Abstract: A unique and simple apparatus and method allow one to simultaneously level a closure, such as a door or window, in an opening in a wall while also anchoring that closure to the wall. The apparatus includes a spring shim and an anchor. The spring shim has a pressure foot at each of two ends for engaging either the wall or the closure and an intermediate portion having a central aperture for receiving the anchor. The closure is leveled and plumbed in the opening by attaching a series of spring shims at spaced locations around the closure. The closure and attached spring shims are then positioned in the opening followed by the engaging and penetrating of the anchors into the wall.

Abstract: Cold formed, light-gauge metal structural framing for building construction, including a one-piece jamb member, a one-piece load-bearing header member connected to said jamb member, and a one-piece upper channel member connected to at least one of said jamb member and said header member and spanning a juncture of said jamb and header members. The framing may also include an expandable, cold formed, light-gauge metal window frame subassembly.

Abstract: A window frame construction particularly useful in a manufactured housing unit to provide a structure for receiving and supporting at least one window and to provide coverage of ends of siding applied to the exterior of the housing unit. The window frame includes a window body member to generally circumscribe an opening in the housing unit, with a J-rail return member integrally formed therewith to provide a flange member for attachment of the window frame to the housing unit and to cover and secure ends of the siding in a slot formed between the flange member and the return member of the J-rail return. The return member has sufficient width to cover the siding ends even when the siding contracts during lowered temperatures. The window frame, in the preferred form, is constructed from extruded vinyl, and it is used principally for vinyl siding.

Abstract: The present invention relates to a door frame made of wood. The door frame comprises a pair of rails, a pair of stiles and connectors. At each of the connecting ends of the rails and stiles, hollows and holes are formed, into which a connector capable of disassembly is inserted and fixed, thereby joining and tightening the rails and stiles. The door frame can maintain its integrity and still provide for convenient repair and replacement of damaged portions by disassembly of the connector.

Abstract: An improved door jamb and brickmold assembly has a rectangular wooden jamb and a unitary co-extruded thermoplastic member mounted to said jamb and defining both the door stop and the brickmold of the assembly. In one embodiment, an elongated securing tab projects from the brickmold and is positioned to overly the exterior surface of a building in which the assembly is mounted for securing the brickmold to the building.

Abstract: A modular fitting room for retail store use. The fitting room provides side and front panels to define an interior space. A door panel is provided with laterally extending formations which cooperates with studs to prevent viewing of the interior space from outside of that space. Studs for mounting the door panel and for facilitating the assembly of the fitting room are also described.

Abstract: A metallic frame and, more particularly, a stainless steel door frame has a bent sheet metal frame element encompassing an inner space and the element has backbends which extend perpendicularly inward from the back ends of faces of the element. At least one slidably insertable sleeve is disposed inside the element and has flanges which are spot welded to the back ends. The sleeves serve as carriers for various door hardware such as hinge reinforcement and strike plates, clips having bendable tabs, and anchors.

Abstract: A reinforced assembly for a door opening includes an elongated reinforcement strip having an L-shaped transverse cross-section of one short leg and one long leg, the long leg for mounting on a door jamb face and the short leg for mounting on a door jamb edge. The short leg has a transverse extent such that upon the reinforcement strip being mounted on a door opening, the transverse extent of the short leg of the reinforcement strip is no greater than the offset distance between the forward edge of the adjacent door casing panel and the door jamb face to which the long leg is mounted. For securing the strip to the door jamb and for receiving the latch of a door, a plurality of spaced openings are formed in the long leg of the reinforcement strip, at least one of the openings being generally rectangular to receive the tongue of a door latch mechanism. The elongated reinforcement strip is adapted to be mounted on a door opening free of modifications to the door jamb, door casing panel and door opening.

Abstract: The invention relates to a system for joining the frame of a landing door (7) of an elevator to the wall structure (4) surrounding the frame, in such a way that the elevator shaft (5) is isolated from the rest of the space in the building. According to the invention, a heat-resistant protective element (9) flexible in normal temperature and at least in a temperature of 500.degree. is fitted between the frame (8) and the wall structure (4), said element being attached to the door frame (8) and to the shaft wall structure (4).

