as the upper right clamp bracket system  382 ; iv) the upper cross beam  388  may extend between the upper left clamp bracket system  386  and the upper right clamp bracket system  382  and/or may be oriented generally parallel to the ground and perpendicular the left and right pole heights  18 A, 18 B; v) the upper cross beam  388 , the upper left clamp bracket system  386  and/or the upper right clamp bracket system  382  may be located above the lower cross beam  389 , the lower left clamp bracket system  384  and/or the lower right clamp bracket system  380 ; vi) the platform beam  402  may be connected to the lower cross beam  389  and/or may extend laterally from the lower cross beam  389 ; and/or vii) a brace cable  46  may connect the platform beam  402  to the upper cross beam  388 , extends at an angle relative to the left and right tower pole heights  18 A, 18 B and/or comprises an upper end  47 A connected to the upper cross beam  388  and a lower end  47 B connected to the platform beam  402 . 
     In a further embodiment, as best seen in  FIGS.  45 - 46    a hoist  30  may be secured to a tower  10  comprising a rectangular tower pole  12 . The rectangular tower pole  12  may have a top  14  located above the ground, a bottom  16 , and a height  18  extending from the top to the bottom. Optionally, the hoist  30  may be secured to the tower pole  12  by performing the following steps in any suitable order including simultaneously: a) providing an upper forward cross beam  420 , an upper rear cross beam  422 , a lower forward cross beam  424 , and a lower rear cross beam  426 ; b) securing the upper forward cross beam  420  and the upper rear cross beam  422  to the rectangular tower pole  12  by having an upper left rod  430  and an upper right rod  432  extend between the upper forward cross beam  420  and the upper rear cross beam  422 , wherein the upper left and upper right rods  430 , 482  are optionally configured to draw the upper forward cross beam  420  toward the upper rear cross beam  422  to compress the tower pole  12  between the upper forward cross beam  420  and the upper rear cross beam  422 ; c) securing the lower forward cross beam  424  and the lower rear cross beam  426  to the rectangular tower pole  12  by having a lower left rod  434  and a lower right rod  436  extend between the lower forward cross beam  424  and the lower rear cross beam  426 , wherein the lower left and lower right rods  434 , 436  are optionally configured to draw the lower forward cross beam  424  toward the lower rear cross beam  426  to compress the tower pole  12  between the lower forward cross beam  424  and the lower rear cross beam  426 ; and/or d) providing a hoist  30  comprising a hoist beam  32  comprising a forward end  34 , a rear end  36 , a hoist beam length  38  extending from the hoist beam forward end  34  to the hoist rear end  36 . 
     Optionally, as best seen in  FIG.  46   , i) the upper rear cross beam  422  and upper forward cross beam  420  are at substantially the same height; ii) the lower rear cross beam  426  and lower forward cross beam  424  are at substantially the same height; iii) the upper rear cross beam  422  and/or the upper forward cross beam  420  are above the lower rear cross beam  426  and/or lower forward cross beam  424 ; iv) the upper forward cross beam  420  and lower forward cross beam  424  extended laterally out from the tower pole  12  on at least one side; v) the upper rear cross beam  422 , the upper forward cross beam  420 , the lower rear cross beam  426 , and/or lower forward cross beam  424  are oriented substantially parallel to the ground and perpendicular to the tower pole  12 ; vi) the hoist beam  32  is connected to the lower forward cross beam  424  on an end of the lower forward cross beam  424  extending to the side of the tower pole  12 , wherein the hoist beam  32  optionally extends forward from the lower cross beam  389 ; vii) the hoist beam  32  comprises at least one sheave connected to the hoist beam  32  and configured to receive a pulley cable/load line  44 ; and/or viii) a brace cable  46  connects the hoist beam  32  to the upper forward cross beam  420  on an end of the upper forward cross beam  420  extending to the side of the tower pole  12 , wherein the brace cable  46  optionally extends at an angle relative to the left and right tower pole heights  18 A, 18 B and comprises an upper end  47 A connected to the upper forward cross beam  420  and a lower end  47 B connected to the hoist beam  32 . 
     Optionally, similar to the embodiments previously described, a lower cross beam bracket  438  may be connected to the lower cross beam  389  on the outside of, as opposed to between, the left and right lower rods  434 , 436 . Further, a horizontally-oriented pivot bolt  104  may optionally connect the hoist beam  32  to the lower cross beam bracket  438 . The hoist beam  32  may be configured to rotate clockwise and/or counter-clockwise about a horizontally-oriented pivot bolt pivot axis  105  extending generally perpendicular to the tower pole height  18 . Optionally, a horizontally-oriented pivot bolt  104  allows the hoist beam  32  to rotate clockwise and/or counter-clockwise about a horizontally-oriented pivot bolt pivot axis  105 . Preferably, the rotation of the hoist beam  32  about the horizontally-oriented pivot bolt pivot axis  105  allows the hoist beam forward end  34  to move upward and downward and toward and away from the tower pole  12  to allow the hoist beam  32  to move between a raised and lowered positions. Optionally, the hoist  30  may be installed on any face of a rectangular tower pole  12  including exterior faces  27 A and interior faces  27 B, as best shown in  FIG.  45   . 
     Similar to the embodiments previously described, a lower vertically-oriented pivot bolt  106  may connect the hoist beam  32  to the lower cross beam bracket  488 . Optionally, the lower vertically-oriented pivot bolt  106  may be located rearwardly relative to the horizontally-oriented pivot bolt  104 . The lower vertically-oriented pivot bolt  106  may optionally be configured to allow the hoist beam  32  to rotate clockwise and/or counter-clockwise about a lower vertically-oriented pivot bolt pivot axis  107  extending generally parallel to the tower pole height  18 . Preferably, rotation of the hoist beam  32  about the lower vertically-oriented pivot bolt  106  allows the hoist beam  32  to move toward and away from the lower forward cross beam  424  to allow the hoist beam  32  to move in a plane perpendicular to the tower pole height  18 . In some cases, the lower cross beam bracket  438  further comprises a movable bridge  110 , as described previously. 
