Abstract:
The Metal Lathe, Core Drill Adaptor and Rate of Cut Device are simple lathing and drilling devices including a device that restricts the advancement of the drilling and lathing motions. These devices are attached to a most any common standard upright drilling machine in a secure method to allow a person with little or no experience to operate these devices.

Description:
BACKGROUND OF THE INVENTION 
       [0001]    1. Field of the Invention 
         [0002]    The present invention relates to metal working and or machining of any materials requiring a change of diameter in any solid, round or hollow round materials by lathing, turning and or the drilling of holes in all shapes and sizes of materials regardless of configuration of that material, using a standard drill press as the power source and device used for the rotation of the materials or the cutting device. 
         [0003]    2. Description of Related Art 
         [0004]    Changing the shape of materials such as metal, wood, plastics or any other type of material has been the final goal in all aspects of trades and inventions for centuries. Lathing or reshaping of round materials by cutting away the unwanted portion of the shape. This is done by rotating or turning the material at a slow rate of speed then placing a stationary blade or cutting device onto the material with pressure. thereby removing that part of the material not wanted. 
         [0005]    Also, the drilling of holes works on the same principal as lathing, or turning except the material remains in a stationary location and the cutting device rotates as pressure is being placed onto the drilling tool and that pressure is transferred onto the material being drilled, thereby producing a hole by cutting away unwanted material. 
         [0006]    These processes requires a slow rate of cut, else damage may occur to the tools, the materials and to the person operating these devices. 
         [0007]    One major problem associated with the lathing or turning of round materials is the standard lathing machine is an extremely large, heavy and very expensive machine to own or operate. This leaves the average hobbyist and inventor at a disadvantage while trying to produce a small and inexpensive item, thereby forcing this person to have the work done at a machine shop at great expense in comparison to the value of the item being produced. 
         [0008]    It is sometimes imperative that an inventor or hobbyist get things done quickly and machine shops are usually very busy and would really rather do work that pays a great deal of money, so the small inventor or hobbyist&#39;s work usually gets put at the rear of the work list. This may take weeks or sometimes months away from the hobbyist or inventors time and very often the idea is lost in the process of waiting. 
         [0009]    One problem associated with the drilling of holes with a standard drill press is drilling of the larger holes ranging from 11/16″ thru 2″ and larger. Although this is possible, there are extreme problems associated with the process. 
         [0010]    Drill presses that are affordable usually have the capability of using drill bits up to ⅝″ and a standard drill bit cuts by removing all of the unwanted material from the intended hole thereby creating a great deal of friction or heat on the drill bit and the material. This induced heat makes the material extremely hot and difficult to drill, even with the smaller drill bits. Using cutting oil and or a coolant is always necessary when drilling to prevent damage to the bit and reducing the wear of the drill press and the motor that powers the unit. Now, when using larger drill bits, even if oil is applied, comes the extreme induced drag that is created by the larger surface being drilled and most often causes failure of the drill bit and damage to the motor of the drill press because of the extra work created by using the large drill bit. The using of these large drill bits are usually not recommended with these standard drills presses. 
         [0011]    The most efficient way to cut a hole, especially in metal materials is to use a core bit cutter in place of a standard drill bit. The core bit is a tool designed to cut a hole into steel. It uses a series of sharpened teeth in a 360 deg. configuration. It also uses a centering pin that aligns with a center punched mark in the work material to cut the hole in the proper location. This is the most efficient method of cutting a hole available because this cutter removes only a small amount of material directly under the cutting teeth and produces a core plug as waste material and does not produce as much drill shavings as a standard drill bit does. This in turn reduces the drag and work load of the power source with a great savings of time, effort and money. Unfortunately this method of drilling is not available to be used by a standard drill press, but only with a magnetic base type machine, this magnetic base will only work on iron or steel, therefore drilling of holes in any other material is impossible and because of the incapability of magnetic attachment, and with the wide it&#39;s magnetic base drilling holes into small pieces of metal also is not possible. These core bit cutting devices are not available in a useable form that can be used with any standard drill press and there is a need for such a tool in today&#39;s market. 
