Manufactured standard size dwellings having an integral base frame

The movable manufacturing facility brings standard size home building comprehensively within a controlled factory environment. The main structure of the movable manufacturing facility is sufficiently tall to allow assembly and movement of standard size homes within. Multiple independent production lines are established to each produce portions of the dwelling in the form of subassemblies. Finishes, cabinets, appliances, roofs, paint, etc. are installed in the partially completed dwellings prior to houses leaving the production floor. The movable manufacturing facility allows a standard size home under construction to be advanced via a transport element from one production line to the next until complete. The completed homes are subsequently transported on the transport element over a controlled access roadway to individual sites with pre-constructed foundations specifically designed to accept these standard size dwellings. The standard size house can be relocated from the transport element and placed directly onto the foundation. High capacity hoisting, such as clear span bridge cranes, are the key to material handling and transportation on the production lines in the movable manufacturing facility. A drive through alley large enough to accommodate semi-trucks with loaded trailers may be located within the main structure of the movable manufacturing facility.

DETAILED DESCRIPTION Glossary The terms used in this description are defined below to ensure that the proper import is ascribed to these terms and the usage of these terms is therefore unambiguous. Movable manufacturing facility—the facility described herein which is used to produce standard size dwellings in an enclosed, climate controlled environment, which can comprise one or more enclosed structures. Dwelling—a structure(s), typically comprising either a single family or multi-family home, which is used to house individuals. Standard size dwelling—a dwelling which constitutes a “normal” or full size dwelling, presently produced on-site by means of stick building technology. This dwelling has an extensive range of design and floor plan flexibility and includes both one and two story single or multi-family structures. Integral base frame—is that structural element which is integral to the base of a movable manufacturing facility produced standard size home, and provides the non-removable structural foundation upon which the vertical framing elements for the dwelling are attached. The integral base frame allows a standard size home to be created in its entirety and moved prior to being located on a permanent foundation. The integral base frame is typically provided at the base of the outside bearing perimeter walls, at interior load bearing walls, at selected other locations and may be contained within a floor subassembly. Manufactured home—a dwelling built in a factory environment and transportable over public highways to a building site. These homes include trailer homes, modular homes and dwellings comprising a plurality of limited size segments that are transported to the building site and which may be joined together. Panelized home—a dwelling wherein a significant number of components representing a portion of the dwelling are fabricated in a factory environment, then transported over public highways to the building site where they are assembled to form the basic structure. Stick-built home—a dwelling built in the traditional manner of using dimensional lumber as framing members to fabricate the dwelling on a foundation at the building site according to a set of architectural plans which have available an extensive range of design and floor plan flexibility and includes both one and two story structures. Manufacturing Facility Philosophy FIG. 1 illustrates a perspective view of the typical movable manufacturing facility 100 , which is erected at a field location, proximate to a new community that is being constructed. The movable manufacturing facility 100 can be disassembled and transported via truck, and/or ship and/or rail, typically in containers for overseas application, for erection proximate to a residential housing development site. FIG. 1 depicts a variety of the dwellings which can be constructed, including single family detached homes S as well as three-story multi-family units M, to illustrate the flexibility of the production capabilities of the movable manufacturing facility 100 . The multi-story dwellings M can be produced as a combination of a two-story component with an overall floor area of a standard size dwelling, with a similarly sized single story component produced for the third floor and placed on top of the two-story component by a crane. As shown in FIG. 1 , the movable manufacturing facility 100 is erected in close proximity to a large number of building sites B, some of which are shown in FIG. 1 as having residences sited thereon, others having foundations pre-constructed in place and others outlined as lots with no construction work having taken place. The movable manufacturing facility 100 in the preferred embodiment disclosed herein comprises a substantially rectangular building of sufficient size to encompass the dwelling production operation and of height to provide sufficient clearance for the constructed dwelling, which is typically 30′-40′ in height. The movable manufacturing facility has two large doorways in the end thereof 101 , 102 , with a first doorway 101 as shown in FIG. 1 being on the leftmost side of the building and used to provide transport element ingress to the movable manufacturing facility 100 . A second large exterior door 102 is located on the opposite side of the end wall of the building and is used to provide ingress to delivery vehicles which are providing the raw materials to a delivery alley, located within the movable manufacturing facility, for the assembly of the residential structures that takes place within the movable manufacturing facility 100 . An optional third door or doorway (not shown) can be provided substantially juxtaposed to the second door to enable a second delivery pathway for either truck traffic or rail traffic if a railroad siding is available at the site. Efficient bulk loads of materials necessary for the construction of homes are shown parked outside the movable manufacturing facility 100 in a temporary storage area ST prior to delivery into the delivery alley of the movable manufacturing facility 100 for unloading. An office structure 104 is also illustrated in a typical location on the right hand side of the movable manufacturing facility 100 although the office structure 104 need not be physically attached to the movable manufacturing facility 100 or even a permanent structure. The office structure 104 is where management, engineering, drafting, clerical and accounting personnel are located to support the manufacturing activities. As each lot in the development is sold and the home buyer defines the model of the home to be placed thereon with the specific customized features desired by the buyer, this information is forwarded to