     Optionally, at least after complete installation of the system, an upper cross beam bracket  440  is connected to the upper cross beam  388  on the outside of, as opposed to between, of the left and right upper rods  430 ,  432 . Further, the upper cross beam bracket  440  may be optionally located above the lower cross beam bracket  438 . Optionally, an upper vertically-oriented pivot bolt  182  connects the upper end  47 A of the brace cable  46  to the upper cross beam bracket  440 . Optionally, the brace cable  46  configured to rotate (in a coordinated fashion with the hoist beam  32 ) clockwise and/or counter-clockwise about an upper vertically-oriented pivot bolt pivot axis  134  extending generally parallel to the tower pole height  18 . Preferably, as with the previous embodiments, rotation of the brace cable  46  about the upper vertically-oriented pivot bolt pivot axis  134  allows the hoist beam  32  to move toward and away from the lower cross beam  389  in the plane perpendicular to the tower pole height  18 . 
     In some cases, for example, when the hoist  30  is secured to a rectangular tower pole  12 , the hoist  30  may further comprise one or more support cross beam braces  450 , a rear support cross beam  452 , a forward support cross beam  454 , a left support rod  456 , and a right support rod  458 . Optionally, the a rear support cross beam  452  and a forward support cross beam  454  are secured to the rectangular tower pole  12  by having the left support rod  456  and the right support rod  458  extend between the rear support cross beam  452  and the forward support cross beam  454 , wherein the left and right support rods  456 ,  458  are optionally configured to draw the rear support cross beam  452  toward the forward support cross beam  454  to compress the tower pole  12  between the rear support cross beam  452  and the forward support cross beam  454 . Optionally, the support cross beam braces  450  extend between and secure to the forward support cross beam  454  and the lower forward cross beam  424 . Without being bound to any particular theory, such configuration provides vertical support to the hoist  30  to prevent it from slipping down the tower pole  12  under load. 
     Optionally, i) the rear support cross beam  452  and the forward support cross beam  454  are at substantially the same height; ii) the rear support cross beam  452  and/or the forward support cross beam  454  are oriented substantially parallel to the ground and perpendicular to the tower pole; and/or iii) the rear support cross beam  452  and the forward support cross beam  454  are below the lower rear cross beam  426 , lower forward cross beam  424 , the upper rear cross beam  422 , and/or the upper forward cross beam  420 . 
     In addition, the system may optionally comprise include one or more features described above. 
     In some cases, the hoist  30  and platform  400  may allow for workers to connect to them with 100% tie-off. Thus, in some embodiments, a worker may position a tie-off cable (not shown) around a component of the hoist  30  or platform  400  for example. The hoist  30  may also be used to raise and lower a man basket  182  configured to carry a human, as shown in  FIGS.  41 - 42   . For example, a man basket  182  may be attached to the hoist beam  32  via a trolley  184  so that a worker may move from the tower  10  to work on the antennas 8 feet away, similar to how a worker may use the platform  400  described. The trolley  184  may ride on a bottom flange  188  or bottom flanges  188  of the hoist beam  32 . 
     The brackets that connect components to the tower poles are preferably clamps, meaning that they are wrapped tightly at least partially around the perimeter/outer wall/outer surface of the tower poles—e.g., using tension chains or straps in addition to a central bracket—and use tension to hold the brackets in place, as opposed to using bolts to connect the brackets to the towers. Preferably, the clamps are adjustable so that they may be used on towers of different dimensions. However, other configurations are possible. 
     Although the hoist and platform has principally been illustrated in conjunction with telecommunications towers, it will be appreciated that the design may be used with other towers. For example, if a piece of bulky heavy equipment is housed on an upper floor of a building, it may be impractical to use an elevator to remove the equipment from the building. In such a scenario, movers may choose to open a side of the building to remove the object. The hoist could be installed on a structural column near an alley or street to facilitate lowering/raising equipment. 
     The Embodiment of  FIGS.  48 - 60     
       FIGS.  48 - 60    show embodiments of hoist systems  600  similar to the systems described above and also drawn to scale, with the primary difference being that the hoist system  600  of  FIGS.  48 - 60    uses different components associated with the mast  614 , as well as different clamp bracket systems  610  and  612  for attaching the mast  614  to a tower  602  such as a monopole, guyed tower or self-support tower. Preferably, the entire mast  614  is rotatable clockwise and counterclockwise relative to the tower  602 , as described below. 
     More particularly, the hoist system  600  may be secured to a pole/leg  608  of the tower  602 , as in  FIGS.  50 - 52  and  59 - 60   , or the face of the guyed tower or self-support tower, as shown in  FIGS.  48 - 49  and  53 - 58   . Regardless of the embodiment, the design of the mast  614  (and associated components such as upper bearings  664 ), hoist beam  624 , and other components are generally the same, the primary difference being that the embodiments of  FIGS.  48 - 49  and  53 - 58    use an upper and lower cross beam  708  and  710 . 
     Referring first to the hoist system  600  of  FIGS.  50 - 52  and  59 - 60   , the tower  602  may comprise a tower top  604  located above the ground, a tower bottom (not shown) and a tower height  606  extending from the tower top  604  to the tower bottom. As shown in  FIGS.  50 - 52  and  59 - 60   , the method of securing may involve assembling the hoist system  600  by performing one or more of the following steps in any suitable order including simultaneously: 
     a) securing an upper clamp bracket system  610  to the tower  602  by placing the upper clamp bracket system  610  at least partially around a pole/leg  608  of the tower  602 ; 