         [0012]    U.S. Pat. No. 5,782.591 issued Jul. 21, 1998 to Wilkinson, discloses a universal tool holding device that is attached to a rotating spindle device or drill press type machine that provides a tool holding arbor that does not become easily removed from said spindle. Stating that a drill press can only be used for cutting motions causing vertical forced to be applied to a work piece and tool. Also stating that a router bit, biscuit bit, or sanding stone could not be used effectively and force a person to buy expensive machinery. 
         [0013]    U.S. Pat. No. 4,570,952 issued Feb. 18,1986 to Hembigner; Thomas; Stranahan, Phillip, discloses a fluid collect chuck being a self contained oiling system that is confined to the inside realm of a drill or spindle chuck thus feeding the cutting tool and work materials with oil. 
         [0014]    U.S. Pat. No. 7,313,850 issued Jan. 1,2008 to Miller, discloses a compact economical, multi-axis, small parts machining tool and generally relates to the machining of small parts. 
         [0015]    U.S. Pat. No. 4,823,656 issued Apr. 25, 1989 to Weil, describes a holding Tool assembly for a lathe turret that is an automatically re-laughable tool holder for use with a variety of machine tools. 
         [0016]    U.S. Pat. No. 6,945,339 issued Sep. 20, 2005 to Hiranuma discussed a core drill device use to bore holes 
         [0017]    U.S. Pat. No. 6,929,434 issued Aug. 16, 2005 to Prokop, discloses a rotor cutting tool described as a drill with main cutting edges in a radial pattern. 
         [0018]    U.S. Pat. No. 5,803,678 issued Sep. 8, 1998 to Korb, Holston, Hampton discloses a core drill device with multiple teeth arranged in a circular pattern with a centering device attached. 
         [0019]    U.S. Pat. No. 4,664,565 issued May 12, 1987 to Palm, describes a drilling device with a core type tool in the chuck and a lever that creates the pressure installed onto the drilling device. 
         [0020]    U.S. Pat. No. 5,960,531 issued Oct. 5, 1999 to Mora, O&#39;banion, Palla, Welsh, shows a tool holding device mounted onto the work base of a standard drill press with an arrangement of tool locations. 
         [0021]    U.S. D497,622 S issued on Oct. 26, 2004 to Huang, describes a device attached to a standard drill press at the work base of the drill press. 
         [0022]    U.S. Pat. No. 5,765,455 issued Jun. 16, 1998 to Muhlnickel, describes a lathering device set on a horizontal plane with multiple controls for operating the machine. 
         [0023]    U.S. Pat. No. 5,316,418 issued May 31, 1994 to Masaaki, Miyanaga, discloses a core type drilling device with multiple locking bit and spring loaded centering pin and appears to be used in a vertical type spinning or drilling device. 
         [0024]    None of the above inventions and patents, taken either singly or in combination, is seen to describe the instant invention as claimed. 
       SUMMARY OF THE INVENTION 
       [0025]    The metal lathe (ML), core drill adaptor (CDA) and rate of cut device (ROCD) for use with a standard drill press, is a combination metal lathe (ML) and precision core drilling adaptor (CDA) with an automatic rate of cut device ((ROC) which may be used with most all standard drill presses. The lathe (ML) portion attaches to the drill press work base with two bolts. Position adjustments are partially made with these bolts. Other position requirements are accomplished with adjustments build into the drill press itself. The (CDA) portion is mounted into the chuck of the drill press and tightened with a chuck key. There also is an holding device that is incorporated into the inventions base, that holds the work material in a central location to prevent movement of the material and is designed to accept a Varity of diameters. The (ROCD) is a gas pressure operated device that is intended to advance or restrict the rate at which the material is lathed or drilled. These devices are attached to a standard drill press and in combination performs the following functions. 
         [0026]    The (ML) works in conjunction with the (ROCD) to turn or cut down any piece of round, rod shaped material to a specific size by rotating the cutter blade adjustment knob clockwise which drives the cutter blade into the work material while the material is rotating. Also the lathe cutter head possesses a cutter blade guide with attached springs which are anchored to the main cutting head to overcome vibration and chatter produced while lathing hard materials and also makes the cutter blade easily adjustable. There are four adjustable set screws on either side of the cutting blade to prevent a rolling motion and lost motion of the blade while letting the blade move free laterally. The entire cutter head is also offset at a 5 deg angle to produce a better cutting angel and to help reduce vibration. The (ROCD) may be adjusted to force the chuck portion of the drill press to descend vertically along with the material that is being worked, thus causing a longitudinal cut to be made in the steel or other material while the rate of speed is controlled by a restrictor cylinder with adjustment valve. A single full 360 deg. rotation of the adjustment knob, clockwise, on the lathe will advance the cut approximately 0.060 of an inch in latitude, and has a capacity to cut ½″ or 0.500 of an inch in depth. The longitude of the cut being a maximum of about 6″ at a controlled rate. The material or round rod may be chucked into the drill press to produce the rotation necessary to cut the material or the material may be held in the (CDA). 
