Abstract: A mounting strip with carpet gripping means for relocatable partition walls is disclosed. Said mounting strip comprises a central portion having a generally rectangular configuration, support shelves integral with said central portion and extending outwardly from marginal edges thereof, a multiplicity of barbs extending downwardly from said mounting strip, locating tabs extending upwardly from said central portion along said marginal edges defining an accommodating path for floor runners therebetween. Said mounting strip is capable of gripping a carpet at said barbs and adapted to support wall panels along said support shelves and accommodate floor runners between said locating tabs. Said mounting strip is removable without harmfully affecting a carpet to permit relocation of a movable partition wall construction mountable thereon.

Abstract: An apparatus and method for automatically placing large plastic lids onto containers. Lids 24 are dispensed individually from magazine 11 onto slide 33. Each dispensed lid is individually retained at the bottom of the slide 33 for pickup by a container 41. The lid is urged onto the container by a pivoted roller 47 and further leveled by a roller 58 which is extended twice by a pneumatic piston to first contact a leading edge of the lid and to secondly contact a trailing edge of the lid. Thereafter a pneumatically operated lid securement means 61 comprising a convex plate 70' burps the air from beneath the lid and fully seats the lid on the container. The apparatus has various sensing means for sensing the depletion of lids from magazine 11, for sensing that a lid has been dispensed onto slide 33 and for sensing a container at the capping station. The sensing means control the various operations of the machine in proper sequence.

Abstract: Blocks or panels 10, more especially of porous or cellular structure, are faced with a fabric or web inorganic fibres, preferably in the form of glass fibre tissue, bonded to the block or panel by a composition 14 of thermosetting condensation polymer and gypsum, preferably in a ratio between 1:1.6 and 1:4.0. The amount of the composition is preferably such as to provide a film of minimal thickness over the surface of the fabric or web, corresponding to a glass: resin plus gypsum proportion of 8 to 25%. Such coatings when applied to foamed plastics, chip-board or glass fibre panels provide boards suitable for ceilings or partitions and having ample strength and flame resistance. The blocks or panels may be made continuously by applying fibrous tissues, impregnated with a fluid mixture of plaster and resin by roller spreaders, to the face of panel elements supported between release sheets, for example of polypropylene. Pressure may be applied and maintained, if desired, until the fluid mixture has set.

Abstract: A door frame comprising wood frame members including a strike jamb, a hinge jamb, and a header, said frame members each being recessed longitudinally to provide a rabbet having a major surface and a minor surface perpendicular to said major surface, a slot substantially coplanar with the major surface of said rabbet extending into a non-recessed portion of said member, and a substantially J-shaped metal frame reinforcing member having a major flange, a minor flange substantially parallel to said major flange, and a connecting web substantially perpendicular to said major and minor flanges, said minor flange engaging the major surface of said rabbet and extending into said slot, and the major flange of said reinforcing member extending in engagement with the outer surface of said member.

Abstract: A decorative soffit system for mounting on the bottom of vertically disposed ceiling tile to enclose a projection depending from the ceiling as disclosed. The soffit system having a U-shaped channel member adapted to rest on an inverted-T runner and said U-shaped channel member having a resilient spacer therein to hold a vertically disposed ceiling tile against one side thereof.

Abstract: A method for making a unitized, ready-to-install, mobile home ceiling structure is disclosed. The method comprises the steps of arranging a plurality of rectangular panels on a tunnel jig. A roof frame structure is then positioned and fastened on the back face surfaces of the panels by means of fasteners and adhesive along the bottom chords of intermediate roof frame truss members. The method additionally includes the step of fastening roof frame perimeter side edge rails and outer truss members to the panel arrangement perimeter by means of fasteners driven upwardly through the front face surface of the panels to extend through the panels and penetrate the side edges rails and outer truss members. The method includes the step of transporting the mobile home ceiling structure from the tunnel jig in ready-to-install condition wherein the setup time of the adhesive material does not restrict moving the unit.

Abstract: A combination of a hydroxy polycarboxylic acid and a starch hydrolyzate improves the compressive strength at early and late ages of a calcium sulfoaluminate cement.

Abstract: A combination of a hydroxy polycarboxylic acid and sucrose improves the water-demand, setting, and compressive strength properties of a calcium sulfoaluminate cement to a greater degree than would be the case if the hypothetical cumulative effect of two admixtures were operative.

Abstract: A homogeneous, free-flowing urea containing composition which has particular utility as an animal feed supplement or a fertilizer material and an improved process for preparing same are disclosed. In the process urea and particular forms of calcium sulphate are intimately mixed, optionally with calcium phosphate and one or more desired additives, and pelletized or granulated as by compression compaction. In one embodiment, micronutrients are blended into the urea-calcium sulphate mixture before compaction and the granules so produced may be subsequently utilized as a fertilizer supplement or in combination with primary nutrients as a complete fertilizer. In a second embodiment, the urea-calcium sulphate constitute an animal feed supplement to be blended with other, non-hygroscopic, nutrients such as calcium phosphate and the like in forming a silage or complete animal feed.

Abstract: A fire resistant aluminum door frame assembly is provided which comprises a partition wall having a door opening therethrough; a header assembly; opposing jamb assemblies; a strike assembly disposed along one jamb assembly; at least one hinge assembly disposed along the opposite jamb assembly; and a door member supported within said door opening by said hinge assembly and having a lockset engaging said strike assembly; whereby upon exposure to extreme heat, the door frame assembly accommodates expansion of the header and jamb assemblies without buckling, and said strike and hinge assemblies respectively maintain said door support and lockset engagement of the door member, wherein said door frame assembly attains a fire rating.