     b) securing a lower clamp bracket system  612  to the tower  602  by placing the lower clamp bracket system  612  at least partially around a pole/leg  608  of the tower  602 ; 
     c) securing a mast  614  to at least one of the upper and lower clamp bracket systems  610  and  612 , the mast  614  comprising a top  616 , a bottom  618 , and a height  620  extending from the top  616  to the bottom  618 ; 
     d) providing a mast clamp bracket system  622 ; and/or 
     e) providing a hoist system  600  comprising a hoist beam  624  comprising a forward end  626 , a rear end  628 , a hoist beam length  680  extending from the forward end  626  to the rear end  628 . 
     Optionally, at least after complete installation, 
     i) the upper and lower clamp bracket systems  610  and  612  connect the mast  614  to the tower  602 , as shown in  FIGS.  50 - 52  and  59 - 60   ; 
     ii) the upper clamp bracket system  610  is located above the lower clamp bracket system  612 , as shown in  FIGS.  50 - 52  and  59 - 60   ; 
     iii) the mast clamp bracket system  622  is located above the upper and lower clamp bracket systems  610  and  612  and connects the hoist beam rear end  628  to the mast  614  and wraps at least partially around the mast  614 , as shown in  FIGS.  59 - 60    (with hoist beam  624 ) and  50 - 52  (without hoist beam); 
     iv) the hoist beam  624  extends laterally from the mast  614  and the mast clamp bracket system  622 , as shown in  FIGS.  59 - 60   ; 
     v) as in prior embodiments, the hoist beam  624  further comprises at least one load-end sheave and at least one return sheave located rearwardly relative to the at least one load-end sheave (not shown in  FIGS.  59 - 60    but shown in other embodiment, such as  FIGS.  35 - 36   ); 
     vi) as in prior embodiments, a load line extends from below the hoist beam  624 , at least partially around the at least one load-end sheave and at least partially around the at least one return sheave and then below the hoist beam (not shown in  FIGS.  59 - 60    but shown in other embodiment, such as  FIGS.  35 - 36   ); 
     vi) a brace cable  682  connects the hoist beam  624  to the mast  614  above the mast clamp bracket system  622  and extends at an angle relative to the tower height  606  and comprises an upper end  684  connected to the mast and a lower end  686  connected to the hoist beam  624 , as shown in  FIGS.  59 - 60   ; 
     vii) the mast height  620  is generally parallel to the tower height  606 , as shown in  FIGS.  50 - 52  and  59 - 60   ; 
     viii) the mast top  616  is above the tower top  604 , as shown in  FIGS.  50 - 52  and  59 - 60   ; and/or 
     ix) the mast bottom  618  is above the tower bottom, as shown in  FIGS.  50 - 52  and  59 - 60    where tower  602  extends below mast bottom  618 . 
     Optionally, at least after complete installation, the mast bottom  618  is connected to the lower clamp bracket system  612  and the lower clamp bracket system  612  bears at least part of the weight of the mast  614 , as shown in  FIGS.  51 - 52   . Optionally, at least after complete installation, at least one vertical brace  688  extends between the upper and lower clamp bracket systems  610  and  612  so that the upper clamp bracket system  610  bears part of the weight of the mast  614  (e.g., by pulling up on the lower clamp bracket system  612 ). For example, as best seen in  FIGS.  50  and  59    as well as the related embodiment of  FIG.  53   , the at least one vertical brace  638  comprises two vertical braces  688  separated by a distance  640 , wherein the two vertical braces  688  form a v-shape, and optionally the distance  640  between the vertical braces  688  is largest at the upper clamp bracket system  610  and smallest at the lower clamp bracket system  612 . Optionally, each vertical brace  638  comprises a plurality of fastener apertures  642  spaced along a length of the vertical brace  688  to allow the spacing between the upper and lower clamp bracket systems  610  and  612  to be adjusted. Optionally, a fastener  644  oriented generally perpendicular to the tower height  606  passes through a fastener aperture  642  and into a vertical brace  638  of the at least one vertical brace and connects the lower clamp bracket system  612  to the vertical brace  688  of the at least one vertical brace, as best seen in  FIG.  59    as well as the related embodiment of  FIG.  55   . Optionally, as best seen in  FIG.  59    the vertical braces  688  are on opposite sides of the mast  614  (e.g., one brace is at the 11 o&#39;clock position and the other is at the 1 o&#39;clock position). Optionally, as with prior embodiments and as best seen in  FIG.  59   , at least after complete installation, a horizontally-oriented pivot bolt  646  pivotably connects the hoist beam  624  to the mast clamp bracket system  622 , the horizontally-oriented pivot bolt  646  configured to allow the hoist beam  624  to rotate clockwise and/or counter-clockwise about a horizontally-oriented pivot bolt pivot axis (not shown but extending through the horizontally-oriented pivot bolt  646  generally perpendicular to the tower height  606 ), and rotation of the hoist beam  624  about the horizontally-oriented pivot bolt pivot axis allows the hoist beam forward end  626  to move upward and downward and toward and away from the tower top  604 . Optionally, as with prior embodiments and as best seen in  FIG.  59   , the brace cable  682  comprises an upper chain  648 , a turnbuckle  650 , and a lower chain  652 , the upper chain  648  having an upper end connected to the upper clamp bracket system  610  and a lower end connected to an upper end of the turnbuckle  650  and further wherein the lower chain  652  comprises an upper end connected to a lower end of the turnbuckle  650  and a lower end connected to the hoist beam  624 , and further wherein the hoist beam  624  is configured to move upward when the turnbuckle  650  is shortened. (It will be appreciated that although not all the aforementioned parts are labelled in  FIG.  59   , such parts are labelled in the prior embodiments). 
