Abstract: A floor structure comprises a flooring arranged on top of a lower and an upper layer of parallel joists with a uniform mutual distance, the joists of one layer extending substantially perpendicular to the joists of the second layer. The lower layer of joists are arranged on chocks, at least one of which is located below the center between the upper joists arranged thereabove. Resilient spring elements are provided at the intersections between the two layers of joists. The layers of joists include prefabricated identical members fitting in one another, each member comprising a predetermined number of joists. The joists of the lower layer are equally long and project by half the joist distance of the upper layer of joists beyond the outermost joist at the adjacent end of the upper layer of joists.

Abstract: A prefabricated joint assembly molded of a single piece of plastic and used for connecting decorative channels or reveals on the exteriors of buildings. Reveals are typically used to form an aesthetically pleasing effect on the exterior surface of a building that will be covered with stucco, mortar, cement, plaster, drywall, or the like. This invention provides a relatively inexpensive joint that vastly simplifies the job of joining reveals at the construction site.

Abstract: A suspended ceiling system having a trim strip and ceiling runners. A trim connector fastens the trim strip to the ceiling runners. The trim connector being a two part structure is fastened to the trim strip by a releasable fastening action. One of the two parts of the trim connector is also fastened to the ceiling runner.

Abstract: The universal attachment clip will act as an attachment device for attaching micro cornice trim to each of the major grid systems. The clip will allow attachment and registration of each of the micro cornice trim profiles to 9/16", 15/15", or bolt-slot grid. The registration of the micro cornice profiles to the grid can be at different angular positions.

Abstract: A combination is disclosed wherein an inverted T-shaped ceiling runner is connected to a decorative element by a connector. The decorative element has parallel grooves into which an upper portion of the connector can be positioned in the grooves to hold the connector relative the decorative element. A lower portion of the connector extends down to the inverted T-shaped ceiling runner and is fastened to the vertical web thereof to position and hold the decorative element in a fixed relationship to the inverted T-shaped ceiling runner.

Abstract: A floating roof for use in a storage tank for liquid petrochemical products has a frame comprised of girders having grooved slots in top and opposite side surfaces thereof along substantially the entire lengths of the girders. The slots are capable of receiving threaded fasteners and flanges at any location along the length thereof, permitting cross girders to be bolted to main girders at virtually any location along the length of the main girder and deck sheeting to be bolted to the tops of the girders at virtually any location along the length of each girder, without the need to drill holes. Adjustable legs for supporting the floating roof on the bottom of the storage tank are mounted on the girders, and are coupled to the junction of a main girder and a cross girder by a support housing assembly. A manway assembly and bleeder vent assemblies are also coupled to girder junctions.

Abstract: A retainer clip for use with concrete form tie for retention of reinforcing rods has a one-piece body which includes a header, and first and second clips extending angularly therefrom, spaced apart in a first direction, and defining therebetween a generally u-shaped opening sized to slidably receive a reinforcing rod of generally circular cross section. Each of the clips include first and second prongs spaced apart in directions lateral to the first direction, and at least two prongs of the clips further define therebetween a narrow generally rectangular passage which intersects at least a portion of the u-shaped opening, and is sized to receive at least a notched form tie of generally narrow rectangular cross section. The retainer clip secures the reinforcing rod in position substantially against the form tie in a notch to inhibit both relative motion in the first direction and substantial separation therebetween.

Abstract: Channel beams of a particularly advantageous design are provided. These can be assembled to form a non-welded support plate in a confined environment having any desired configuration and later disassembled and reused elsewhere. The support plates are designed to support tower packing materials whether of the structured or dumped kind.

Abstract: A vinyl ceiling grid structure for supporting ceiling panels comprising a two-way connecting member, a one-way connecting member, an angled slat, an inner angled plate, an outer angled plate and a receiving base. Each of these components is formed integrally with plastics and can be selectively assembled together to form a grid system. The one-way and the two way connecting members are provided for the connection of the partitioning board to form the grid structure suspended in the ceiling. The angled plates can either be selected from the inner type or the outer type depending on the application. The receiving base is inserted at the end of the partitioning board so as to be able to connect to the angled slat, forming the vinyl ceiling grid structure for supporting the ceiling panels.