         [0027]    A standard drill press usually has a maximum of ⅝″ material capacity at the chuck so the (CDA), having a variety of size capacities, is necessary when turning materials larger than the capacity of the drill press chuck. The core drilling process produces a byproduct slug bushing that is very useful around the shop when used as a spacer bushing, and the (CDA) may be used as a tool to produce this product. The (CDA) also has a spring loaded knock out pin for the extraction of the waste plug when drilling of the hole is complete. 
         [0028]    Also, the (CDA) supplies the work material with oil and coolant fluid through the attachment of an oil and coolant device, and supplies necessary lubricant to keep the material and tools from being overheated while being lathed or drilled. This is especially true with stainless steel material being turned or drilled since stainless steel is very difficult to drill or lathe when it is heated up. The (CDA) has a tank mounted onto it&#39;s shaft that rotates with the device and feeds the material with coolant and oil thru a system of holes and slots inside the (CDA), and while working with stainless steel also feeds the work material with a combination of ice water, alcohol, and oil at 33 deg. Fahrenheit. When full of fluid the oil and coolant tank also provides the extra function of acting as a harmonic balancing device that helps overcome the natural vibration or chatter while drilling and lathing is in progress. 
         [0029]    Accordingly, it is a principal object of the invention to provide a combination metal lathing, hole drilling adaptor device and rate of cut device with practical functions and with bushing making capabilities. 
         [0030]    It is a further object of the invention to provide a plurality of a drilling, lathing, and (ROC) device that is capable of attaching to most all standard drill presses on the market today. 
         [0031]    It is a further object of the invention to provide components in the invention to enhance safety, durability, efficiency and cost effective machining and lathing at a reasonable cost to the owner. 
         [0032]    It is an object of the invention to provide improved elements and arrangements thereof in an apparatus for the purpose described which is inexpensive, dependable and fully effective in accomplishing its intended purpose. 
         [0000]    These and other objects of the present invention will become readily apparent upon further review of the following specifications and drawing. 
     
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         [0033]      FIG. 1  is front environmental, perspective view of a metal lathe  100  &amp;  200  and core drill adaptor  300  with oil and coolant tank  310 , with a rate of cut device  400 , which in whole is generally shown as  1000  in the drawings, being shown attached to a standard drill press  600 . 
           [0034]      FIG. 1A  is an front environmental view of the metal lathe  100  &amp; 200 , oil tank  310  and core drill adaptor  300  showing related parts of the invention. 
           [0035]      FIG. 1B  is an top view  100 &amp; 200  and side view  100 &amp; 200  of the metal lathe portion of the invention, showing related component parts. 
           [0036]      FIG. 1C  is an exploded view of the cutter head assembly  200  and the lathe  100 &amp; 200  portion of the device and all the related parts. 
           [0037]      FIG. 1D  is an environmental view showing the invention  1000  including the rate of cut device  400  with all of its related component parts. 
           [0038]      FIG. 1E  shows the rate of cut  400  device seen in it&#39;s motion of work. 
           [0039]      FIG. 1F  shows the all of the component parts of the rate of cut device  400 . 
           [0040]      FIG. 2  is an environmental view that shows the core drill adaptor  300 &amp; 310  with a core drill  54  cutting device in the core drill adaptor chuck  24  with work material  700 , shown expelling the related waste plug  53 , also shows all related parts for the core drill adaptor  300 &amp; 310 . 
           [0041]      FIG. 2A  is and exploded view of the core drill adaptor  300  without the oil and coolant tank. All related parts are shown for the core drill adaptor  300 only. 
           [0042]      FIG. 2B  is an exploded view of the oil and coolant tank  310  and all it&#39;s related parts. 