     Optionally, the mast  614  is not directly attached to the upper clamp bracket system  610  but instead the upper clamp bracket  610  at least captures the mast  614 , as best seen in the related embodiments of  FIG.  54   . Optionally, at least after complete installation, as best seen in the related embodiment of  FIGS.  53 - 54  and  57 - 58    the mast  614  comprises at least one bearing system configured to allow the mast  614  to rotate relative to the tower  602  about a mast central/longitudinal axis  662 , the mast central axis  662  running generally parallel to the mast height  620  and tower height  606 . More particularly, the at least one bearing system may comprise a plurality of upper bearings/rollers  664  connected to the upper clamp bracket system  610 , the plurality of upper bearings  664  spaced about a perimeter of the mast  614  and preventing the mast  614  from moving laterally relative to the tower  602 . Optionally, the mast  614  is cylindrical and the plurality of upper bearings  664  are spaced about a circumference of the mast  614 . Optionally, the upper clamp bracket system  610  comprises a circular hole  668  receiving the mast  614  and the rollers  664  are located adjacent to the hole  668 , as best seen in  FIG.  57   . Optionally, the at least one bearing system further comprises a brake, the brake, when engaged, configured to prevent the mast  614  from rotating relative to the mast central axis  662 . For example, as shown in  FIGS.  54 ,  57  and  58   , the brake is in the form of a U-bolt  666  that wraps partially around the mast  614  and prevents the mast  614  from rotating within the hole  668  in the upper clamp bracket system  610 . Optionally, as best seen in  FIGS.  52 , and  55 - 56   , at least after complete installation, the lower clamp bracket system  612  further comprises a cavity  670  receiving the mast bottom  618 , a horizontal plate  672  comprising at least one fastener aperture  674  and located at a bottom of the cavity  670 , wherein a bottom round insert  676  is secured to the mast bottom  618  and comprises at least one fastener aperture  678  and a flange  680 , and further wherein a lower fastener  682  extends through a fastener aperture  674  of the horizontal plate  672  and a fastener aperture  678  of the bottom round insert  676  and connects the lower clamp bracket system  612  to the mast  614 . Optionally, to allow for adjustment, the horizontal plate  672  comprises a plurality of fastener apertures  674  spaced at different lateral distances from the tower  602  as best seen in the related embodiment of  FIGS.  55 - 56   . Optionally, as is the case of  FIGS.  48 - 60   , at least after complete installation, the horizontal plate  672  bears at least part of the weight of the mast  614 . Optionally, the lower fastener  682  is aligned with the mast central axis  662 . Optionally, as best seen in the cross-sectional view of  FIG.  52   , at least after complete installation, the mast  614  is in the form of a cylindrical pipe and comprises a wall  684  surrounding a hollow interior  685 , and further wherein the mast  614  rests on the flange  680 . Optionally, as best seen in  FIGS.  52 , and  56   , the lower fastener  682  is a bolt and one or more nuts and one or more washers surround the bolt. Optionally, as best seen in  FIGS.  52 , and  56   , at least one upper washer  686  surrounds the bolt and is located above the horizontal plate  672  and at least one lower washer  688  surrounds the bolt and is located below the horizontal plate  672 . Optionally, one or more of the washers are bronze bearings. Optionally, a cotter pin  690  keeps the lower fastener  682  in place. 
     The hoist system  600  may also include one or more features of the prior embodiments. 
     For example, optionally, as best seen with the prior embodiments of  FIGS.  35 - 36   , the hoist beam  624  further comprises a top, a bottom, a hoist beam height extending from the top to the rear bottom, a hoist beam channel extending from the hoist beam top to hoist beam bottom, the hoist beam channel dividing the hoist beam into a hoist beam left side and hoist beam right side, and the at least one load-end sheave, the at least one return sheave and at least a segment of the load line are located in the channel. (It will be appreciated that although such parts are not labelled in  FIGS.  48 - 60   , the parts are labelled in  FIGS.  35 - 36   ). Optionally, at least after complete installation the at least one return sheave is located between the at least one load-end sheave and the hoist beam rear end. Optionally, at least after complete installation, the at least one load-end sheave and at least one return sheave are each configured to rotate about axes extending generally perpendicular to the hoist beam length. Optionally, at least after complete installation, the at least one load-end sheave comprises a plurality of load-end sheaves spaced about the hoist beam length, and further wherein the plurality of load-end sheaves and the at least one return sheave are aligned within the channel. Optionally, at least after complete installation, the hoist beam  624  further comprises a termination bracket  692 , the termination bracket  692  having an upper end located in the hoist beam channel and a lower end extending downward from the hoist beam and comprising a hole. Optionally, at least after complete installation, the load line runs from below the hoist beam, up through the hoist beam channel between the at least one return sheave and the hoist beam rear end, at least partially around the at least one return sheave and the at least one load-end sheave, and back down through the hoist beam channel between the at least one load-end sheave and the forward end of the hoist beam, and further wherein, the load line runs down toward a load and back up to the termination bracket. 
     Optionally, as best seen with the prior embodiments of  FIGS.  3  and  9   , the tower is a monopole and comprises a plurality of sides, at least after complete installation, the upper bracket system  610  comprises a first clamp central bracket comprising a front side connected to the rear side of the hoist beam, a rear side facing the tower and opposite the front side, a left side and a right side and a cable system extending partially around the tower and comprising a first end connected to the left side and a second end connected to the right side. Optionally, as described in the prior embodiment, the first clamp central bracket rear side and comprises a v-shaped recess engaging the tower to provide vertical stability. For example, in a non-limiting example, the tower pole has sixteen sides, and the v-shaped recess has an angle of approximately 22.5 degrees to match the angle of the tower pole. Optionally, the cable system is u-shaped. (The cable system is not shown in  FIG.  59    but is similar to that shown in other embodiments, such as  FIGS.  1 ,  3 - 8  and  32   ). Optionally, the u-shaped cable system is comprised of one or more chain tensioners and one or more chains, said one or more chain tensioners connected to the central bracket and one or more of said chains. Optionally, the cable system is comprised of a left chain, a left chain tensioner, a flexible clamp cable, a right chain, and a right chain tensioner, the left chain tensioner having a forward end connected to the first clamp central bracket left side and a rear end connected to a forward end of the left chain, the left chain having a rear end connected to a left end of the flexible clamp cable, the flexible clamp cable having a right end connected to a rear end of the right chain, the right chain having a forward end connected to a rear end of the right chain tensioner, the right chain tensioner having a forward end connected to the right side of the first clamp central bracket. 
