Abstract: A flooring board assembly comprising a plurality of board parts, each board part having generally opposed tongue and groove formations thereon engageable with the groove and tongue formations, respectively, on an adjacent board part of the assembly. Each board part is further formed with a first notched surface below the tongue formation thereon and a second notched surface below the groove formation thereon. The corresponding first and second notched surfaces of any pair of adjacent board parts form a groove-like cavity upon engagement of the corresponding tongue and groove formations thereof. Each groove-like cavity is filled with a hot-melt resin which adheres to the corresponding first and second notched surfaces thereof.

Abstract: A work station for use in a control room wherein operators monitor instruments includes a platform supporting at least two upright perimeter walls spaced apart to provide at least two entrances onto the platform. Horizontally disposed desk tops are supported by the perimeter walls and on which are mounted instruments for observation by operators.

Abstract: Methods of adding floors to an existing building structure without altering the exterior of the structure is described. One method involves providing additional foundations within the existing structure and supporting a plurality of internal columns upon these new foundations. The internal support columns are brought through the existing roof and a large platform truss is supported on these columns. A conventional construction skeleton is built on the platform truss and provides as many floors as is required. Another method involves building a further foundation immediately adjacent the existing structure and supporting external columns and also providing new foundations within the existing structure with internal support columns. A platform truss is supported on the external columns and the internal columns and the platform truss acts as a base for conventional construction skeleton with as many floors as required above the existing building structure.

Abstract: This invention relates to a vehicle window structure. The vehicle window structure includes a window glass, a body member, a window molding, a retainer for the window molding and a seal member between the window glass and body member. The window molding is in contact with the window glass and the body member. The window molding is fixed on the retainer which supports the seal member. Accordingly, the window molding, retainer and seal member are united to form a sealing assembly which is secured to the window glass before the window glass is fixed on the vehicle body. Further, the retainer has an engagement portion which can engage with the body member. Thus, the window glass and its sealing assembly can be attached to the body member in a simple one-step operation.

Abstract: An adjustable staircase assembly comprises a pair of channel section stringer members having spaced tread support pivots adjacent their lower edges and tread locating apertures adjacent their upper edges, the tread locating apertures being spaced along arcs each having its origin at the tread support pivot axis. After the stringers are attached to a structure, the tread supports are pivoted to a horizontal position and a tab on each tread support is located in a suitable locating aperture in the sloping stringer such that the tread support is horizontal.

Abstract: A panel door comprising framing members, corner connectors and a door panel is disclosed. The framing members comprise a side wall and spaced apart first and second walls extending generally normal to the side wall. The first and second walls form a channel. The framing member comprises a deflection arm which is deflected by and which generates a return force against a door panel having an edge inserted into the front channel. Preferred framing members have a generally "E" shaped cross section and comprise a side wall and spaced apart front, intermediate and rear walls, the front and intermediate walls form a front channel and the intermediate wall comprises a deflection arm. The deflection arm of preferred stiles extends from a pivot position between the edges of the intermediate wall toward the front and side walls. The deflection arm of preferred rails is bent at a position between its edges and extends from the bend away from the side wall and toward the plane of the front wall.

Abstract: Proposed is a method for the erection of structures, such as bridges, that display pre-fabricated concrete beams, according to which the individual pre-fabricated beams are produced, on the spot, on a feed rigging within the corresponding work area of the structure, in a heated and laterally tiltable form. After removal from the form, the thusly produced pre-fabricated beams are transferred sidewardly into their final position by means of gantry cranes. During concretizing of the individual pre-fabricated beams, flexure of the feed rigging carrying the form is equalized in continuous fashion, in correspondence with the progressing, concretizing process, by transfer pumping of ballast liquid.

Abstract: A demountable wall system is disclosed in which panels are removably connected to H-shaped metal studs. The principal structure of the panel is provided by a wallboard having a width less than the modular spacing between studs. Sheet metal mounting strips are adhesively secured along the opposite edges of the wallboard and are positioned with respect to each other so as to provide the assembled panel with an exact modular width. Each mounting clip includes a connector portion which releasably secures the panels to the studs and a finish portion which extends along but is spaced from the side edges of the wallboard. A facing sheet of flexible sheet material is laminated to the forward face of the wallboard and extends across the gap between the finish portion of the mounting clips and the wallboard to hide such gap. The facing sheet then extends back along the finish portion and is provided with an edge positioned where it is not likely to be loosened during the handling and assembly of the panels.

Abstract: A window stay for the support of a window glass for use in vehicles, with a window frame and a glass retainer firmly secured to the window frame with the peripheral edge portion of the window glass sandwiched fluid-tight between the window frame and the glass retainer. An elastic cushioning strip encircles the peripheral edge portion of the window glass and is held in position between the window frame and the glass retainer during assembly of the peripheral edge portion of the window glass in the sandwich. To avoid relative displacement of the glass retainer, a rim projection is integrally formed with the window frame, thereby permitting the glass retainer to resist the reactive force exerted by the compressed elastic cushioning strip.

Abstract: In order to provide a pleasing aesthetic appearance, and also in order to enable concealed, directional lighting to be used, an openword grid-like suspended ceiling system has outer squares which contain four inner blades forming an inner square surrounded by four rectangles. Light fittings are associated with the rectangles so that the axis of a light fitting can be inclined. In order to enable the ceiling system to be packaged at low packing density, the four inner blades are hinged to each other and collapse so as to lie parallel to each other. After opening out, they can be hooked into the sides of the outer squares.