Abstract: Artificial lumber module which may be joined with like modules to create artificial lumber of conventional lumber sizes includes an elongate channel; a plurality of dividers integrally formed within the channel and spaced along the channel; and braces integrally formed with and between adjacent dividers. A plurality of the modules may be connected together substantially in parallel with the open side of the channels facing the closed side of adjacent channels in order to form modular lumber of selected sizes.

Abstract: A building aperture frame system including a window mounting surface and an integrally-formed storm shutter mounting structure. The frame system may be comprised of first and second elongated profiled jambs, an elongated profiled header mounted to and traversing a distance between an upper portion of each of the first and second jambs, and an elongated profiled sill mounted to and traversing a distance between a bottom portion of each of the profiled jambs. Each of the profiled jambs, header and sill have a width sufficient to traverse at least a portion of a distance between an interior and an exterior surface of a building wall defining a building aperture. Alternatively, the building aperture frame system may be comprised of first and second profiled jambs capable of extending vertically along first and second vertical side walls of a building aperture. Each of the profiled jambs is capable of extending along a horizontal distance of at least a portion of the vertical side walls.

Abstract: A building aperture frame system including a window mounting surface and an integrally-formed storm shutter mounting structure. The frame system may be comprised of first and second elongated profiled jambs, an elongated profiled header mounted to and traversing a distance between an upper portion of each of the first and second jambs, and an elongated profiled sill mounted to and traversing a distance between a bottom portion of each of the profiled jambs. Each of the profiled jambs, header and sill have a width sufficient to traverse at least a portion of a distance between an interior and an exterior surface of a building wall defining a building aperture. Alternatively, the building aperture frame system may be comprised of first and second profiled jambs capable of extending vertically along first and second vertical side walls of a building aperture. Each of the profiled jambs is capable of extending along a horizontal distance of at least a portion of the vertical side walls.

Abstract: A facade for a dormer window having side trim members and a pediment of molded plastic duplicating the appearance and texture of expensive wood millwork. The plastic is molded around boards having exposed rear faces. The boards give the structural strength of wood millwork to the trim and pediments and provide means for securely fixing by fasteners, such as screws the molded plastic members to a metallic skeleton frame defining an opening for pre-existing window frames.

Abstract: A mullion assembly mountable between a floor and a door frame includes an engagement assembly attached to either the floor or the door frame. A mullion defining a mullion cavity is positioned in removable attachment with the engagement assembly, and a cylinder lock assembly is positioned in the mullion cavity. The cylinder lock assembly has a key lock cylinder configured for positioning in either a locked position to engage the engagement assembly and hold the mullion in an upright position in the door frame, or in an unlocked position disengaged from the engagement assembly to permit removal of the mullion from the doorway.

Abstract: A free standing door jamb and trim system is completely prefabricated prior to shipping and installing the jamb in a doorway. The jamb is securely stabilized in a square orientation by gluing it to a three-sided trim frame with glued mitered square corner joints. The combination of adhesively bonding the square mitered joints of the trim frame, and adhesively bonding the trim frame to the front of the door jamb, produces an exceptionally strong door jamb assembly which can independently support a swinging door without attachment to the wall.A system and method for producing a prefabricated free sanding wooden door, jamb and trim assembly is provided. A preferred door/jamb assembly includes a first leg, a second leg and a first header. Each of the first and second legs are squarely connected to an end of the first header. A front trim frame includes a first side piece, a second side piece and a first top piece dimensioned to frame the sides and the top of the doorway.

Abstract: The mini storage silo comprises a tall, enclosed, octagonal structure which has a conical roof, two doors that swing away from one another to create a large opening into the interior thereof, an elevated floor, and a plurality of adjustable shelves therein. Optionally, the lower portion of the silo may serve as a dog house, with a canine entry being set into one of the walls just above the level of the floor.

Abstract: A jamb assembly is used to form a door frame system for installation within a wall having an opening for a door. The jamb assembly comprises a first elongated member having an L-shaped shoulder along one side of the member. A groove running parallel to the shoulder extends the length of the member. The jamb assembly has a second elongated member identical to the first member. The members are inverted relative to one another so that the L-shaped shoulders of the first and second members fit together to form an expandable base of the jamb assembly. A third elongated member has a tongue projecting on one side thereof that extends the length of the third member. The tongue is formed to fit into the groove of the first or the second elongated member to form a cap for the jamb assembly. The tongue extends beyond the ends of the first and second members when the jamb assembly serves as a head jamb assembly.