     In still further embodiments, the present disclosure provides a related hoist system  600  that secures to the face of a guyed or self-support tower. More particularly, as shown in  FIGS.  48 - 49  and  53 - 58   , the present disclosure provides a method of securing a hoist system  600  to a tower  602  that may comprise a left tower pole/leg  608  and a right tower pole/leg  608 , the left tower pole/leg  608  connected to the right tower pole/leg  608  by a plurality of tower braces  698 , the tower  602 , the left tower pole/leg  608  and the right tower pole/leg  608  each having a top  604  located above the ground, a bottom and a height  606  extending from the top  604  to the bottom. The method may comprise assembling a hoist system  600  by performing the following steps in any suitable order including simultaneously: 
     a) securing a lower right clamp bracket system  702  to the right tower pole/leg  608  by placing the lower right clamp bracket system  702  at least partially around the right tower pole/leg  608 , as shown in  FIGS.  48 - 49   ; 
     b) securing an upper right clamp bracket system  706  to the right tower pole/leg  608  by placing the upper right clamp bracket system  706  at least partially around the right tower pole/leg  608 , as shown in  FIGS.  48 - 49   ; 
     c) securing a lower left clamp bracket system  700  to the left tower pole/leg  608  by placing the lower left clamp bracket system  700  at least partially around the left tower pole/leg  608 , as shown in  FIGS.  48 - 49   ; 
     d) securing an upper left clamp bracket system  704  to the left tower pole/leg  608  by placing the upper left clamp bracket system  704  at least partially around the left tower pole/leg  608 , as shown in  FIGS.  48 - 49   ; 
     e) providing a hoist beam  624  comprising a forward end  626 , a rear end  628 , a hoist beam length  680  extending from the hoist beam forward end  626  to the hoist rear end  628  (labelled in the related embodiment of  FIG.  59   ); 
     f) providing an upper cross beam  708  and a lower cross beam  710 , as shown in  FIGS.  48 - 49   ; and/or 
     g) providing a mast  614 , the mast  614  comprising a top  616 , a bottom  618 , and a height  620  extending from the top  616  to the bottom  618 , as shown in  FIGS.  48 - 49   . 
     Optionally, at least after complete installation, 
     i) the lower left clamp bracket system  700  is at substantially the same height as the lower right clamp bracket system  702 , as shown in  FIGS.  48 - 49   ; 
     ii) the lower cross beam  710  extends between the lower left clamp bracket system  700  and the lower right clamp bracket system  702  and is oriented generally parallel to the ground and perpendicular to the tower height  606 , as shown in  FIGS.  48 - 49   ; 
     iii) the upper left clamp bracket system  704  is at substantially the same height as the upper right clamp bracket system  706 , as shown in  FIGS.  48 - 49   ; 
     iv) the upper cross beam  708  extends between the upper left clamp bracket system  704  and the upper right clamp bracket system  706  and is oriented generally parallel to the ground and perpendicular to the tower height  606 , as shown in  FIGS.  48 - 49   ; 
     v) the upper cross beam  708 , the upper left clamp bracket system  704  and the upper right clamp bracket system  706  are located above the lower cross beam  710 , the lower left clamp bracket system  702  and the lower right clamp bracket system  704 , as shown in  FIGS.  48 - 49   ; 
     vi) the mast  614  is connected to the lower cross beam  710  by a lower cross beam bracket  714  (which has some or all of the features as the lower clamp bracket system  612  of the prior embodiment shown in  FIGS.  50 - 52  and  59 - 60    for example) located between the lower left clamp bracket system  700  and the lower right clamp bracket  702 , as shown in  FIGS.  48 - 49  and  55 - 56   ; 
     vii) the mast height  620  extends generally parallel to the tower height  606 , as shown in  FIGS.  48 - 49   ; 
     viii) the hoist beam  624  is connected to the mast and extends laterally from the mast, as shown in  FIGS.  48 - 49   ; 
     ix) as shown in prior embodiments, the hoist beam  624  further comprises at least one load-end sheave and at least one return sheave located rearwardly relative to the at least one load-end sheave, and a load line extends from below the hoist beam, at least partially around the at least one load-end sheave and at least partially around the at least one return sheave and then below the hoist beam (not all components shown in  FIGS.  48 - 49    but shown in other embodiments, such as  FIGS.  35 - 36   ); and/or 
     x) a brace cable  682  connects the hoist beam to the mast  614  and extends at an angle relative to the tower height  606  and comprises an upper end  684  connected to the mast  614  and a lower end  636  connected to the hoist beam  624 , as shown in  FIGS.  48 - 49   . 
     Optionally, at least after complete installation, at least after complete installation, the mast top  616  is above the tower top  604  and the mast bottom  618  is above the tower bottom, as shown in  FIGS.  48 - 49   . Optionally, at least after complete installation, the mast bottom  618  is adjacent the lower cross beam  710 , as shown in  FIGS.  48 - 49   . 
     The hoist system  600  may also include one or more features of the prior embodiments. For example an upper cross beam bracket  716  (which has some or all of the features as upper clamp bracket system  610  of the prior embodiment shown in  FIGS.  50 - 52  and  59 - 60    for example and is located between upper left clamp bracket system  704  and upper right clamp bracket system  706 ) may capture the mast  614 . 
     
