Abstract: A demountable partition wall with laminated panels hung from a wall framework by clips applied to the back of the panel. The panels are sound absorbing tack boards, consisting essentially of a gypsum wallboard base board, a mineral fiber board core board and a porous decorative sheet of material adhered to the core board.

Abstract: A wall construction wherein a sheet of paper covered gypsum wallboard has at least one V-shaped groove formed part way through the thickness of the wallboard, and a sheet of rigid bendable sheet metal, conforming to one surface of the wallboard, along the groove area, is laminated to the wallboard whereby folding of the wallboard and sheet metal, along the groove, closing the groove, results in a folded section which remains firmly folded by reason of the folded rigid sheet metal laminate.

Abstract: Formed sheet metal clips, affixed relative to a wall panel being mounted, support the panel on a central downwardly extending hump in the clip, which provides a pivot point permitting slight rotation of the vertically extending panel, for easy placement in exactly the desired vertical extent prior to affixing the panel in place, as by screws or adhesive. The clips may be affixed to the panel bottom or to a floor track and may additionally provide means for affixing a wall base trim.

Abstract: A wall framework consisting essentially of vertical studs formed of sheet metal and horizontal channels extending through openings in the webs of the studs and locked firmly in the bottom portion of each opening by bendable sheet metal tabs formed at the sides of the upper portion of each opening, which tabs, when bent relatively inwardly, engage and hold the channel firmly in a desired position.

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 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: 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: A process for making a cement and non-asbestos fiber mat on a Hatschek machine having a cylinder vat, a cylinder in the cylinder vat, and a porous surface on the cylinder on which the mat is formed and through which drainage water passes including the steps of introducing a slurry of cement and non-asbestos fibers and clay and poly(ethylene oxide) and water into the cylinder vat, and maintaining a lesser portion of the porous surface in engagement with the cement and non-asbestos slurry than the portion of the surface which is otherwise normally engaged by a cement and asbestos slurry of the same depth to thereby form the cement and non-asbestos fiber mat on the lesser portion of the porous surface and thus provide a lesser area for the slurry to drain than the area through which a cement and asbestos slurry drains, the poly(ethylene oxide) and clay causing the drainage water to be substantially clear and not to have any appreciable amount of cement fines, the cement and non-asbestos fiber mat containing Port