the office area 104 of the movable manufacturing facility 100 where a computerized control system schedules the construction of this dwelling, orders and coordinates the delivery of all necessary materials and, during the assembly phase of the dwelling, provides display information to the workers at each stage of the assembly process to indicate the specifics of this structure as defined by the initial user-provided order. By collapsing the linear structure of traditional residential housing production into a substantially volumetric process, and relocating the partially completed structure from one production line of the movable manufacturing facility 100 to another, a significant amount of flexibility in the scheduling of the work can be attained by intermixing finished, roughed-in and feature work into concurrently extant operations within the same structure. A completed standard size dwelling D can be seen in FIG. 1 departing from the movable manufacturing facility 100 through an exit door 105 ( FIG. 2 ) located on the far side of the movable manufacturing facility 100 . The exit door 105 is sized to enable the movement of the completed standard size dwelling D, mounted on the transport element to be moved from the movable manufacturing facility. FIG. 1 also illustrates a completed standard size dwelling D traversing a path through the community to a building site B that has a foundation in place and at which building site B a crane C awaits the arrival of the standard size dwelling D. When the standard size dwelling D reaches the building site B, the crane C is used to lift the completed standard size dwelling D off the transport element T and to place the structure D on the pre-existing foundation where it is secured in place. Alternatively, the pre-existing foundation can be a three-sided structure and the transport element can enter the basement area of the foundation where the transport element can be removed from under the completed dwelling as the dwelling is set on the foundation. The transport elements T shown in FIG. 1 typically comprise a “trailer” or “frame” that is equipped with a roadable apparatus, such as sufficient number of axles and wheels to support the weight of the completed standard size dwelling D. The bed of the trailer T is of extent great enough to securely support the completed standard size dwelling D, which is built in stages on the transport element T as the transport element T is moved from the ingress doorway 101 of the movable manufacturing facility 100 to the egress doorway. A tow vehicle, such as a tractor, is used to move the transport element T and the completed standard size dwelling D from the egress doorway of the movable manufacturing facility 100 to the building site B and thence to return the transport element T to a parking area adjacent the movable manufacturing facility 100 for use in a subsequent residential structure assembly. The community can be occupied in stages as the standard size dwellings are manufactured and sited. Public access to the community is typically selected at a location distant from the movable manufacturing facility 100 , such that homes are sited from this juncture incrementally to the movable manufacturing facility 100 . The movable manufacturing facility 100 makes use of temporary roadways R which are restricted from public use and are available to transport the completed standard size dwellings D from the movable manufacturing facility 100 to the building site B. As sections of the roadways R are filled with completed homes, these sections can be converted from restricted/controlled access construction use to public use. The siting of the movable manufacturing facility 100 is such in the particular environment illustrated in FIG. 1 that the completed standard size dwellings D traverse roads R internal to the development and therefore do not have to contend with existing public roadways with their size and weight limitations, power lines, bridges and existing traffic. It is also possible to erect the movable manufacturing facility 100 at a site that requires the use of existing public roads, which is feasible as long as the portions of the existing roadway that are used are free of obstructions and can be monopolized during the movement of a completed standard size dwelling D. Movable Manufacturing Facility Architecture The economic viability of the movable manufacturing facility 100 is a function of the efficiency with which it can produce the residential structures, since the efficiency must offset the cost of erecting the movable manufacturing facility 100 at a particular housing development site. It is obvious that the benefit afforded by this movable manufacturing facility 100 is a function of the number of building sites B, the incremental cost savings associated with each unit manufactured, and the speed with which these sites can be populated with residential structures. In addition, due to the speed of assembly of the residential structures using this facility, it is not inconceivable that the one movable manufacturing facility 100 can be shared among a plurality of builders, whose development projects are co-located or nearby in the same general location. The movable manufacturing facility 100 achieves its efficiency by collapsing the linear, mutually exclusive building trades operation of the prior art into an intensive volumetric focus in the residential structure assembly process. This difference in assembly philosophy as well as the use of hoisting elements that are used in the movable manufacturing facility 100 provide the efficiencies and “automation” that assist in making this project cost-effective. Furthermore, the unique integral base frame that is used as the underpinnings of each standard size dwelling D that is assembled not only enables the completed structure to be constructed, transported, and placed by a crane C but also provides a base for the standard size dwelling D that is of greater stability and rigidity than existing methods of manufacture. Finally, the movable manufacturing facility 100 , with its hoisting elements, enables the use of a variety of framing techniques and framing materials. These include western platform framing, balloon framing, the use of multi-story steel framing members and the use of full height shear panel construction techniques that are presently impractical to use in residential construction although they provide the benefits of increased structural integrity and reduced cost. Framing materials may include traditional dimension lumber, light gauge steel products, heavier red iron steel and other cold rolled steel sections. The movable manufacturing facility 100 is oriented as shown in the preferred embodiment in FIG. 2 which is a perspective view of the movable manufacturing facility 100 with the roof removed therefrom. FIG. 3 illustrates in plan view the layout of a typical movable manufacturing facility 100 , with icons pictured at the top of this figure to indicate to the reader the extent of completion of a standard size dwelling D within each production line P 1 -P 5 . In this regard, the first production