       
         
           
               
             
               
                   
               
               
                 Part List 
               
               
                   
               
             
            
               
                   
               
            
           
           
               
               
            
               
                 Tower 
                  10 
               
               
                 Tower Pole 
                  12 
               
               
                 Tower Pole Top 
                  14 
               
               
                 Left Tower Pole Top 
                      14A 
               
               
                 Right Tower Pole Top 
                      14B 
               
               
                 Tower Pole Bottom 
                  16 
               
               
                 Left Tower Pole Bottom 
                      16A 
               
               
                 Right Tower Pole Bottom 
                      16B 
               
               
                 Tower Pole Height 
                  18 
               
               
                 Left Tower Pole Height 
                      18A 
               
               
                 Right Tower Pole Height 
                      18B 
               
               
                 Tower Pole Surface 
                  20 
               
               
                 Tower Pole Flat Side 
                  21 
               
               
                 Left Tower Pole 
                  22 
               
               
                 Right Tower Pole 
                  24 
               
               
                 Rear Tower Pole 
                  26 
               
               
                 Tower Pole Exterior Face 
                      27A 
               
               
                 Tower Pole Interior Face 
                      27B 
               
               
                 Tower Braces 
                  28 
               
               
                 Hoist 
                  30 
               
               
                 Hoist Beam 
                  32 
               
               
                 Hoist Beam Forward End 
                  34 
               
               
                 Hoist Beam Rear End 
                  36 
               
               
                 Hoist Beam Length 
                  38 
               
               
                 At Least One Load-End Sheave 
                  40 
               
               
                 At Least One Return Sheave 
                  42 
               
               
                 Pulley Cable/Load Line 
                  44 
               
               
                 Brace Cable 
                  46 
               
               
                 Brace Cable Upper End 
                      47A 
               
               
                 Brace Cable Lower End 
                      47B 
               
               
                 Hoist Beam Top 
                      51A 
               
               
                 Hoist Beam Bottom 
                      51B 
               
               
                 Hoist Beam Height 
                  52 
               
               
                 Hoist Beam Channel 
                  54 
               
               
                 Hoist Beam Left Side 
                      55A 
               
               
                 Hoist Beam Right Side 
                      55B 
               
               
                 Termination Bracket 
                  56 
               
               
                 Termination Bracket Upper End 
                      57A 
               
               
                 Termination Bracket Lower End 
                      57B 
               
               
                 Termination Bracket Hole 
                  58 
               
               
                 Rope Guides 
                  62 
               
               
                 Building 
                  64 
               
               
                 Interior 
                  66 
               
               
                 First Clamp Bracket System 
                  70 
               
               
                 First Clamp Central Bracket 
                  72 
               
               
                 First Clamp Central Bracket Front Side 
                  74 
               
               
                 First Clamp Central Bracket Rear Side 
                  76 
               
               
                 First Clamp Central Bracket Left Side 
                      77A 
               
               
                 First Clamp Central Bracket Right Side 
                      77B 
               
               
                 U-shaped/Circular Cable System 
                  78 
               
               
                 Cable System First End 
                  80 
               
               
                 Cable System Second End 
                  82 
               
               
                 Left Chain 
                  84 
               
               
                 Left Chain Forward End 
                      86A 
               
               
                 Left Chain Rear End 
                      86B 
               
               
                 Left Chain Tensioner 
                  88 
               
               
                 Left Chain Tensioner Forward End 
                      90A 
               
               
                 Left Chain Tensioner Rear End 
                      90B 
               
               
                 Flexible Clamp Cable 
                  92 
               
               
                 Flexible Clamp Cable Right End 
                      94A 
               
               
                 Flexible Clamp Cable Left End 
                      94B 
               
               
                 Right Chain Tensioner 
                  96 
               
               
                 Right Chain Tensioner Forward End 
                      98A 
               
               
                 Right Chain Tensioner Rear End 
                      98B 
               
               
                 Right Chain 
                 100 
               
               
                 Right Chain Forward End 
                     102A 
               
               
                 Right Chain Rear End 
                     102B 
               
               
                 Horizontally-Oriented Pivot Bolt 
                 104 
               
               
                 Horizontally-Oriented Pivot Bolt Pivot Axis 
                 105 
               
               
                 Lower Vertically-Oriented Pivot Bolt 
                 106 
               
               
                 Lower Vertically-Oriented Pivot Bolt Pivot Axis 
                 107 
               
               
                 First Clamp Central Bracket Brake 
                 108 
               
               
                 Movable Bridge 
                 110 
               
               
                 Movable Bridge Forward Section 
                 112 
               
               
                 Movable Bridge Rear Section 
                 114 
               
               
                 First/Second Clamp Central Bracket Upper Plate 
                 116 
               
               
                 First/Second Clamp Central Bracket Lower Plate 
                 118 
               
               
                 First/Second Clamp Central Bracket Lower Plate Bolt Hole 
                 119 
               
               
                 Second Clamp Bracket System 
                 120 
               
               
                 Second Clamp Central Bracket 
                 122 
               
               
                 Second Clamp Central Bracket Front Side 
                 124 
               
               
                 Second Clamp Central Bracket Rear Side 
                 126 
               
               
                 V-shaped recess 
                 127 
               
               
                 Second Clamp Central Bracket Left Side 
                 128 
               
               
                 Angle at v-shaped recess 
                 129 
               
               
                 Second Clamp Central Bracket Right Side 
                 130 
               
               
                 Upper Vertically-Oriented Pivot Bolt 
                 132 
               
               
                 Upper Vertically-Oriented Pivot Bolt Pivot Axis 
                 134 
               
               
                 Vertical Brace 
                 136 
               
               
                 Vertical Brace Upper End 
                 138 
               
               
                 Vertical Brace Lower End 
                 140 
               
               
                 Vertical Brace Difference 
                 142 
               
               
                 Brace Cable Upper Chain 
                 144 
               
               
                 Brace Cable Upper Chain Upper End 
                     146A 
               
               
                 Brace Cable Upper Chain Lower End 
                     146B 
               
               
                 Brace Cable Lower Chain 
                 148 
               
               
                 Brace Cable Lower Chain Upper End 
                     150A 
               
               
                 Brace Cable Lower Chain Lower End 
                     150B 
               
               
                 Brace Cable Turnbuckle 
                 152 
               
               
                 Brace Cable Turnbuckle in Shortened Configuration 
                     152A 
               
               
                 Brace Cable Turnbuckle in Lengthened Configuration 
                     152B 
               
               
                 Brace Cable Turnbuckle Upper End 
                     154A 
               
               
                 Brace Cable Turnbuckle Lower End 
                     154B 
               
               
                 Removable Bolt/Lug 
                 156 
               
               
                 Jack Bolt 