Abstract: A timber connector (10) is disclosed comprising a pair of spikes (11 and 14) disposed at the ends of a cranked stem portion (12/13). The spikes (11 and 14) may be positioned in vertical planes (17 and 18) extending angularly to one another such that the connector (10) may be used for interconnecting respective face of adjacent timber members (15 and 16) which are perpendicular to one another. The spikes (11 and 14) form acute angles with the portions of the stem (13/13) adjacent thereto and the secondary spike (14) tapers away from the axis of the primary spike (11) towards its outer end (25) whereby the timber members (15 and 16) are drawn together during rotation of the stem portion (12/13) about the driven primary spike (11) as the secondary spike (14) is driven home.

Abstract: The invention concerns a transom construction for the mounting between two glass panes, in particular window glass panes, in which the transoms that are assembled to form a transom cross consist of hollow profiles and at least two transverse profiles that are flush with each other are attached to a main hollow profile at a predetermined angle to create a transom cross and encompass the main profile in an overlapping manner. The connection of the hollow profiles to the transom construction is executed with the aid of connecting elements with insertion openings that extend in the longitudinal direction and can be solidly inserted into the transverse hollow profile. A four-edged connecting pin is also provided, which penetrates the insertion opening in the main hollow profile and is fitted into the recess in the connecting elements.

Abstract: The present invention relates to a bracket for mounting fence rails and other items to common rolled metal posts, including a flat front face and a rearwardly projecting apertured web. Most commonly these are T-shaped in cross-section. The bracket includes a front plate substantially wider than the front face of the post, two rear plates behind the front plate attached to the edges of the front plate, and two mounting plates projecting rearwardly from the edges of the rear plates. The mounting plates have apertures in registration with each other. The mounting plates are attachable to the apertured web to locate the front plate in abutting relationship with the front face of the post. The front, rear, and mounting plates define a slot shaped to received the post. The width of the front plate is sufficient to include apertures for fasteners to secure fencing members, which are not obstructed by the front face of the post. A strap can be threaded through these apertures to secure a fence member.

Abstract: A wood post assembly for supporting signs or mail boxes is constructed entirely of wood parts without metal fasteners and without adhesives. It includes a post, cross beam and beam support member. A mortise runs through the post and the cross beam has a tenon extending through the post mortise. A first dowel pin extends through an aperture in the tenon and bears against the rear of the post. The support beam lies against the front face of the post with its upper end supporting the cross beam. A second dowel pin extends through axially aligned apertures drilled through the support member and post. The top surface of the support member has an inclined plane matching that of a recess formed in the lower surface of the cross beam.

Abstract: A ceiling frame joint structure comprises a first member and a second member each of which is in the form of an elongated, downward-facing U-shaped channel defined by a top wall and two opposite side walls to receive therein a portion of a bar member which constitutes the ceiling frame. Each of the first and second members comprises a middle section interposed between two opposite end sections and the side walls of the middle sections are removed to form notches which have such a size that the second member is receivable within the notches of the first member in an orthogonal manner to have the top wall thereof crossly overlapped under the top wall of the first member. A fastener penetrates through holes formed on the middle sections of the top walls to secure the two members together. Holes are provided on the side walls of both members to allow nails or screws to penetrate into the bar member received within the channels to secure the bar members within the first and the second members.

Abstract: A fiber optics cable raceway is formed of main channel members and telescope members. The main channel members have a generally U-shaped cross-section with a base, sides, and, at the top, inwardly extending lips. The telescope members have the same cross-section, but are slightly larger so they can fit about the main channel members for a longitudinally sliding fit. By alternately, interfitting main members and telescope members and adjusting the length by telescopic sliding, a raceway of the desired length can quickly be assembled. Small locking clips can then be fitted about the respective overlapping lips of two members to prevent further sliding. The raceway can be installed below the floor by the use of brackets hanging on pre-existing floor-supporting pedestals. It can be installed above a dropped ceiling by the use of hangers clamped to the grid struts of the ceiling. The locking clips serve to electrically interconnect the channel members and the telescope members.

Abstract: The structure of an office furnishing system is constituted by a plurality of modular elements which can be interconnected in various possible configurations, the same basic elements being usable to form work stations as well as partition walls and screens, integrated into a harmonious unit. Each modular element includes a framework of upright members and cross members interconnected together. Each upright member and each cross member is formed from two parallel, profiled, metal sections spaced apart and interconnected by in at least two regions by first and second connectors respectively. The first and second connectors have complementary engaging surfaces for quickly connecting the cross members to the upright members.