line P 1 produces an integral base frame which is positioned on a transport element T. The second P 2 and third P 3 production lines build and subsequently relocate the preassembled panel subassemblies, including two-story high wall panels, onto the floor subassembly. The fourth production line P 4 produces and places a full size roof subassembly onto the partitions previously produced and installed in the partially completed standard size dwelling D. FIGS. 4 - 13 provide detailed plan views of the movable manufacturing facility 100 that is shown in perspective view in FIG. 2 . With reference to FIG. 2 and 3 , the preferred embodiment of the movable manufacturing facility 100 shows the use of a plurality of parallel oriented juxtaposed production lines P 1 -P 5 , each of which is used to create subassemblies and/or to provide warehousing of materials that are used in the construction process. Orthogonal to and aligned at one end of this plurality of production lines is a “delivery alley” DA through which the delivery vehicles pass to deliver the raw materials that are used in the standard size dwelling assembly process. The delivery alley DA typically extends the full length of the movable manufacturing facility 100 and is of sufficient dimensions that delivery vehicles can drive through the movable manufacturing facility 100 to park adjacent the production line which is the destination for the materials provided by the delivery vehicle. A hoisting element H* integral to that production line P* is then able to quickly offload the raw materials from the delivery vehicle and the delivery vehicle then exits the movable manufacturing facility 100 at an egress door 106 distal from the ingress door 102 through which it entered the movable manufacturing facility 100 . Juxtaposed to and orthogonal to the plurality of production lines P 1 -P 5 and at the end thereof opposite the delivery alley DA is a dwelling assembly alley HA wherein the raw materials and subassemblies produced in each production line P* are assembled in an integrated manner into the standard size dwelling D. Each production line P* takes raw materials and either produces subassemblies that are lifted by the hoisting elements H* onto the standard size dwelling D that is being assembled or provides a warehousing capability for the various raw materials that are used to create the standard size dwelling D. The specific details of each production line P* are described below as an illustrative embodiment with the specific implementation of each production line P* being a matter of design choice and somewhat dictated by the architecture of the standard size dwellings D that are being assembled in the movable manufacturing facility 100 . Suffice it to say that each production line P* is responsible for the complete construction of a volumetric section of the standard size dwelling D or is used to complete the finished work within the standard size dwelling D that has been largely completed at the prior stages of the construction process. It is evident that many variations of the layout illustrated in FIGS. 1 - 3 can be implemented, using the manufacturing techniques taught herein. For example, the production lines may be construed as encompassing the section of the delivery alley adjacent to the production line and/or the production lines may be construed as encompassing the section of the dwelling assembly alley adjacent to the production line. The production lines may not be parallel oriented, and the partially completed structure can exit a main section of the manufacturing facility to another assembly building, or another section of the manufacturing facility to have work performed thereon. Materials storage areas can also be positioned across the delivery alley, outside the manufacturing facility or in another dedicated portion of the manufacturing facility. These alternative configurations are simply obvious variants of the basic configuration disclosed herein. In the first production line P 1 , a floor subassembly is produced and loaded on the transport element T. The floor subassembly includes an integral base frame which strengthens the floor subassembly to allow for the construction, transportation and setting of the standard size dwelling D on its foundation. In the second P 2 and third P 3 production lines, continuing to the right from the first production line P 1 , large wall panels are framed, sheet rocked, finished, painted and inventoried on racks prior to installation on the appropriate floor subassembly. Windows and doors are installed in the panelized wall subassemblies in the second P 2 and third P 3 production line. In the fourth production line P 4 , full size roof subassemblies are fabricated on the floor of the movable manufacturing facility 100 and then hoisted and placed on the framed partially completed standard size dwelling D by the bridge crane H 4 . Finish work, including panel joint finishing, cabinets, floor covering, fixtures, etc., begins in the second production line P 2 , continues through the fourth production line P 4 and is the primary activity implemented in the fifth production line P 5 . A strategic accomplishment of the movable manufacturing facility 100 is to provide a large scale factory in which multiple production lines P* exist and which can be utilized to produce incremental aspects of a standard size dwelling D. Some fundamental considerations are that the movable manufacturing facility 100 makes bulk materials available to all of the production lines P*, which capability is provided in the embodiment shown herein by the delivery alley DA, which serves all the production lines P*. A second consideration is that a plurality of production lines P* are used, each of which produces a distinct increment of the standard size dwelling D. A dwelling assembly alley HA is used to relocate the partially completed standard size dwelling D from one production line P* to the next sequential production line P* typically via the transport element T on which the standard size dwelling is constructed. A third consideration is the use of high capacity hoisting elements H* in the production lines P* to allow for the unloading and movement of bulk materials and for the construction and handling of large subassemblies, including the installation of the subassemblies in a partially completed standard size dwelling D. Hoisting Elements Efficiency of operation of the movable manufacturing facility 100 is in part achieved through the use of hoisting elements H* that enable the movement of large volumes of materials or large subassemblies that are efficiently produced within the movable manufacturing facility 100 . The hoisting elements H* minimize the hand labor since they are used to pick and place raw materials, individual subassemblies, and to pre-stock materials, such as cabinets, flooring, plumbing fixtures, in the partially completed standard size dwellings. As can be seen from the perspective view of FIG. 2 , the movable manufacturing facility 100 in the preferred embodiment is housed within a steel frame building that uses a plurality of steel bents to