                 160 
               
               
                 Jack Bolt Proximal End 
                 162 
               
               
                 Jack Bolt Distal End 
                 164 
               
               
                 First Clamp Central Bracket Top 
                 168 
               
               
                 First Clamp Central Bracket Bottom 
                 170 
               
               
                 Second Clamp Central Bracket Top 
                 172 
               
               
                 Second Clamp Central Bracket Bottom 
                 174 
               
               
                 Jack Bracket 
                 176 
               
               
                 Removable Insert 
                 180 
               
               
                 Man Basket 
                 182 
               
               
                 Man Basket Cable 
                 183 
               
               
                 Trolley 
                 184 
               
               
                 Trolley Forward End 
                     185A 
               
               
                 Trolley Rear End 
                     185B 
               
               
                 Basket Hoist 
                 186 
               
               
                 Bottom Flange(s) 
                 188 
               
               
                 Mast 
                 200 
               
               
                 Mast Top 
                 202 
               
               
                 Mast Bottom 
                 204 
               
               
                 Mast Height 
                 206 
               
               
                 Mast Sheave 
                 209 
               
               
                 First Mast Bracket System 
                 210 
               
               
                 Second Mast Bracket System 
                 212 
               
               
                 X-shaped Vertical Brace 
                 214 
               
               
                 Mast Bolt 
                 216 
               
               
                 Mast Rod 
                 218 
               
               
                 At Least One Bearing System 
                 220 
               
               
                 Mast Central/Longitudinal Axis 
                 222 
               
               
                 Bearing System Brake 
                 224 
               
               
                 Bearing Bolt 
                 226 
               
               
                 Bearing Nut 
                 228 
               
               
                 Upper Mast Pipe 
                 230 
               
               
                 Upper Mast Pipe Top 
                 232 
               
               
                 Upper Mast Pipe Bottom 
                 234 
               
               
                 Upper Mast Pipe Height 
                 236 
               
               
                 Upper Mast Pipe Interior 
                 238 
               
               
                 Upper Mast Pipe Interior Surface 
                 240 
               
               
                 Upper Mast Pipe Inner Diameter 
                 242 
               
               
                 Upper Mast Pipe Exterior Surface 
                 244 
               
               
                 Upper Mast Pipe Exterior Diameter 
                 246 
               
               
                 Lower Bearing System 
                 247 
               
               
                 Upper Mast Pipe Plurality of Holes 
                 248 
               
               
                 Lower Bearing System Rollers 
                 249 
               
               
                 Lower Mast Pipe 
                 250 
               
               
                 Lower Mast Pipe Top 
                 252 
               
               
                 Lower Mast Pipe Bottom 
                 254 
               
               
                 Lower Mast Pipe Height 
                 256 
               
               
                 Lower Mast Pipe Interior 
                 258 
               
               
                 Lower Mast Pipe Interior Surface 
                 260 
               
               
                 Lower Mast Pipe Inner Diameter 
                 262 
               
               
                 Lower Mast Pipe Exterior Surface 
                 264 
               
               
                 Lower Mast Pipe Exterior Diameter 
                 266 
               
               
                 Lower Mast Pipe Plurality of Holes 
                 268 
               
               
                 Stabilizer Plate 
                 270 
               
               
                 Stabilizer Plate Upper Face 
                 272 
               
               
                 Stabilizer Plate Lower Face 
                 274 
               
               
                 Stabilizer Plate Center Hole 
                 276 
               
               
                 Stabilizer Plate Plurality of Outer Holes 
                 278 
               
               
                 Stabilizer Plate Diameter 
                 279 
               
               
                 First Bearing Plate 
                 280 
               
               
                 First Bearing Plate Top 
                 282 
               
               
                 First Bearing Plate Upper Face 
                 284 
               
               
                 First Bearing Plate Bottom 
                 286 
               
               
                 First Bearing Plate Lower Face 
                 288 
               
               
                 First Bearing Plate Center Hole 
                 290 
               
               
                 First Bearing Plate Outer Edge 
                 292 
               
               
                 First Bearing Plate Diameter 
                 294 
               
               
                 Second Bearing Plate 
                 300 
               
               
                 Second Bearing Plate Top 
                 302 
               
               
                 Second Bearing Plate Upper Face 
                 304 
               
               
                 Second Bearing Plate Bottom 
                 306 
               
               
                 Second Bearing Plate Lower Face 
                 308 
               
               
                 Second Bearing Plate Center Hole 
                 310 
               
               
                 Second Bearing Plate Outer Edge 
                 312 
               
               
                 Second Bearing Plate Diameter 
                 314 
               
               
                 Third Bearing Plate 
                 320 
               
               
                 Third Bearing Plate Top 
                 322 
               
               
                 Third Bearing Plate Upper Face 
                 324 
               
               
                 Third Bearing Plate Bottom 
                 326 
               
               
                 Third Bearing Plate Lower Face 
                 328 
               
               
                 Third Bearing Plate Center Hole 
                 330 
               
               
                 Third Bearing Plate Upper Face Edge 
                 332 
               
               
                 Third Bearing Plate Lower Face Edge 
                 334 
               
               
                 Third Bearing Plate Upper Face Diameter 
                 336 
               
               
                 Third Bearing Plate Lower Face Diameter 
                 338 
               
               
                 Third Bearing Plate Ledge/Recess 
                 339 
               
               
                 Fourth Bearing Plate 
                 340 
               
               
                 Fourth Bearing Plate Top 
                 342 
               
               
                 Fourth Bearing Plate Upper Face 
                 344 
               
               
                 Fourth Bearing Plate Bottom 
                 346 
               
               
                 Fourth Bearing Plate Lower Face 
                 348 
               
               
                 Fourth Bearing Plate Outer Edge 
                 352 
               
               
                 Fourth Bearing Plate Diameter 
                 354 
               
               
                 Top Washer 
                 360 
               
               
                 Top Washer Center Hole 
                 362 
               
               
                 Top Washer Upper Face 
                 366 
               
               
                 Bottom Washer 
                 370 
               
               
                 Bottom Washer Center Hole 
                 372 
               
               
                 Bottom Washer Lower Face 
                 376 
               
               
                 Lower Right Clamp Bracket System 
                 380 
               
               
                 Upper Right Clamp Bracket System 
                 382 
               
               
                 Lower Left Clamp Bracket System 
                 384 
               
               
                 Upper Left Clamp Bracket System 
                 386 
               
               
                 Upper Cross Beam 
                 388 
               
               
                 Lower Cross Beam 
                 389 
               
               
                 Lower Cross Beam Bracket 
                 390 
               
               
                 Upper Cross Beam Bracket 
                 392 
               
               
                 Davit 
                 393 
               
               
                 Davit Sheave 
                 394 
               
               
                 Davit Top 
                     395A 
               
               
                 Davit Bottom 
                     395B 
               
               
                 Davit Flange 
                 396 
               
               