Abstract: In a method of constructing a ceiling frame to support a filter at the ceiling of a clean room, the method is characterized in that a number of divisional frame units are formed, each in a rectangular frame, to frame a filter unit to be installed, that those divisional frame units are positioned one after another at the ceiling of the clean room, that the ceiling frame is formed by connecting, to unify, abutting frame members of the divisional frame units, and that the divisional frame units are hanged at the ceiling with hangers applied at the abutting portions of the divisional frame units.

Abstract: A staked-on connector element for an end of a cross member includes first and second abutment surfaces on opposite sides of a third abutment surface which engages a web of a main member as the connecting element extends therethrough. The connecting element further includes one or more embossments to increase the stiffness of the element and, preferably, has mounting apertures lying on a line forming an angle of approximately 55.degree. with the center line of the connecting element with the at least one embossment extending therebetween.

Abstract: A fiber optics cable raceway is formed of main channel members and telescope members. The main channel members have a generally U-shaped cross-section with a base, sides, and, at the top, inwardly extending lips. The telescope members have the same cross-section, but are slightly larger so they can fit about the main channel members for a longitudinally sliding fit. By alternately, interfitting main members and telescope members and adjusting the length by telescopic sliding, a raceway of the desired length can quickly be assembled. Small locking clips can then be fitted about the respective overlapping lips of two members to prevent further sliding. The raceway can be installed below the floor by the use of brackets hanging on pre-existing floor-supporting pedestals. It can be installed above a dropped ceiling by the use of hangers clamped to the grid struts of the ceiling. The locking clips serve to electrically interconnect the channel members and the telescope members.

Abstract: A window grid includes plural pairs of orthogonally intersecting plate members adhesively mounted onto a window pane for simulation of a grid structure, as well as providing for strengthening of the window in use.

Abstract: A shed including a number of beams coupled between a pair of bars each having a pair of flanges formed in an upper portion, a number of supports each including a pair of ribs engaged with the flanges of the bars, and each having an extension formed on each of two walls, a slot formed in each side of the beam for engagement with the extensions of the walls, each of the supports including a resilient member extended upward for biasing the beam upwards, whereby, the beams are stably coupled between the bars.

Abstract: A wooden drop ceiling system is provided which is readily attached to an existing metal T-rail system. A uniquely shaped grooved ceiling tile support is clipped on to the existing T-rail supports by means of U-shaped clips. Cross supports are then clipped on to the cross supports of the T-rails and the basic framework for the wooden ceiling tiles is provided. Transition blocks are also attached to the existing T-rail supports at the intersection of the supports and cross supports. Attractive wooden ceiling tiles of various designs and shapes are then placed into the support grids thus creating an attractive and readily installed wooden drop ceiling.

Abstract: A suspended ceiling system which uses only two components to form main beams of an inverted T-shaped cross-section, cross beams of an inverted T-shaped cross-section and wall hangers of an L-shaped cross-section. A first, upright one of the components has a generally rectangular cross-section with one longitudinal edge recessed. The second component has a central groove for receiving the first component. The sides of the groove are stepped to give two steps which complement the recess edge of the first component. The first component can be fitted with its plain edge in the central groove to form an inverted T-section; with its recessed edge engaging one step to form an L-section, and with its recessed edge engaging the other step to form a J-section. The system may conveniently be sold in kit form comprising the two components and, possibly, joining members for joining cross beams to main beams.

Abstract: A vertical movement clip and C stud system wherein there is provided a generally U shaped clip secured to a building support structure having a clip web portion and two legs projecting from said web with stiffing members and a slot projecting through said clip web and into said legs with the web on one side of said slot being on an offset plane from the web on the opposite side of said slot, and a C stud adapted to interfit with said clip to allow vertical movement of said stud yet prevent outward horizontal movement of said C stud. Said C stud is adapted to receive a non-load bearing exterior finish building panel.