Abstract: End portions (10) of a tap plate (A) are welded to a metal door frame (B) with welding projections (12). The tap plate (A) has a front face (18) which is recessed from a rabbet surface (22) of the door frame by a thickness (24) of a heavy-weight hinge leaf (26). Adjacent each of the tapped bores (30) for receiving a hinge leaf mounting bolt (32), a button (40) projects forward from the tap plate front face. The buttons project forward by a difference (54) between the thickness of the heavy-weight hinge leaf and a thickness (56) of a standard hinge leaf (58). Each of the buttons defines a necked-down portion (44) around its periphery. The projecting portion of the button is removed to mount a heavy-weight hinge leaf (FIG. 3). With the buttons still in place, a standard-weight hinge leaf is mounted to the tap plate with its front face flush with the rabbet surface of the door frame (FIG. 6).

Abstract: A glazing pocket filler is disclosed for use with a frame member having a glazing pocket of predetermined width for receiving a lateral edge of an infill panel. The glazing pocket filler comprises a filler panel having a length substantially corresponding to the width of the glazing pocket. A spring leg extends inward and forward from the filler panel and has a bearing surface located at a forward end thereof. The spring leg is configured such that when the filler panel is positioned across the glazing pocket, the bearing surface of the spring leg engages an inwardly convex portion of the frame member's forward glazing pocket wall to bias the rearward edge of the filler panel into engagement with the interior glazing pocket edge formation. Simultaneously the spring leg biases the inward face of the filler panel snugly against the outer edges of the frame member's front and rear glazing pocket walls. In this manner the filler panel is maintained in close engagement with the frame member.

Abstract: The reinforcing bridge is intended to prevent crumbling of plaster at the lateral ledges of window sills under the influence of vibrations, wind and thermal expansions. The reinforcing bridge has a piece of elastic, plastic profile, which serves to embrace one of the lateral cover strips (30.2) of the window sill (30). After the reinforcing bridge (1) is mounted on the cover strip (30.2) of the window sill (30), reinforcing pins (40, 42) are seated in the profile and protrude into the space, which is to be occupied by the plaster (26, 28) of the window jamb and the facade. First, the window sill (30) with its cover strips (30.2) is mounted, a reinforcing bridge (1) is then attached on both sides of the cover strips (30.2) and finally the plaster (26, 28) is applied on the window jamb and the facade.

Abstract: A door frame is prefabricated at remote construction sites and is installed into wall openings without requiring substantial on-site fittings, moldings, trims, and attachments. The door frame includes a header jamb and header grooves. A header scribe strip is fitted to and disposed in one of the header grooves. Header spring means are disposed in said header groove and are pressing the header scribe strip outwardly. Header plate means are pivotally attached to the side of the frame facing the opening face of the wall opening and disposed such as to assume a first locking position. A first and a second side jamb each have a first end attached to the header jamb and have a first and a second side groove. A first side scribe strip and a second side scribe strip are in each case fitted to and disposed in one of the respective side grooves. First and second side spring means are disposed in each case in the respective side grooves and press the respective side scribe strip outwardly.

Abstract: A glass block window system for installation in a gypsum board wall is disclosed. The window system comprises a wall opening defined by a window frame comprising a sill stud, a header stud and first and second jamb studs. A hollow metal frame defines a window opening. The frame includes frame members comprising a sill member, a header member, and first and second jamb members joining the sill member and the header member. A block channel comprising a sill channel, a header channel and first and second jamb channels is secured to the frame members. A plurality of contiguous glass blocks forming a window unit is secured within the block channel.

Abstract: A framework of a wooden building has a pair of vertically extending pillars formed on opposite sides thereof with longitudinal grooves and a wall panel mounted between the pillars, having its side edges inserted in the grooves in the pillars. A diagonal pillar formed in the opposite sides thereof with grooves may be provided between the vertical pillars to support two triangular wall panels. A fitting such as a window sash may be mounted between the pillars so as to be sandwiched between upper and lower wall panels.