                 Davit Height 
                 397 
               
               
                 Upper Davit Pole 
                 398 
               
               
                 Lower Davit Pole 
                 399 
               
               
                 Platform 
                 400 
               
               
                 Platform Beam 
                 402 
               
               
                 Platform Beam Forward End 
                 404 
               
               
                 Platform Beam Rear End 
                 406 
               
               
                 Platform Beam Length 
                 408 
               
               
                 Platform Floor 
                 410 
               
               
                 Platform Horizontal Rail 
                 412 
               
               
                 Platform Vertical Rail 
                 414 
               
               
                 Upper Forward Cross Beam 
                 420 
               
               
                 Upper Rear Cross Beam 
                 422 
               
               
                 Lower Forward Cross Beam 
                 424 
               
               
                 Lower Rear Cross Beam 
                 426 
               
               
                 Upper Left Rod 
                 430 
               
               
                 Upper Right Rod 
                 432 
               
               
                 Lower Left Rod 
                 434 
               
               
                 Lower Right Rod 
                 436 
               
               
                 Lower Cross Beam Bracket 
                 438 
               
               
                 Upper Cross Beam Bracket 
                 440 
               
               
                 Support Cross Beam Brace(s) 
                 450 
               
               
                 Rear Support Cross Beam 
                 452 
               
               
                 Forward Support Cross Beam 
                 454 
               
               
                 Left Support Rod 
                 456 
               
               
                 Right Support Rod 
                 458 
               
               
                 Rear Right Tower Pole 
                 500 
               
               
                 Rear Right Tower Pole Top 
                 502 
               
               
                 Rear Right Tower Pole Bottom 
                 504 
               
               
                 Rear Right Tower Pole Height 
                 506 
               
               
                 Rear Left Tower Pole 
                 510 
               
               
                 Rear Left Tower Pole Top 
                 512 
               
               
                 Rear Left Tower Pole Bottom 
                 514 
               
               
                 Rear Left Tower Pole Height 
                 516 
               
               
                 Lower Left Horizontal Brace 
                 520 
               
               
                 Lower Right Horizontal Brace 
                 522 
               
               
                 Lower Left Horizontal Brace Clamp 
                 524 
               
               
                 Lower Right Horizontal Brace Clamp 
                 526 
               
               
                 Upper Left Horizontal Brace 
                 530 
               
               
                 Upper Right Horizontal Brace 
                 532 
               
               
                 Upper Left Horizontal Brace Clamp 
                 534 
               
               
                 Upper Right Horizontal Brace Clamp 
                 536 
               
               
                 Man Basket Forward Cross Bracket 
                 540 
               
               
                 Man Basket Rear Cross Bracket 
                 542 
               
               
                 Man Basket Chains 
                 543 
               
               
                 Man Basket Forward Cross Bracket Left End 
                 544 
               
               
                 Man Basket Forward Cross Bracket Right End 
                 545 
               
               
                 Man Basket Rear Cross Bracket Left End 
                 546 
               
               
                 Man Basket Rear Cross Bracket Right End 
                 547 
               
               
                 Man Basket Floor 
                 550 
               
               
                 Man Basket Horizontal Rail 
                 552 
               
               
                 Man Basket Vertical Rail 
                 554 
               
               
                 Hoist System 
                 600 
               
               
                 Tower 
                 602 
               
               
                 Tower Top 
                 604 
               
               
                 Tower height 
                 606 
               
               
                 Tower pole/leg 
                 608 
               
               
                 Upper Clamp Bracket system 
                 610 
               
               
                 Lower Clamp Bracket system 
                 612 
               
               
                 Mast 
                 614 
               
               
                 Mast Top 
                 616 
               
               
                 Mast Bottom 
                 618 
               
               
                 Mast Height 
                 620 
               
               
                 Mast Clamp Bracket System 
                 622 
               
               
                 Hoist Beam 
                 624 
               
               
                 Hoist Beam Forward End 
                 626 
               
               
                 Hoist Beam Rear End 
                 628 
               
               
                 Hoist Beam Length 
                 630 
               
               
                 Brace Cable 
                 632 
               
               
                 Brace Cable Upper End 
                 634 
               
               
                 Brace Cable Lower End 
                 636 
               
               
                 Vertical Brace 
                 638 
               
               
                 Distance 
                 640 
               
               
                 Fastener Apertures 
                 642 
               
               
                 Fastener 
                 644 
               
               
                 Pivot Bolt 
                 646 
               
               
                 Upper Chain 
                 648 
               
               
                 Turnbuckle 
                 650 
               
               
                 Lower Chain 
                 652 
               
               
                 Mast Central Axis 
                 662 
               
               
                 Upper Bearings/Rollers 
                 664 
               
               
                 U Bolt 
                 666 
               
               
                 Circular Hole 
                 668 
               
               
                 Cavity 
                 670 
               
               
                 Horizontal Plate 
                 672 
               
               
                 Horizontal Plate Fastener Aperture 
                 674 
               
               
                 Bottom Round Insert 
                 676 
               
               
                 Insert Hole 
                 678 
               
               
                 Flange 
                 680 
               
               
                 Lower Fastener 
                 682 
               
               
                 Wall 
                 684 
               
               
                 Hollow interior 
                 685 
               
               
                 Upper Washer 
                 686 
               
               
                 Lower Washer 
                 688 
               
               
                 Cotter Pin 
                 690 
               
               
                 Termination Bracket 
                 692 
               
               
                 Tower Braces 
                 698 
               
               
                 Lower left clamp bracket system 
                 700 
               
               
                 Lower right clamp bracket system 
                 702 
               
               
                 Upper left clamp bracket system 
                 704 
               
               
                 Upper right clamp bracket system 
                 706 
               
               
                 Upper Cross Beam 
                 708 
               
               
                 Lower Cross Beam 
                 710 
               
               
                 Lower Cross Beam Bracket 
                 714 
               
               
                 Upper Cross Beam Bracket 
                 716 
               
               
                   
               
            
           
         
       
     
     Those skilled in the art will understand how to make changes and modifications to the disclosed embodiments to meet their specific requirements or conditions. Changes and modifications may be made without departing from the scope and spirit of the invention. It is understood that use of the singular embraces the plural and vice versa. In addition, the steps of any method described herein may be performed in any suitable order and steps may be performed simultaneously if needed. 
     Terms of degree such as “generally”, “substantially”, “about” and “approximately” as used herein mean a reasonable amount of deviation of the modified term such that the end result is not significantly changed. For example, these terms can be construed as including a deviation of at least 5% of the modified term if this deviation would not negate the meaning of the word it modifies. In addition, the steps of the methods described herein can be performed in any suitable order, including simultaneously.