       
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
       [0043]    The present invention is a metal lathe (ML)  100  &amp;  200 , core drill adaptor  300  and rate of cut device (ROC)  400  being combined as  1000  is shown in  FIG. 1  with a rate of cut device (ROC)  400  and a oil and coolant device  310  shown attached to a standard drill press  600  showing a drill press chuck  620  holding the core drill adaptor (CDA)  300  with the oil and coolant device  310  while the metal lathe (M)  100 &amp;  200  is shown in motion turning work material  700 . The metal lathe (ML)  100 &amp; 200  is shown mounted onto the drill press work base  610  with (2) two ⅝″ mounting bolts  51  and nuts  50 . 
         [0044]      FIG. 1A  is showing component parts of the metal lathe and core drill adaptor  1000 , and it&#39;s component parts being as follows, main shaft of the core drill  20  transfers the power of the drill press to the core (CDA)  300  which serves as a material holder also, top cover of the oil and coolant tank  21  is sealed to the main body of tank and provides access to refill the tank with fluid thru a hole in the top, main body of oil coolant tank  22  is the reservoir to hold oil and coolant fluid, bottom cover of the coolant tank  23  is sealed to the main tank to create water tight unit and has a partially drilled dimple that fits onto a roll pin ( 46 ) on the top of the coupler  24  to force rotation of tank  310  at the same rate as the shaft. The core drill bit  54  seen in  FIG. 2  is held by this material adaptor  24 , coupler, material adaptor  24  also holds material adaptor  38   a - 38   h  seen in  FIG. 2A , set screws  25  lock the main shaft  20  to the coupler  24  and also locks the core bit  54  and or work material  700  firmly into place in the coupler  24 . 
         [0045]      FIG. 1B  shows a top view of lathe  100  and all sub components of  100 &amp; 200 , attention should be paid to material holder  33  for clarity and to point out 360 deg rotation and multiple hole configuration, that allows a verity of materials to be used with the (CDA). The cutter head  100 , 200  is adjustable laterally on the base plate  32  using a series of holes allowing front to rear adjustments, these adjustments along with other adjustable parts of the drill press( 600 ) allows any position to made to work the invention. 
         [0046]    In  FIG. 1C  the threaded adjustment bracket  26  holds the adjustment knob  28  in an exact location, bracket hold down bolts  27  hold the bracket  26  in place to the cutter head  200  seen in FIG. F 1 , cutter blade adjustment bolt and knob  28  being turned clockwise asserts pressure onto the guide pin  49  shown on  FIG. 1C  which in turn asserts pressure onto the cutting blade  39  forcing blade into work material  700 , the main body of lath head  29  includes guide pin  49  in  FIG. 1C , with cutter blade  39  and set screws  29   a  that act as blade stabilizer, cutter head  29  also has threaded holes to allow attachment of knob bracket  26  with bolts  27  cutter head base plate  31  attaches to cutter head  29  with bolts  30 , cutter head assembly  200  attaches to base plate  32  with bolts  30 , material lock down adaptor  33  is attached to base plate  32  with bolts  30 , bolts  48  are for holding blade guide springs  36  in position, springs  36  are attach to the shaft of bolt under slight tension and as tension is increased while knob  28  is turned clockwise it thereby reduces vibration and provides stability of the cutter blade  39 , return spring  36  provides tension for cutter blade lock guide  37 , blade lock and guide  37  has single hole in the center to allow cutter blade to be adjusted and also has two threaded holes that are thru drilled to the center hole and taped for bolts  48  shown in  FIG. 1C  to lock down the cutter blade  39  in  FIG. 1C  after adjustment has bee made. 
         [0047]      FIG. 1D  is an environmental view of the (ML)  100   200  and core drill (CDA)  1000  with attention to the (ROCD)  400  showing mounting to a drill press at the chuck section  620  of drill press  600  indicating that the top portion of (ROC)  400  is mounted underneath the upper portion of the drill  600  and the bottom portion of  400  is on the top of the drill chuck  620   
         [0048]      FIG. 1E  in top view shows (ROCD)  400  in a closed or neutral position with the bottom view in a opening motion. 