Abstract: An elongated C-channel construction member made of a wood composite material. The C-channel has a blank panel with a generally planar panel front and panel back, a top, a bottom and two sides. The panel front has two grooves extending from the top to the bottom of the blank panel. Each groove has a depth approximately equal to a thickness of the blank panel. A flat back support is adhered to the panel back. The flat back support retains the blank panel with the grooves in a sheet form. The two grooves divide the blank panel into a web and two flanges. The flanges fold upward and generally perpendicular to the panel front thus forming the C-channel.

Abstract: A decorative panel is disclosed, in particular for covering ceilings.The decorative panel is placed in a rigid rectangular frame formed of four L shaped angle irons, against the outer faces of which shaped sections are fitted, one for each side of the frame, the longitudinal edges of the shaped sections being bent inwardly of the frame, the edges of the decorative panel being held by clamping, substantially over the whole perimeter of the panel, between a flange of the L shaped angle iron and the bent longitudinal edges of the shaped sections.The shaped sections are fixed on the straight sides of the angle irons by means of a tongue cut out in the shaped section and an indentation formed in the straight side of the angle iron.

Abstract: The invention relates to a cross-connector of plastic material for hollow profiled window grill bars introduced into the insulating space of an insulated window assembly consisting of two panes. Such a cross-connector consists of four legs positioned perpendicularly to one another and being configured such that they be inserted into the ends of the hollow profiled window grill bars in order to become fixed with these bars which are fixed to the peripheral frame of the window at their other ends. The present invention achieves the advantages of increased flexure and torsional strengths, and lower weight, while using a plastic material containing break-throughs, or alternatively, recesses. In addition, angled pins positioned oblique to the direction of insertion of the cross-connector legs result in a tighter, more permanent connection.

Abstract: A stabilizer for securing muntin bar within insulating glass windows has a primary insert, a secondary insert, and a pad which is attached to the primary insert by an attaching means. The primary and secondary inserts are insertible into open ends of muntin bar to secure the two ends into a desired angle. The secondary insert is attached to the primary insert by means of a pivot, allowing the same stabilizer to be used for a variety of angles. The pad is adjustable allowing it to fit against an associated spacer bar and secure the muntin bar between the panes of the insulating glass window.

Abstract: A clip provides a method for securing suspended ceiling tees to each other at an angle, especially but not necessarily at an angle other than a right angle. The clip has a body portion, an integral first tab portion projecting from one end of the body portion, an integral second tab portion projecting from the other end of the body portion, and preferably two integral tongue portions projecting from the body portion along either side of the second tab portion.

Abstract: A two-part clamping assembly and method for applying the clamping assembly to intersecting I-beams is disclosed. The clamping assembly is particularly beneficial at uniting the undercarriage I-beams of a mobile dwelling to intersectingly smaller I-beams of an auxiliary support system, during moderate and/or severe seismic disturbances. The clamping assembly includes a two-part connector designed to tightly engage the upper flange of the lower and smaller I-beam in such a manner that a clamp-lip horizontally protrudes over and is parallel to the bottom flange of the upper undercarriage I-beam. The clamp-lip is engaged at the bottom flange to the undercarriage I-beam, in the event of an earthquake, enabling the undercarriage I-beams to pickup the auxiliary support system. At the cessation of quake conditions, the undercarriage I-beams are reposited to the I-beam of the auxiliary and emergency support system.

Abstract: A bearing connection in a building structure for distributing downward gravity bearing loads through fasteners driven through sheet metal connectors and into a load carrying wood structural member such as a floor joist, a roof rafter or a wood truss member, through a pair of sheet metal connectors and into a wood plate member via fasteners driven through the connectors and into the plate member. Seismic, hurricane or other upward forces are also resisted by the same connectors and fasteners. Relative movement between the load carrying structural member and the plate member is also resisted in a generally horizontal direction transverse as well as parallel to the plate member.

Abstract: A horizontally curved grid tee for suspension ceilings is bent in the direction parallel to the plane of the flanges of the grid tee. Such grid tee is provided with end connectors and openings so that the grid tee can be assembled in a suspension ceiling grid combining curved grid tees and/or straight grid tees to produce aesthetically pleasing patterns. When panels are installed in the openings defined by the curved grid tees, appropriate mating curves are formed in the panels so that the panels are supported at their periphery. A method and apparatus for producing such grid tees involves curved tooling which cooperates to confine a straight grid tee as it is bent to the curved shape. The tooling provides grooves into which the flanges project during the bending operation. Such grooves are constructed and dimensioned so that the inner portion of the flange which is subjected to compressive stresses is not buckled.