Abstract: A van wall brace for reinforcing a truncated pillar of a van wall which has been cut in order to accommodate a retrofitted window. The van wall brace connects to the severed end of truncated pillar and is tied into adjacent intact pillars so as to lend structural integrity to the truncated pillar, thereby restoring strength to the van wall. The van wall brace is preferred to be formed of a single piece of heavy gauge sheet metal stock of elongate shape. Each end of the sheet metal stock is stamped with a predetermined reciprocal pillar contour or contours for engaging the intact pillars located on either side of the truncated pillar or pillars. The sheet steel stock is further stamped between the ends thereof so as to provide another predetermined reciprocal pillar contour or contours for engaging each truncated pillar or pillars.

Abstract: An air-vapor barrier continuity device for installation across an airspace between a window (or door jamb) and a wall stud (or rough sill) so as to provide an air-vapor barrier across the airspace. The continuity device comprises a flexible first generally rectangular longitudinal planar member and a second generally rectangular longitudinal line of the second member. The angle between the first and second members is greater than 90.degree. to provide biased contact with the wall stud or rough sill. The second member attaches to a door (or window) jamb at the inner wall surface of the jamb. The first member is of sufficient breadth to extend from the jamb across the airspace to the first wall stud (or rough sill) adjacent the air space. Preferably, the continuity device is extruded from a polymeric material as a single sheet bent along a longitudinal line, one side forming the first member and the other side forming the second member.

Abstract: An arcuate window frame mounting structure is disclosed comprising an arcuate member sized and configured to be inserted within an existing wall structure, such that the outer edge of the member will interface with the back side of an exteriorally mounted arcuate window frame while the inner edge of the member will be flush with the inner edges or surfaces of the adjacent wall studs. In addition, methods of forming the arcuate window frame mounting structure are disclosed.

Abstract: A unitary blind locking device for prefabricated structure construction configured into a substantially rectangular shape for securely binding together pairs of suitable similar and/or dissimilar construction materials of similar and/or dissimilar thicknesses. It has a plurality of legs with end parts that are to be used for gripping the construction parts firmly together by means of the cleats or teeth punched out of an interfitting plate that is part of the lock itself and, for anchoring purposes, said lock being fabricated in various shapes and sizes and with accompanying wall lifting straps to meet the demands of workmen at the permanent construction site so as not to hamper their vision while erecting the permanent structure and also to allow the construction at the prefabrication site to proceed smoothly.

Abstract: An improved modular building (10) is disclosed, the building (10) comprising sidewall modules (11), and ceiling modules (12). The sidewall modules (11) comprise a primary frame (19) to which a secondary frame of furring strips (26) is attached. The sidewall modules (11) further comprise foam insulation (27) molded around the primary and secondary frame to define exterior and interior planar surfaces (28, 29). The ceiling modules (12) comprise frame means supporting a plurality of ceiling joists (67), and foam insulation (27) dispersed within the frame means and between the ceiling joist (67) so as to define upper and lower ceiling surfaces (68, 69). In one embodiment, floor modules (14) are also provided. A method for fabricating the various modules of the present invention is also disclosed.

Abstract: An enclosure frame that is to be placed in a wall opening for a door or the like. The frame comprises a liner that is disposed in the wall opening, and at least one casting that is disposed on an edge of the liner, extends at right angles to the latter, and is also disposed on a wall surface. For mounting an edge strip, that end of the casing remote from the liner is provided with a retaining strip. The latter has a mounting leg that rests on a wide side of the casing and is secured thereto. The retaining strip also has an insertion leg that extends from the casing at right angles to the wide side thereof. The edge strip has an inner side that faces the wall surface and is provided with a longitudinally extending, slot-like recess into which the insertion leg of the retaining strip can be introduced in a self-clamping manner. The edge strip also has a channel for receiving the mounting leg of the retaining strip and for covering the same from sight.

Abstract: A kit of parts for constructing a loft hatch frame comprises four extruded `T`-section mouldings 12 and four corner plates 14. Each moulding 12 comprises an elongate face plate 12a and an upstanding longitudinal web 12b upstanding generally centrally from the face plate. In use the mouldings 12 are cut slightly shorter than the sides of the loft access opening, and nailed to the ceiling purlins through the upstanding webs 12b. The face plates 12a closely abut the ceiling and together provide an internal shoulder on which an access panel rests. Each of the four corner plates 14 has a pair of recesses 16 formed therein, shaped to receive the ends of the face plates 12a of a pair of the extruded mouldings 12. Thus the corner plates 14 mask the junction between adjacent mouldings 12, and provide a neat finish even though the mouldings have not been cut to exact length.