support the roof as well as the hoisting elements H* that are part of the movable manufacturing facility 100 . The bents are aligned with the boundaries of each production line P* and are of sufficient structural integrity to also support the hoisting elements H* and the loads which they service. The bents are typically supported by a plurality of columns, located at regular intervals along the length of the bent, with a free span being provided across the width of the dwelling assembly alley HA as well as the delivery alley DA. For example, the dwelling assembly alley HA must be dimensioned to accommodate the full extent of the completely assembled standard size dwelling D. These dimensions would typically be a 30-40 foot floor to bent clearance and a support column to support column free span of approximately 60 feet. The steel bent construction specifics of such a building are well known and are not discussed in detail herein. The rails that support the hoisting elements H* are attached to the columns and can also be hung from the bents in the clear span area to provide support for the rails where the span between columns is greater than otherwise would be allowable for the load bearing capacity of the rails. There can be multiple hoisting elements H* in each production line P*, with the hoisting capacity of these hoisting elements H* being individually sized to the task being performed in the associated production line P*. The area of coverage by the hoisting elements H* within a production line P* can overlap so that each hoisting element H* has a sufficient range of travel to provide the greatest flexibility in use in that production line P*, thereby enabling tasks to be performed by one hoisting element when the other hoisting element is occupied performing another task. FIG. 15 illustrates in perspective view the implementation of a typical hoisting element H* that is used in a production line of the movable manufacturing facility 100 . The hoisting element H* can be any of a number of such devices known for the purpose, such as but not limited to: boom type cranes, gantry cranes, hydraulic cranes, and traveling floor cranes mounted on wheels or rails. For the preferred embodiment of the first production line P 1 of the movable manufacturing facility 100 disclosed herein the hoisting element is shown to be an overhead traveling crane OC. The rails OCR 1 , OCR 2 on which the overhead crane OC ride are directly connected to the columns BC which support the two bents BB that delimit the boundaries of a production line (for example, fourth production line P 4 ) of the movable manufacturing facility 100 and extend substantially the full length of the two bents BB, so that the crane OC can traverse the entirety of the production line P 4 as well as either or both of the two adjoining alleys, delivery alley DA, dwelling assembly alley HA. Another one of the many possible embodiments of the enclosure is the use of a fabric type of enclosure which fabric is stretched over a framework to enclose the work area. In this application, there is not a need for bents and the hoisting elements H* can be free standing elements or connected to the columns. First Production Line FIG. 4 illustrates a typical plan view of the first production line of the movable manufacturing facility 100 , while FIG. 9 illustrates both a plan view and a side view of a typical segment of the standard size dwelling D that is assembled in the dwelling assembly alley HA as a result of the work performed in the first production line P 1 of the movable manufacturing facility 100 . The first production line P 1 of the movable manufacturing facility 100 is primarily used to create the floor subassembly, which as a minimum includes the residential integral base frame, and can also include the floor joist assembly and subflooring. The floor platform subassemblies are then typically placed on to the transport element T that is positioned in the dwelling assembly alley HA juxtaposed to one end of the first production line P 1 of the movable manufacturing facility 100 . The equipment and work areas of the first production line P 1 comprise a number of raw material processing stages. In particular, standard lengths of the integral base frame beams and floor joists are delivered by truck or rail to the delivery alley DA and the hoisting element H 1 of the first production line P 1 moves these raw materials from the delivery vehicle to storage bins or racks 401 , 402 located within the first production line P 1 . For example, 40 foot lengths of integral base frame beams are noted in FIG. 4 , although other lengths as required can be used. Associated with each storage area 401 , 402 is a saw station 403 , 404 that is used to cut where necessary the raw material into the required lengths. The cut stock is then stockpiled in finished material storage racks 405 , 406 . For example, the cut beams are stored in cut frame storage 405 while the cut floor joists are placed into the finished floor joist storage 406 . Preferably, the amount of cutting is kept to a minimum by the pre-architected layout of the first floor subflooring and integral base frame. An integral base frame assembly production line 411 is included in the first production line P 1 and is described in additional detail below. The partially assembled integral base frames are transported from the integral base frame assembly production line 411 by the overhead crane H 1 and placed on the first stage floor platform assembly 412 table. The floor joist table 413 is used to create a subassembly of floor joists, with insulation, wiring, plumbing installed therein and the overlay of floor sheathing, obtained from the floor sheathing storage rack 414 , installed thereon. The overhead crane H 1 transports floor joist subassemblies from the floor joist table 413 to the first stage floor platform assembly table 412 to be placed within the partially assembled frame. The frames, with floor joist subassemblies installed therein are then “capped” and transported by the overhead crane H 1 to the dwelling assembly alley HA where they are placed on the transport element T in a predetermined position and interconnected with other (if any) frames produced to create a complete floor subassembly. Transport Element FIG. 14 illustrates in perspective view a typical transport element T that is used to support the standard size dwelling D (as shown in FIG. 14 ) as it is assembled in the movable manufacturing facility 100 and transported from this facility to a permanent site. The transport element T, as shown in a typical embodiment in FIG. 14 , comprises a rectangular frame formed of a plurality of rigid interconnected supporting members T 1 -T 5 . A number of the supporting members T 1 -T 4 form the substantially rectangular exterior frame and the remaining supporting member T 5 forms an interior supporting member. A standard size dwelling is shown in dotted line outline form placed on the transport element T to illustrate the size and extent of the transport element T with respect to a standard size dwelling. The typical supporting members T 1 -T 5 are