Abstract: A metal wall frame structure for a building which includes a horizontal top plate, a horizontal bottom plate and a number of vertical studs. The top and bottom plates are identical each being of U-shaped channel section, having side walls and a base, and having a plurality of paired inwardly directed tabs arrayed along each of the side walls. The studs each are of a U-shaped section having side walls and a base. The studs are of such a width that their ends nest neatly within the plates. The wall frame structure is characterized in that each stud is adapted to be nested in a plate between two adjacent pairs of tabs or around a single pair of tabs, or both. Each stud has adjacent at least one end and adjacent to each side wall at least a pair of aligned apertures aligned transversely to the axis of the stud.

Abstract: Suspension system for ceiling panels, comprising a supporting grid of interconnected bars intersecting one another at right angles, said grid being supported below an existing ceiling structure, and said sectional bars when fitted having a vertical web portion which has fitted at the bottom end on either side thereof horizontal side flanges for the purpose of supporting the ceiling panels. The web portion of the sectional bars at the top end being provided with a hollow tubular part and the sectional bars being connected to each other by means of connecting elements each having at least one insertion part accommodated in the tubular part. The tubular part is elongated in shape, viewed in the vertical direction of the web portion. The sectional bars are suspended at regular intervals by means of hooked suspension elements. Said hooked suspension elements as well as the connecting elements being formed of sheet material.

Abstract: A non-welded plate for supporting packing materials or limiting the upward movement of such packing materials in a packed column of a gas and liquid contacting apparatus is comprised of a plurality of first and second support beams. The first support beams have means for fastening to internal support members of the apparatus affixed thereon. The first and second support beams are essentially perpendicular to each other and are attached together by retaining means, such as a pin. Voids between the support beams may be covered with screen to provide further support or limitation.

Abstract: A window grid to change the appearance characteristics of a window having a single large window pane to a window having a plurality of smaller window panes or lights. The window grid includes at least one muntin having a thin, rotatable and eccentrically mounted cam lock at each end for engaging the window sash along the surface of the window pane and inwardly of the glazing to securely but detachably lock the muntin to the window sash. The window grid also includes an intersection between muntins which have the same external dimensions with one of the muntins including a passageway therethrough which has a periphery formed by slightly deforming outer portions of the muntin to receive the other muntin therethrough with a friction locking member securing the muntins in their intersected relation.

Abstract: A perimeter clip to tie the end of a beam in a dropped grid ceiling to an angle wall molding. The clip is in right angle form with one leg hooked to the molding and the other leg formed to receive and secure the end of a beam. The clip is desirably formed from a flat, stamped piece of metal.

Abstract: A basic joint member and a plurality of application joint members are formed so that a side plate portion or end plate portion is fitted to the end face of a construction member constituting a post, a beam or the like and a coupling plate portion extending from the side plate portion or end plate portion orthogonally to the side plate portion or end plate portion is fitted in a groove formed in the end face of the construction member or is gripped between construction members including two parallel members, and the connecting plate portion is clamped by a clamping member. The basic member containing a longitudinal construction member is combined with and connected to at least one application joint member for a lateral construction member, a lateral construction member orthogonal to the first-mentioned lateral construction member and an oblique construction member to construct a joint apparatus for construction members.

Abstract: A modular support system for supporting a plurality of high efficiency particulate air filters (HEPA). The modular support system includes a grid of filter support members joined at their intersection by connectors. The support members include first and second side walls and a bottom wall forming a substantially U-shaped channel for receiving a sealant. The first and second side walls extend substantially perpendicular to the bottom wall. The first and second side walls each include a substantially triangular shaped lip extending along their upper edge for releasably securing the support member to an adjacent connector. The connectors include at least two arms extending radially from a center portion. The arms include first and second side walls and a bottom wall forming a substantially U-shaped channel. The dimensions of the U-shaped channel of the arms are such that the arms fit snugly in the U-shaped channels of the corresponding support members.

Abstract: A device for incorporating a layer member in a face construction of a building which is capable of employing a soft or flexible layer member as well as a rigid one, improving operation efficiency, ensuring safe operation at a height, and readily and precisely positioning and fixing a layer member in a face construction. The device comprises a base element, a connecting element mounted on the base element and a holding element mounted through the connecting element on the base element, the base element being adapted to be held on a supporting member of a building and hold a layer member in cooperation with the connecting and holding elements. The device may include a mounting member mounted on the holding element.