Abstract: A window unit has a plurality of adjustable anchors fixed to a bottom rail thereof. When the window unit is mounted in a building opening, a top rail thereof is received in a channel-shaped frame secured to an upper edge of the building opening and the adjustable anchors are each placed on an attachment base plate secured to a lower edge of the building opening. Then the adjustable anchors are adjusted to adjust the window unit in position between the upper and lower edges, and thereafter are welded or otherwise fastened to the attachment base plates.

Abstract: In the electronic equipment shelter disclosed herein, protection of electronic equipment from both normal and abnormal environmental conditions, including severe electromagnetic pulses, is provided by employing a construction in which panels having inner and outer aluminum skins are joined together in an assembly employing extruded box tubes at each edge with the outer skins being welded to each other and to the tubes so that a complete conductive envelope is obtained. The necessary door opening is made electromagnetically unitary with the main shelter body by metal spring finger gaskets which are compressed by means of a multiplicity of linked dogging assemblies all around the door frame.

Abstract: An improved modular building (10) is disclosed, the building (10) comprising sidewall modules (11), and ceiling modules (12). The sidewall modules (11) comprise a primary frame (19) to which a secondary frame of furring strips (26) is attached. The sidewall modules (11) further comprise foam insulation (27) molded around the primary and secondary frame to define exterior and interior planar surfaces (28, 29). The ceiling modules (12) comprises frame means supporting a plurality of ceiling joists (67), and foam insulation (27) dispersed within the frame means and between the ceiling joist (67) so as to define upper and lower ceiling surfaces (68, 69). In one embodiment, floor modules (14) are also provided. A method for fabricating the various modules of the present invention is also disclosed.

Abstract: A stressed-skin building panel including structural strengthening members located alternately adjacent the two opposite skin members of the building panel, each of the structural strengthening members being spaced apart from the opposite skin member by a block of high-density rigid foam material, and the remainder of the space between the skin members being occupied by a foamed-in-place foam insulating material adhering to the skin members and structural strengthening members and providing a significant amount of strength and resistance to compressive stresses. The opposite skin members are spaced apart from one another and held together at the proper spacing during and after construction by a plurality of bridge members which form the only direct connection between the skin members by other than insulating foam material, so that the insulating quality of the panels is maximized.

Abstract: The present invention is directed to an insulated building construction which includes panels having interior and exterior skins with an insulating core therebetween. Additionally, the bearing posts between panels have interior and exterior support members with an insulating layer therebetween. A mechanism for maintaining a thermal barrier around corners as well as between walls and roof is disclosed. All panels have standardized passageways which mate with one another to provide an efficient way of routing electrical wiring. A building in accordance with this invention may be constructed to be completely surrounded by appropriate insulating material thereby minimizing "thermal shorts".

Abstract: A hanger bracket for fastening a framing member to a strut of geodesic building structure, the struts of which define the planar faces of at least part of a regular geometric shape. The hanger bracket has a back and a top support member extending from the top end of the back and inclining toward the bottom end of the back at an angle to the back of substantially one-half the angle of intersection of the planar faces. A bottom support member is opposed to the top support member and extends parallel thereto from the bottom end of the back. The back may be fastened to a side surface of the strut with the top end extending away from the center of the geometric shape and the support members extending into the planar face of the geometric shape defined in part by the strut.

Abstract: An interior wall system formed from two opposing walls. Each opposing wall is assembled from a plurality of composite wall panels, each wall panel having an exterior surface material and an interior layer of insulating material bonded to one side of the exterior surface material. Each opposing wall is anchored to top and bottom U-shaped support members and adjoining wall panels of each wall are connected by a plurality of retaining clips. The retaining clips may be adjusted in length to accommodate various widths between the opposing walls. Additionally, splines are inserted between the first and second walls along the seams between adjoining wall panels. The wall system also includes a door frame comprising first and second jamb members and a lintel member, each having a spacing member attached to approximately the center thereof. The spacing members are inserted between the opposing walls and are used to anchor the door frame in place.

Abstract: The invention relates to a means for fastening a frame to a wall stud. In order to avoid the use of wooden studs between the frame (7) and the steel stud (6) there is arranged in those locations in the steel stud (5) where the frame (7) is fastened to the stud by means of a screw (13) a stud piece (14) whose web through which the screw (13) is passed is provided with a reinforcing plate (15) which together with the web provides a sufficiently thick wall for a stable securing of the screw (13).