Abstract: An extensible mast is shown which is erected from a portable base having a plurality of tape reels mounted thereon. The tape reels are angularly oriented on the base with respect to a common, vertical axis, and each of the tape reels is adapted to receive a resilient metal tape having longitudinal edges for winding and unwinding the tape. A plurality of guide rollers on the base receive the respective longitudinal edges of the metal tapes and orient the tapes whereby the tapes are fed upwardly in planes parallel to the vertical axis and at an angle to each other to form a rigid structure. A geared winding mechanism, including a plurality of rotatable windings rotates about the vertical axis and wraps a wrap material about the rigid structure to reinforce the structure as it is being erected.

Abstract: A panel door assembly with a mirrored front side is provided with a relatively rigid rear side, a plurality of rails for spacing said front and rear sides and side channels which form an interference fit with the rear side and the rails. Brackets are mounted on said rails to support said mirrored side.

Abstract: A truss assembly for supporting a building brick or masonry wall comprising a top and bottom chord, a plurality of vertical and diagonal stud members interconnected between the chords; and a lintel angle, for supporting the brick wall, connected to the bottom of the stud members at least. Tieback members are provided which secure the wall to the truss assembly. Adjustment provisions allow aligning the truss assembly both vertically and horizontally before the wall is constructed. A further stud member spans the truss assembly horizontally and provides a physical connection between the truss and the concrete floor systems. Bracing is provided between the column supports, by interconnecting members between the floor slab and the bottom portion of the truss assembly.

Abstract: A tornado shelter, specially adapted for use with mobile home lots. The shelter is an underground enclosure defined by an annular sidewall and a top and bottom. The top of the enclosure has an entrance and egress passageway in communication with both the enclosure and the bottom of a mobile home. The passageway is surrounded by a flexible sidewall which is moveably attached to the top of the underground disclosure and the bottom of the mobile home. An associated collapsible stepladder allows convenient and egress. When the mobile home unit is moved, the passageway sidewall may be removed, and the shelter sealed until a new unit is moved in place.

Abstract: In combination with a building door, there is provided a key safe for a door key comprising an open ended housing secured within and projecting through the door. A safe door is hinged to and closes one end of the housing and has a retractable latch bar engageable with the building door to lock the safe door. A combination lock on the safe door includes a normally open printed circuit connected to a power source. A solenoid is connected to the circuit and includes a plunger connected to the latch bar. A tamper proof key tray is nested within the housing and normally spring biased for ejection inwardly of the building door. A first detent assembly is interposed between the safe door and tray so that any forceful opening of the safe door disengages the detent assembly.

Abstract: A ventilator for use in a roof structure of the type having a fascia and cover material at least partially overlying the fascia comprises a panel member adapted to engage the cover material, and means to define first and second communicating ventilation paths. The first ventilation path extends between the panel member and an outer face of the fascia, and the second ventilation path extends between the cover material and the fascia.

Abstract: A decorative shelf edging strip has a generally L-shaped cross section. The strip cooperates with a metal shelf having two successive bends forming a front face and underturned lip. The front face of one of the legs of the L is treated with a decorative coating which may simulate wood grain for decorating the front face of the shelf. The second leg of the L-shaped strip terminates in a hook which engages the edge of the underturned lip of the shelf. The first and second legs of the strip form an angle slightly less than 90.degree. and the second leg further includes a small dogleg bend. A rib extends along the length of the strip from the upper portion of the first leg. Upon installation, the hook is first engaged with the rear edge of the underturned lip of the metal shelf.

Abstract: A game blind comprises upper and lower sections which telescope relative to one another between an expanded hunting position and a collapsed storage position. The hunter's compartment is elevated above ground level by a plurality of legs received in brackets. The legs are free from significant cross bracing thereby minimizing the cost of the blind and enhancing the ease of assembly and erection.

Abstract: A unit for bonding two structural reinforced concrete components comprises a mounting strip having a pair of oppositely directed main faces and a plurality of connector rods held firmly on the mounting strip. Portions of the connector rods project at intervals along one side of the mounting strip and the connector rods have arms bent to a knee shape, the arms being positioned within the mounting strip. One of the main faces of the strip on the side away from the projecting portions of the connector rods defines at least two grooves parallel with one another and extending in the longitudinal direction of the mounting strip. The grooves have a width substantially equal to the diameter of the connector rods and a depth at least equal to the diameter. The mounting strip further includes holes at intervals along its length, the holes extending from the bottoms of respective ones of the grooves towards the opposite main face of the mounting strip.

Abstract: A grid designed for use as a runner or a doormat comprises a multiplicity of parallel profiled bars, preferably of plastic, having a generally U-shaped cross-section with two upstanding flanges interconnected at their lower ends by a horizontal web. In certain embodiments each flange has an inverted-Y profile with one arm joined to the web and the other arm diverging therefrom, the two arms defining between them an undercut, downwardly open longitudinal groove which in the case of at least one flange has a cross-section in the shape of an upwardly pointed arrowhead facilitating the introduction, from below, of a substantially complementarily shaped upstanding rib of a connecting member of much shallower U-profile linking a pair of adjoining bars to each other. The underside of the connecting member is either flush with that of the bars or at a slightly lower level.