shown as steel I-beams of sufficient capacity to support the full size dwelling. Three of the supporting members T 1 , T 3 , T 5 are shown equipped with wheel assemblies W to thereby enable the transport element T to be repositioned within the movable manufacturing facility 100 and thence to the building site for the standard size dwelling placed on the transport element. FIG. 14 also illustrates a towing hitch PH affixed to one end of the substantially rectangular frame formed of supporting members T 1 -T 5 to thereby enable a tow vehicle to connect to the transport element T and perform the transportation function. It is obvious that a number of alternative embodiments of the transport element T can be devised, such as having axles span the entire width of the transport element, as a function of the performance characteristics required for the specific implementation of the movable manufacturing facility 100 as well as the nature of the path that the transport element may take to the building site. It is also envisioned that the wheel assemblies W can be made removable from the frame formed of supporting members T 1 -T 5 . Thus, it is possible that the transport element can comprise the integral base frame FF of the structure itself, with the wheel assemblies W initially installed thereto to facilitate the movement of the standard size dwelling through the manufacturing process and delivery to the building site. Once installed at the building site, the standard size dwelling no longer requires the wheel assemblies W, and these can be removed for reuse in the manufacturing of another standard size dwelling. Also, the wheel assemblies W can be interchanged so that a separate set is used to move the standard size dwelling D to the building site. The wheel assemblies W may also be dispensed with in the factory if the foundation frame is used as part of a rail system. Integral Base Frame Architecture The integral base frame is that structural element which is integral to the base of a movable manufacturing facility produced standard size home, and provides the non-removable structural foundation upon which the vertical framing elements for the dwelling are attached. The integral base frame allows a standard size home to be created in its entirety and moved prior to being located on a permanent foundation. The integral base frame is typically provided at the base of the outside bearing perimeter walls, at interior load bearing walls, at selected other locations and may be contained within a floor subassembly. The function of the integral base frame can be seen when an existing home is moved from one location to another. In this situation, the existing home is gently lifted off its permanent foundation, usually by means of jacks. At this point, a base frame is temporarily inserted under the perimeter and load bearing interior walls to support them thereby permitting the entire structure to be carefully moved on to two support beams without the benefit of a permanent foundation. In the movable manufacturing facility, the standard size home is built with an integral base frame to enable the simple relocation of the partially built home within the movable manufacturing facility and eventually to a permanent foundation at the home site. The home can also be later moved without significant complexity, since the structure incorporates the integral base frame and can be relocated to another permanent foundation. Thus, the standard size home built in the movable manufacturing facility is substantially built “in space” rather than “in place”. For this to be possible, the initial step in the manufacturing process requires the use of the integral base frame which establishes a solid point of beginning and provides a dimensionally stable foundation. The integral base frame thereby provides structural integrity to the base of the movable manufacturing facility manufactured home, which enables the home to exist in space without continuous additional support to enable the standard size home to be manufactured, transported and placed on a permanent foundation as an integral, self-supporting and rigidized structure. The integral base frame distributes vertical loads downward from the wall sections to the transport element and upward from the transport element to the load bearing walls. The integral base frame also provides a dimensionally stable flat surface on which the wall elements can be added and can be manufactured from light gauge steel, wood, concrete, plastic, or other suitable materials. Integral Base Frame Assembly FIG. 16 illustrates in perspective view a typical architecture of the integral base frame assembly FF that is used in the standard size dwelling manufacturing process. In particular, the integral base frame FF is the element that circumscribes the entirety of the standard size dwelling D and provides the support and stability to enable the entire completed structure to be relocated by a crane C from a transport element T to the preassembled foundation at the building lot B. In order to accomplish this function, the integral base frame FF comprises a set of steel beams, such as I-beams, that are assembled into a framework that conforms to the foundation. The I-beams, as shown in FIG. 16 , are assembled by welding together to form a framework into which a floor joist assembly FJ can be fabricated. This process is effected by the overhead crane H 1 transporting the partially assembled integral base frame FF from the frame assembly area 411 to the first stage floor platform assembly table 411 . The overhead crane H 1 then lifts a completed floor joist subassembly, from the floor joist table 413 and relocates the subassembly to the first stage floor platform assembly table 412 where it is inserted into the partially assembled integral base frame FF. Additional precut I-beams are then transported by the overhead crane H 1 from the storage racks 405 to the first stage floor platform assembly table 412 where they are positioned to cap the open ends of the partially assembled integral base frame FF and complete an entire section of the floor subassembly. The joists FJ are secured to the integral base frame FF via welds at points where one of the steel joists FJ meet a corresponding point of the integral base frame FF. The dimensions of the integral base frame FF and the joists FJ are preferably selected so that the joists snugly fit within the “pocket” created by the cross-section of the integral base frame elements and the capped integral base frame FF creates a resultant dimensionally stable and rigid floor subassembly. The floor sheathing FS, as shown in FIG. 16 , is placed to expose a length of the joists FJ sufficient to fit within the pocket provided by the integral base frame FF, so the assembled floor subassembly does not include any voids between the floor sheathing FS and the integral base frame FF. The floor sheathing FS can be of dimensions greater than typically used since the hoisting element H 1 can be used to transport these materials. Second Production Line FIG. 5 illustrates a typical plan view of the second production line P 2 of the