Abstract: A partition wall in which a plurality of sections are adjoined by a plurality of vertically spaced apart hollow clips having a tightenable screw protruding from each to which a section of wall is to be affixed, with each screw head being placed through a hole in the web of a metal stud near the end of each wall section, with the screw head screwed tight against the stud web material.

Abstract: Joints between predecorated gypsum wallboard concealed by relatively thin battens made of predecorated wallboard paper narrow strips with pressure-sensitive adhesive on the back, applied by mechanics using rolls of predecorated paper with adhesive and release paper on the back side of the predecorated paper.

Abstract: A furniture channel for vertical disposition against horizontal framing members, with an intermittent raised bead on the furniture channel inner surface for selective, optional positioning, against the horizontal framing members, for obtaining the desired spacing of the furniture channel faces from the framing members.

Abstract: A radiation shielding door of massive concrete mounted to move parallel to a wall surface adjacent a door opening, while supported on a plurality of roller assemblies which travel along a rail mounted in the floor.

Abstract: A laminated curtain wall panel is prepared by continuously disposing foam boards onto adhesively coated gypsum sheathing followed by a third layer consisting of a reinforcing mesh and a cementitious binder, as the product progresses on a conveyor. The laminated product is erected by screws which are forced through the panel by a screw gun which disposes the screw head firmly against the gypsum sheathing.

Abstract: Predecorated gypsum board having an embossed design extending into the paper-covered front face and a utilitarian embossing extending into the paper-covered back face, preferably formed by embossing a laterally extending crepe design in the back paper with longitudinally extending narrow relatively unembossed strips at spaced positions across the width of the paper.

Abstract: A hollow wall having a plurality of spaced, vertical studs, wallboards affixed to both sides of the plurality of studs, and septum panels disposed within the hollow of the wall, held firmly in place by small pieces of board, with one such piece of board on each side of the septum panels, at each side edge, extending through an opening in a stud.

Abstract: A formed sheet metal corner bead having a channel portion for mounting on the edge of one sheet of wallboard and a narrow double layer flange extending laterally outward to cover the edge of a second sheet of wallboard which forms an exterior corner with the first sheet of wallboard.

Abstract: A laminated curtain wall panel is prepared by continuously disposing foam boards onto adhesively coated gypsum sheathing followed by a third layer consisting of a reinforcing mesh and a cementitious binder, as the product progresses on a conveyor. The laminated product is erected by screws which are forced through the panel by a screw gun which disposes the screw head firmly against the gypsum sheathing.

Abstract: Improved connections of preformed concrete construction elements wherein one or more metal pins, of any preferred cross-sectional shape, are cast in place, or grouted, extending into each of two elements to be connected, with an elastic grommet disposed between a portion of each pin, in an area on each pin nearest the joint, and the surrounding concrete or grout, whereby the load transfer capacity of the connection is increased about threefold.

Abstract: A tapered edge wallboard, for monolithic wall construction, in which the taper is formed by removal of core material along an edge, as by a saw cut, and a thin layer of edge material is bent inward, closing the saw-cut groove and resulting in a taper.

Abstract: Joints between predecorated gypsum wallboard concealed by relatively thin battens made of predecorated wallboard paper narrow strips with pressure-sensitive adhesive on the back, applied by mechanics using rolls of predecorated paper with adhesive and release paper on the back side of the predecorated paper.

Abstract: A building exterior wall having an exterior surface of a concrete-stucco formed in place over panels which have a polystyrene bead board core and thin concrete facings reinforced with a fiberglass open-weave mesh.

Abstract: A predecorated gypsum wallboard and the method of manufacture wherein a protective base coat is applied on the face paper by a rotogravure printing of the protective coat with minute openings very closely spaced throughout the coating, as by printing the coat in the form of reasonably uniformly sized tiny dots with about 1000 to about 100,000 dots per square inch, a decorative coat is applied over the base coat, gypsum wallboard is formed with the coated surface of the paper on the outside face, and the newly formed wallboard, when hardened, is dried by heating and removing water from the gypsum core through the still porous coated paper.

Abstract: A progressive demountable partition in which gypsum wallboard is affixed against I-shaped vertical studs by a plurality of small sheet metal clips having short tangs projecting into the wallboard back face and having a flange-engaging forwardly extending portion engaged behind the vertical stud flanges.

Abstract: A fire-retardant gypsum wallboard having, in the gypsum core, about 2% by weight of a feldspar-free muscovite, in combination with other minor additives including 1/2 inch long glass fibers.

Abstract: A thermally insulating window having two spaced parallel removable sashes in side by side relation, closely spaced apart meeting rails on the sashes and an intermediate rail member sealing the space between the meeting rails.

Abstract: An economical, versatile, easily changeable sample case for building materials such as plastic siding having three main panels and two narrow intermediate panels foldable into an open-ended case, with sample insert retainers on two adjacent main panels, color sample pockets on the third main panel, hook and loop fabric fasteners to hold the case closed and a handle on the exterior of one intermediate panel.

Abstract: By-product gypsum, which is formed during a flue gas desulfurization process, (FGD gypsum) is carefully formed as an aqueous slurry of crystals having a mean particle diameter of between about 35 microns and 80 microns and filtered, which filter cake is substantially completely dried before calcination, without any substantial grinding action, the crystals are then flash calcined to a hemihydrate, then ground, to reduce consistency, and then formed into an aqueous slurry from which a paper-covered gypsum board is formed of superior core quality.

Abstract: An insulated exterior building wall structure with a moisture-impervious insulation board on the exterior side of the wall, with moisture venting grooves on the inner surface of the board.