Abstract: A doorframe assembly for hollow-wall partition construction is disclosed and comprises metal backer jamb members adapted for attachment to opposite sides of a door opening, a metal header member adapted for attachment to an upper horizontal side of a door opening, vinyl jamb members snap-engaged with the metal backer jamb members, a vinyl header cover snap-engaged with the metal header member, hinge plate means for supporting a door attached within a hinge plate recess along a wall portion of a vinyl jamb member at the hinge side of the door opening, strike plate means adapted for receiving lockset means attached within a strike plate recess along a wall portion of a vinyl jamb member at the lockset side of the door opening, wherein said assembly provides an easily installed, finished, and mortised construction.

Abstract: Electrical power, instrument and communication cables constructed with combustible coverings can provide a pathway by which fire might spread. Cable fires within a room or compartment can be arrested by the construction of a properly designed "fire break" placed periodically along a cable run; and cable fire spread between rooms can be arrested by a properly placed "fire stop". Cable runs generally include a cable tray or raceway to contain the cables. An effective fire barrier, e.g., "fire break" or "fire stop" may be constructed in such a cable tray or raceway by filling a portion of the tray or raceway with a gypsum composition comprising gypsum plaster, an inert filler mixture of diatomaceous earth and lightweight expanded aggregate, and very small amounts of glycerin, boric acid and a corrosion inhibitor such as a boron nitride, boron nitrile or mixture of such boron compounds.

Abstract: A fire resistant floor and ceiling assembly comprising in combination; a plywood layer; a gypsum floor underlayment extending adjacent below said plywood layer; a series of steel joists located below said underlayment and supporting the plywood and underlayment; a space-apart multiplicity of self-drilling self-tapping screws extending downwardly through the plywood and underlayment, and engaging said steel joists thereby attaching the plywood and underlayment to the steel joists, said screws having upper threads and lower threads with an interrupting non-threaded mid-portion therebetween, the non-threaded mid-portion extending a distance substantially the same as the thickness of said plywood layer; and, at least one layer of third generation fire resistant gypsum board connected to, and supported below, said steel joists by connecting means; whereby said assembly contains no combustibles in the plenum between said underlayment and fire resistant gypsum board, and whereby said assembly attains at least a one

Abstract: A fire resistant ceiling furring system comprising support joists in generally parallel alignment, furring clips attaching furring channels to the joists, furring channels in generally parallel alignment at substantially right angles to said joists thereby forming a generally grid-like configuration, said furring channels connected at grid intersection points to said joists by means of said furring clips, fire resistant gypsum ceiling panels affixed at lower attachment surfaces of said furring channels, and, mineral fiber insulation provided for substantially the full expanse of the ceiling being disposed above, and supported by, said furring channels forming a continuous layer beneath said joists. Whereby upon exposure of the fire resistant ceiling furring system to heat from below the furring channels continue to support the mineral fiber insulation and remain engaged to said ceiling panels during heat distortion by means of said furring clips retaining the furring channels.

Abstract: A fiber-reinforced cementitious sheet is formed by first co-mixing in an air current reinforcing fibers such as glass fibers, and cementitious mineral materials in finely particulate form such as calcium sulfate hemihydrate, both in substantially dry form, depositing the mixture on a moving foraminous surface by means of the air current to form a sheet, applying water as by spraying in at least an amount which is stoichiometrically sufficiently to hydrate the calcium sulfate hemihydrate to the dihydrate form and to provide the necessary degree of plasticity to the mixture, densifying the sheet by compression, and setting and drying the sheet. A pair of sheets may be utilized as face sheets and, prior to setting, combined with a core formed of for example a calcium sulfate hemihydrate slurry, and the sheets and core then set and dried to form a paper-free gypsum board having excellent strength, surface hardness, and fire-resistant properties.

Abstract: An accessible partition wall construction comprising in combination: Two parallel spaced-apart rows of wall panels; channel-shaped studs disposed at panel joints; stud clips engaging the studs at a flange and rib; interchangeable panel clips removably engaging the stud clips; whereby the partition wall construction allows accessibility by lifting a panel upward to slide an overlapped panel clip off a stud clip and then moving the panel horizontally away from the construction, and wherein reinstallation is accommodated by reversing the procedure, whereby said panel clips are interchangeable at either side of the joint and wherein extending projections of said panel clips are substantially identical and the panel clip is symmetric about a horizontal plane.

Abstract: An attachment system for suspended drywall ceiling panels is disclosed. The attachment system comprises a panel support grid having a series of main-runners and cross-runners disposed with lower panel attachment surfaces in generally co-planar relationship and said grid having intersection points at main-runner and cross-runner crossings. The attachment system has attachment clips positioned at said intersection points interconnecting cross-runners and main-runners. The attachment clips being integrally constructed from light-gauge steel and having a box-like configuration with two opposing vertical walls and opposing upper and lower horizontal walls wherein the upper wall centrally separates into halves. The upper wall halves include upwardly extending tabs with tab connecting means releasably connectiing both halves. The opposing vertical walls of the attachment clip each having an oppositely extending cross-runner attachment flange.