movable manufacturing facility 100 , while FIG. 10 illustrates both a plan view and a side view of a typical segment of the standard size dwelling D that is assembled in the dwelling assembly alley HA as a result of the work performed in the second production line P 2 of the movable manufacturing facility 100 . The second production line P 2 of the movable manufacturing facility 100 is primarily used to fabricate the exterior walls and first floor interior walls of the standard size dwelling D. The equipment and work areas of the second production line P 2 comprise at least one raw material processing stage. The raw materials used to perform the framing function can be selected from the class of elements including, but not limited to: wood, steel, composition materials. For the purpose of illustrating the operation of the preferred embodiment of the movable manufacturing facility 100 , steel is described as the element used for framing the interior and exterior walls. In particular, standard lengths of raw steel framing members are delivered by truck or rail to the delivery alley DA and the hoisting element H 2 (or multiple hoisting elements) of the second production line P 2 moves these raw materials from the delivery vehicle to storage bins or racks 501 , 506 , 507 located within the second production line P 2 . For example, 20 foot lengths of framing members can be used, although other lengths as required can be used. Associated with each storage area 501 is a saw station 502 that is used to cut where necessary the raw material into the required lengths. The cut stock is then stockpiled in finished material storage racks 503 . Preferably, the amount of cutting is kept to a minimum by the pre-architected layout of the exterior walls and first floor interior walls. A wall panel assembly production line is included in the second production line P 2 . At least one stud table 504 , 505 is provided to create a subassembly of an exterior or interior wall, with insulation, wiring, plumbing, windows, doors installed therein as desired. The overhead crane H 2 transports wall panel assemblies from the stud table 504 , 505 to the work platform 509 where movable scaffolding is used to enable the workers to finish the wall subassemblies. The movable scaffolding enables the workers to move with respect to the wall subassembly and tape drywall seams, finish the drywall, and paint the wall subassembly. The finished wall subassembly is then relocated to the storage racks 508 of the second production line P 2 (as also shown in perspective view on the left side of FIG. 15 ) or directly placed in position and secured in the dwelling D being assembled in the dwelling assembly alley HA, as also shown in part in FIG. 16 . If the premanufactured panels are first stored in the storage racks 508 , the premanufactured panels are later transported by the overhead crane H 2 to the dwelling assembly alley HA where they are placed on the floor subassembly, which was installed on the transport element T at the first production line P 1 of the movable manufacturing facility 100 , in a predetermined position and interconnected with other wall subassemblies to create a complete framed and subfloored structure assembly. The exterior finish may not be present on the exterior walls to thereby enable the workers to access the various utilities that are run through the walls. As wall segments are joined, the utilities pre-installed therein must be interconnected, and this can be done via access from the exterior (or top) of the wall, rather than the interior as is presently done. The multitude of subsystems that comprise a dwelling are treated as an integrated system with the progression of construction of each subsystem coordinated with the various other systems to ensure coherent construction of the dwelling in an efficient manner. At this juncture, to increase the speed of manufacture, reduce the handling of materials, cabinet assemblies, doors, windows, floor coverings etc. (from rack 506 ) are prestocked in the shell of the standard size dwelling D. The prestocking enables the workers at later stages of assembly to have the necessary materials already situated within the standard size dwelling D, via crane H*, to enable the workers to perform finish work concurrently with the second story and the roof being assembled and installed on the standard size dwelling D. The materials, such as drywall, can be of dimensions greater than typically used since the hoisting element H 2 can be used to transport these materials, rather than depending on the workers to handle each piece individually, with the size of the materials being dictated by the physical limitations of the workers. Third Production Line P 3 FIG. 6 illustrates a plan view of a typical third production line P 3 of the movable manufacturing facility 100 , while FIG. 11 illustrates both a plan view and a side view of a typical segment of the standard size dwelling D that is assembled in the dwelling assembly alley HA as a result of the work performed in the third production line P 3 of the movable manufacturing facility 100 . The third production line P 3 is predicated on the presumption that the standard size dwelling being manufactured is a two story dwelling. Obviously, if one story dwellings are being manufactured, the third production line P 3 as described herein may be deemed to be unnecessary. The equipment and work areas of the third production line P 3 are similar to those of the second production line P 2 and comprise at least one raw material processing stage. In particular, standard lengths of raw steel framing members are delivered by truck or rail to the delivery alley DA and the hoisting element H 3 of the third production line P 3 moves these raw materials from the delivery vehicle to storage bins or racks 601 , 606 , 607 located within the third production line P 3 . For example, 20 foot lengths of framing members can be used, although other lengths as required can be used. Associated with each storage area is a saw station 602 that is used to cut where necessary the raw material into the required lengths. The cut stock is then stockpiled in finished material storage racks 603 . Preferably, the amount of cutting is kept to a minimum by the pre-architected layout of the exterior walls and second floor interior walls. A floor and wall panel assembly production line is included in the third production line P 3 . At least one stud table 604 , 605 is provided to create a subassembly of the first floor ceiling/second story floor, exterior or interior walls, with insulation, wiring, plumbing installed therein. The overhead crane H 3 transports floor and wall panel assemblies from the stud table 604 , 605 to the work platform 609 where movable scaffolding is used to enable the workers to finish the wall subassemblies. The movable scaffolding enables the workers to move with respect to the wall subassembly and tape drywall seams, finish the drywall, and paint the wall subassembly. The finished wall subassembly is then relocated to the storage racks 608 of the third production line P 3 (as shown in perspective view