         [0049]      FIG. 1F  shows an exploded top  57  and bottom  56  view of the (ROCD)  400  sub component parts being the upper arm  57  that is installed underneath the upper portion of the drill press  600  that provides an upper platform for this part, the lower arm  56  provides a lower platform for this component part and is positioned on top of the drill chuck  620  producing a downward force onto the drill chuck  620  in  FIG. 1D  the power provided for this downward motion is a gas type shock cylinder  58  with a push rod extending at length  58   a  with the rate of that extension  59   a  is regulated by a restrictor cylinder  59  with a control valve  61   a  to adjust the speed of the cut by turning knob  61  counterclockwise to allow opening of  400  or clockwise to stop all motion, see  FIG. 1E . 
         [0050]      FIG. 2  is an environmental view of the (CD)  300  and oil and coolant tank  310  in motion using a core drill  54  type device producing a machined hole in a plate  700  also producing a useable slug bushing  53  as a byproduct that may be used as bushing or spacers, thereby creating a useful product. The core drill  300  and oilier  310  may also be used at any attack angle by first partially drilling a pilot hole the exact same size as the centering pin  55  that is used in the core bit  54  this partially drilled hole also allows the spring loaded extraction pin  40  in  FIG. 2A  to act upon the centering pin of the cord drill  54 , drilling pilot hole allows larger holes to be drill into odd shapes such pipe without using a repetitive method of using several different standard drill bits until proper size hole is achieved thereby eliminating several steps of that accomplishment. 
         [0051]      FIG. 2A  is an exploded view of the core drill adaptor  300  showing the sub component parts being in the main core drill shaft  20  which has a thru hole  20   b  at the extreme top to receive a roll pin  46  that is the retainer for spring  41  that applies pressure onto knock out pin  40  that is restricted from coming out of the shaft  20  by partially a exposed roll pin  47  protruding to the inside hollow  20   c  of the shaft  20 , hole  20   a  is positioned to align with the lower inside of the oil and coolant tank just above the lower seal  42  and allows oil to continue into and down the main core drill shaft  20  onto the top of the core drill bit  54  core drill and when the pin  40  is compressed against the spring  41 oil is allowed to flow into the core drill bit  54  and onto the materials being drilled, or lathed while using the (CDA)  300  for turning purposes. Snap ring  44  fits into snap ring groove  20 d in main shaft  20  to hold parts in place, nylon washer  43  runs under snap ring to protect rubber O ring seal  42  below washer which restrains oil and coolant fluid from escaping from top of tank  310 . 
         [0052]    The (CDA) head  24  shows a roll pin  46  in the top extremity, this roll pin  46  inserts into a partially drill hole  23   a  shown in  FIG. 2B  being the bottom cover of reservoir  23  shown in  FIG. 2B  which allows rotation of the tank along with the (CDA)  300  this rotation causes the tank  310  portion as a unit to become a harmonic balancer to reduce vibration while the machine is working, also note that core (CDA) head  24  has a machined slot  46   a  cut into the inside to allow oil and coolant to reach the material  700  being worked, material adaptor  38   a  thru  38   h  allows a verity of round materials  700  to be lathed, the upper portion of the adaptor  38   a  - 38   h  is received into the bottom of (CDA) head  24  and has a verity of hole sizes at the opposed end of adaptor  38   a - 38   h  to hold materials. 
         [0053]      FIG.2B  is an exploded view of the oil and coolant tank  310  and it&#39;s sub component parts being tank top cap  21  with oil filler hole  21   a , main tank reservoir  22 , bottom tank cap  23   a  with partially drill hole  23   a  that accepts roll pin  46  seen in  FIG. 2A , assembly bolts  34 , top and bottom caps  21  &amp;  23  are applied with waterproof sealer then assembled with bolts  34 , and placed on top of core drill adaptor head  24 , with O ring  42  being between (CDA) head  24  and oil and coolant tank  310 , O ring  43  is between oil coolant tank and nylon washer  43 , then nylon washer  42  is between nylon washer  43  and snap ring  44 , then the snap ring is placed into the snap ring grove  20   a  above washer  43  the main shaft is inserted through assembly into the core drill adaptor head  24  and applying slight pressure the set screws  25   FIG. 2A  are then tightened,  20   d  thereby locking the parts of  300  and  310  into place creating a water tight seal.