Abstract: A housing module which is formed as a box-beam structure, and has sufficient rigidity and strength so that it can be used to span distances of relatively great length. The housing unit is able to be prefabricated and can be readily transported without the need for additional support or stiffening members to prevent damage from excess flexure. Further, the unit can be simply put in place on site without any additional stiffening or strengthing members. In addition, the units can be stacked one over the other, thus greatly increasing their flexibility to the architect.

Abstract: A wall framing bracket for retaining alignment of a floor plate and framing stud of a stud wall at the floor level of a passageway through that stud wall. The framing bracket is of generally U-shaped configuration, the bracket's longitudinal axis being aligned with a floor plate's longitudinal axis to embrace the floor plate and a framing stud during use. The bracket is connected directly to the floor by flanges that flare outwardly from the bracket's bottom edge.

Abstract: A method of constructing a building with a sound-proof window therein. A double-skinned exterior wall is constructed having an outer structure of sheathing supported by vertical studs and an inner structure of sheathing supported by vertical studs which are separate from the studs supporting the outer sheathing, such that an air space is created therebetween. A first window is glazed in an opening in the outer sheathing and a second window is glazed in an opening in the inner sheathing, such that the second window is in tandem with the first window. The air space between the inner and outer structures is then filled with a sound-absorbing insulating material, such that the air space provides a sound-absorbing resonant cavity.

Abstract: The present invention comprises a portable wall structure including a metal cap forming the top of a wall structure, a metal floor track forming the bottom of the wall structure, and a series of channeled load-bearing studs that are secured vertically between the cap member and the floor track member. These vertical studs are composed of steel of about 20 gauge thickness. A vertical steel stud is positioned at each end of the wall structure to provide closed ends of the wall structure. This wall structure forms a separate unit of substantially rectangular configuration which may be prefabricated and separately transported to a building construction site. Some parts, such as top plates, corners, door surrounds, and window surrounds, made of wood, are included in some embodiments of the invention.

Abstract: A building wall panel includes vertical studs welded to top and bottom channels to provide a rigid framework the maximum width of which is such that the panels may be transported over highways and the length of which is determined by the wanted wall height. Finish sheet material is secured to the inner or rear surfaces of the framework to provide an inner wall. Sections of insulating material are lodged in the rectangular spaces of the framework against a vapor barrier backed by the inner wall and dimensioned to be spaced from the outer surfaces of the framework. A vertically spaced, series of horizontal sub-girts has one secured to each channel and others secured to the studs and the sub-girts secured and the channels may be used to secure flashing. Metal panelling is secured to the sub-girts to provide an outer wall thus providing the panel with a dead air space. The framework is modified to meet door and window requirements.

Abstract: An inexpensive, thoroughly insulated upright-wall, ceiling, floor or roof, made of panels fastened together along contacting panel edges. Each panel has a can-supporting, substantially planar element (a sheet of plywood, masonite, plastic, metal lath, or the like), reinforcing bars defining outer edges of the panel, layers of cans between the reinforcing bars, wire or plastic panel-reinforcing network on the cans; and optionally it may include molded matrix material (foamed, cellular, polyolefin plastic, or concrete of portland or other cement and sand or porous aggregate --for example, cinders, vermiculite, pumice, charred sawdust or the like) on the cans. The can-supporting element is placed in a mold or rack; a plurality of insulating layers of cans are put on this element, preferably with their axes parallel to it; reinforcing network is placed on the cans and fastened to the bars; and optionally moldable plastic material in fluent form may be poured or injected onto the network and cans.

Abstract: The wood building construction is comprised of a panelized wall and/or floor construction which does not require any masonry foundation whatsoever. The vertically extending wall panels are connected to the floor panels in such a manner as to transmit forces acting on the perimeter wall to the floor system and are connected to each other in such a manner as to define a post construction having beam sockets for multiple floor and roof levels. Each vertically extending wall panel for a multi-level construction can extend continuously from the gravel support bed to the roof line to present an unbroken vertical line. The wall panels are constructed and arranged so that each joint is covered by trim and all openings are pretrimmed to allow in situ installation of doors and windows with a minimum of labor.

Abstract: Improved means for and methods of removably fastening door frames into door openings where the door opening is defined by masonry construction, concrete columns and the like (not wood).