on the left of FIG. 15 ) or directly placed in position in the dwelling being assembled in the dwelling assembly alley HA. If the premanufactured wall panels are first stored in the storage racks 608 , the premanufactured wall panels are then transported by the overhead crane H 3 to the dwelling assembly alley HA where they are placed on the preassembled first floor, which was installed on the transport element T at the second production line P 2 of the movable manufacturing facility 100 , in a predetermined position and interconnected with the exterior and first story interior wall panels to create a completely enclosed framed and subfloored single story structure assembly. The second floor premanufactured wall panels are then transported by the overhead crane H 3 to the dwelling assembly alley HA where they are placed on the framed single story structure to complete the framing of the second story. At this juncture, to reduce the labor required, cabinet assemblies, doors, windows, etc. (in rack 606 ) are “prestocked in the second story of the shell of the standard size dwelling D. The prestocking enables the workers at later stages of assembly to have the necessary materials already situated within the standard size dwelling D, via crane H 3 , to enable the workers to perform finish work concurrently with the roof being assembled and installed on the standard size dwelling D. The materials, such as drywall, can be of dimensions greater than typically used since the hoisting element H 3 can be used to transport these materials, rather than depending on the workers to handle each piece individually, with the size of the materials being dictated by the physical limitations of the workers. Fourth Production Line P 4 FIG. 7 illustrates a plan view of a typical fourth production line P 4 of the movable manufacturing facility 100 , while FIG. 12 illustrates both a plan view and a side view of the segment of the standard size dwelling D that is assembled in the dwelling assembly alley HA as a result of the work performed in the fourth production line P 4 of the movable manufacturing facility 100 . In addition, FIG. 15 illustrates an end view of a typical fourth production line P 4 . The fourth production line P 4 of the movable manufacturing facility 100 is primarily used to fabricate, relocate and install the roof subassembly of the standard size dwelling D. The equipment and work areas of the fourth production line P 4 comprise at least one raw material processing stage. In particular, standard lengths of raw steel framing members and roof truss members are delivered by truck or rail to the delivery alley DA and the hoisting element H 4 of the fourth production line P 4 moves these raw materials from the delivery vehicle to storage bins or racks 701 located within the fourth production line P 4 . For example, 20 foot lengths of framing members can be used, although other lengths as required can be used. Associated with each storage area is a saw station 702 that is used to cut where necessary the raw material into the required lengths. The cut stock is then stockpiled in finished material storage racks 703 . Preferably, the amount of cutting is kept to a minimum by the pre-architected layout of the roof. A roof subassembly production line is included in the fourth production line P 4 . A roof truss jig 704 is provided to enable the workers to produce the required roof trusses which are then moved by hoisting element H 4 to the roof subassembly fabrication areas 707 to create an entire roof subassembly. The drywall materials are retrieved from drywall storage area 705 and positioned in the pattern that is required for the finished area of the ceiling that lies under the roof. The drywall is then adhesively secured to the roof trusses when these elements are positioned on the drywall that is in place on the roof subassembly fabrication areas 707 . The roof construction then proceeds with the required roof sheathing, etc until the entire roof subassembly is completed. The roof subassembly is then hoisted into place on top of the framed shell of the two story structure and thus must be constructed somewhat differently from existing roof designs. In particular, since the crane H 4 “picks and places” the entire roof subassembly, the trusses used to fabricate the roof subassembly must be designed to support both dynamic and static traditional roof loads, supported by the frame of the house, as well as to be capable of supporting the weight of the assembled roof when supported from the ridge line as it is being hoisted. Therefore, the roof trusses must be designed to account for compression and tension loads in both directions. The overhead crane H 4 (termed OC in FIG. 15 ) transports the completed roof subassembly from the roof subassembly fabrication areas 707 to the dwelling assembly alley HA where it is placed on the framed structure, which was installed on the transport element T at the first P 1 through third P 3 production lines of the movable manufacturing facility 100 , in a predetermined position and interconnected with the interior and exterior wall production lines to create a complete enclosed standard size dwelling D. The fabrication of the roof subassembly on the roof subassembly fabrication areas 707 results in a reduced assembly time, since working on ground level is easier, safer and more efficient than constructing the roof in place on the framed two story dwelling as is presently done in the stick building technology. Fifth Production Line P 5 FIG. 8 illustrates a plan view of a typical fifth production line P 5 of the movable manufacturing facility 100 , while FIG. 13 illustrates both a plan view and a side view of a typical segment of the standard size dwelling D that is assembled in the dwelling assembly alley HA as a result of the work performed in the fifth production line P 5 of the movable manufacturing facility 100 . In particular, the fifth production line P 5 of the movable manufacturing facility 100 is used to perform all remaining finish work that was not completed in the previous manufacturing stages. In this regard, the fifth production line P 5 may not strictly be termed a production line since no subassembly is produced therein, but instead, in the preferred embodiment of the movable manufacturing facility 100 , it is used as a storage and staging area where the prestocking materials, such as floor covering, are stored and cut to size for transportation to the appropriate production line for insertion into the partially competed dwelling located in the dwelling assembly alley HA, as described above. Therefore, the finish work includes any remaining painting, installation of plumbing fixtures, electrical outlets, trim work, appliance installation, etc. Additional exterior work that was not previously completed is now done, such as gutters, roofing, flashing, exterior trim painting, etc. The materials for these activities can be stored in a plurality of rows of high bay storage racks 801 - 804 as shown in perspective view on the right hand side of FIG. 15 . The materials handled in the fifth production line P 5 of the movable manufacturing facility 100 may be more adapted to processing using a forklift truck rather than an overhead crane H*. In addition, the delivery alley DA may include a number of external overhead doors in traditional loading dock style to enable the rapid unloading of many enclosed delivery vehicles, each of which may deliver a small quantity of materials, when compared to the deliveries processed at the other production lines P 1 -P 4 of the movable manufacturing facility 100 . Furthermore, the dwelling assembly alley HA may not be contiguous with the fifth production line P 5 , since there is not necessarily any relocation of large bundles of materials to the dwelling at this stage of production. Therefore, the dwelling can even be moved at this juncture to a section of the building remote from the production lines P 1 -P 5 , or “off-site” external to the building to another enclosed structure, or even in an open area outside. Additional Features It is evident that the delivery alley DA can include a storage area, located across the delivery alley DA from the production lines. The materials storage is a function of the proportion of just-in-time deliveries that can be scheduled for the movable manufacturing facility 100 . It is evident that the storage areas must be sized as a function of the materials fragility, volume of construction activity, and delays expected in the delivery of raw materials. Thus, weather impervious materials, such as roofing material and structural steel can be stored external to the movable manufacturing facility and moved in place into the production lines by forklift or even a hoisting element that is integral to the delivery alley DA. Furthermore, the fifth production line P 5 includes a flooring storage area in the above-described embodiment, and the flooring material is cut and then transported by forklift to the second and/or third production lines P 2 , P 3 as required to preload the first and second floor of the partially completed dwelling prior to the respective ceilings being placed on the partially completed dwelling, thereby enclosing that particular volume of the dwelling. The use of the integral hoisting elements H* also enables the use of atypical size and weight materials. The sheet rock, roof sheathing, exterior wall sheathing and subflooring can be in 6′*16′ or 8′*16′ sizes, which are impossible for workers to handle by hand, but are well within the capability of the hoisting elements. The use of this size materials minimizes the number of seams in the wall, ceiling and floor subassemblies, thereby reducing finishing labor and providing additional rigidity to the resultant dwelling. Furthermore, two-story wall subassemblies can be manufactured using the steel framing materials described herein. FIG. 17 illustrates a perspective view of a typical two-story wall panel subassembly that can be manufactured using the facilities described herein. In particular, the two-story wall panel subassembly is constructed to be placed on and secured to the floor subassembly, and is preconfigured to receive the joists for the second floor flooring. As shown in this figure, the entire two-story subassembly can be hoisted and transported as an integral unit. Summary The benefits of the movable manufacturing facility 100 are that there is concurrent and/or overlapping construction of major subassemblies of the standard size dwelling D in the various production lines P 1 -P 5 of the movable manufacturing facility 100 . The completed subassemblies from production lines P 1 -P 4 are then assembled in the dwelling assembly alley HA in assembly line fashion as the standard size dwelling D reaches that production line P* of the movable manufacturing facility 100 . For example, the second floor walls can be manufactured in the third production line P 3 of the movable manufacturing facility 100 while the floor subassembly and first floor walls are being built and assembled in the first and second production lines P 1 , P 2 of the movable manufacturing facility 100 . The second story ceiling can be manufactured in the fourth production line P 4 of the movable manufacturing facility 100 . In addition, the roof can be concurrently under way or initiated in the fourth production line P 4 of the movable manufacturing facility 100 while the standard size dwelling D is located at the third production line P 3 of the movable manufacturing facility 100 for installation of the second story floor and walls. The temporal coordination of the various stages of work can be dynamically adjusted as a function of material availability as well as construction progress at previous and subsequent production lines of the movable manufacturing facility 100 . The shear panels can be manufactured and stockpiled at the second P 2 and third P 3 production lines of the movable manufacturing facility 100 , and the workers can move between production lines P* as the changing needs of the assembly process dictate. In addition, there are no delays occasioned by ambient weather conditions, and significantly reduced waste due to the “automated” method of manufacturing. The standard size dwellings produced in this movable manufacturing facility represent significant advances from what is produced by the housing industry today. It is achieved by collapsing the traditional sequential building process into a small finite number of steps, each of which is implemented in a predetermined production line of the facility somewhat independent of, yet in close coordination with, the building activity that takes place in the other production lines of the facility. This allows, for instance, a house's roof and floor to be assembled at the same time, yet on different production lines. Once individual components are pre-assembled, they are affixed, either directly or indirectly, to the rigidized integral base frame as it advances through the dwelling assembly alley. This final assembly of the housing components occurs in a very short period of time. Quality is assured by virtue of a controlled work environment within the movable manufacturing facility, factory tolerances, a streamlined, repetitive labor task assembly process, etc. The sequential, mutually exclusive and disjunct subcontractor operations of the prior art are replaced with a partitioning of the construction process to functionally complete the construction of predetermined volumetric sections of the structure at each of the production lines as the dwelling progresses through the movable manufacturing facility. Thus, wall sheathing and finishing may be started earlier than in the traditional stick-built building process while some operations, such as electrical and plumbing, can be done from the exterior of the dwelling when interior walls are in place. Each dwelling exits the movable manufacturing facility as a substantially completed “turn key” standard size dwelling ready for occupancy. These examples are indicative of a streamlined and efficiency driven approach to dwelling construction, which makes use of a factory environment to revolutionize the dwelling construction process for standard size homes.