Abstract: A frame and muntin assembly for use in a window or with another thin panel for a building structure. In a window the frame has interconnected frame members extending along the periphery of the window pane and each having an elongated outwardly protruding segment located outside the periphery of the window pane and offset in front of it, an elongated blind groove between the outwardly protruding segment and the periphery of the window pane, and an elongated inwardly protruding segment offset behind the outwardly protruding segment and engaging the front of the window pane. Muntins extend across the front between different locations along the grooves and are attached to the frame members by fastener elements received in the grooves. The muntins are flush with the outwardly protruding segments of the frame members.

Abstract: First and second panel members each formed with an elongate slot extending from one edge of the panel member and an enlarged opening into which the slot extends are connected together at an angle by sliding the slot of one of the panel members lengthwise through the slot and opening of the other panel member and into embracing engagement with material of the other panel member beyond the opening therein until the openings of the respective panels are mutually aligned in the lengthwise direction of the slots. A locking key device having substantial rigidity lengthwise of the slots is fitted in the openings when the panels are assembled to prevent their separation. The locking device may be provided in various decorative forms.

Abstract: Ceiling panels, formed from metal rods welded together in a grid pattern, are easily installed in suspended subceilings of the type in which panels are supported on bottom flanges of a framework of inverted T-bar rails. In a lower layer of the panel, an array of spaced parallel rods is tied together across each end by an end rod to form a perimeter which fits within a cell opening of the inverted T-barsupport framework, while rods in an adjoining upper layer of the panel, oriented perpendicular to the rod array in the lower layer, are made to extend beyond the lower layer perimeter so as to support the panel, along two opposite panel edges, upon the upper side of bottom flanges of the support frame rails. The perimeter rods in the lower layer in combination with with the exposed portion of the support rail flanges produce the finished effect of a uniform border around each panel.

Abstract: A mounting means for mounting a scroll member onto a bar member comprises a mounting member secured in a channel in a section of the scroll member. The mounting member has resilient leg members that terminate in hook-shaped free ends extending outwardly from an inner surface of the scroll member. A securing member has hook-shaped legs that are matable with the hook-shaped free ends when the scroll member is positioned on the bar member thereby causing the resilient leg members to frictionally engage respective sides of the bar member securing the scroll member in position thereon.

Abstract: In the case of a counter-ceiling comprising a suspended supporting skeleton consisting of intersecting longitudinal and transverse supporting rails of substantially T-shaped cross-section, it is proposed to implement the joints between the rails at the points of intersection by providing that the T-shaped section of each supporting rail comprises a longitudinal hollow space in the vertical main web, and by inserting the central mounting web of separate connection elements of likewise T-shaped configuration into the longitudinal hollow space of a first supporting rail, and fastening at least one of the base webs of the connection elements at the outside of the vertical main web or a perpendicularly extending supporting rail.

Abstract: This invention provides several embodiments of a metal clip which is snapped onto a grid system and which anchors it through to place on a metal stud wall system. These metal clips makes it possible to erect metal studs of a housing and/or office construction without using electricity and without damaging the grid system so that the former can be removed and the ceiling of the construction does not have to be patched and/or replaced. In one embodiment of the metal clip, the metal clip has a pair of downwardly extending spaced spring sides connected together by a flat section. The spring sides are positioned over a cross metal beam and/or track. An upwardly extending clip is attached to the flat section and positioned in a fixed position for coupling of the grid system. In a second embodiment, the upwardly extending clip is made rotatable to connect to the grid system in different positions.

Abstract: The mounting cross-piece or node assembly serves for the leak-tight connection of the cut ends of profile sections with one another. These profile sections are provided with an upper lengthwise extending opening and thus form a support or carrier construction or framework in the form of a grid or grid structure suspended at the ceiling of a room, especially a clean room. Filter frames and clean room filters can be mounted in gas-tight fashion in the grid structure. The mounting cross-piece assembly comprises at the cut surfaces of the profile sections to be interconnected and at the sides of the mounting cross-piece confronting such cut surfaces connection elements which can be secured in both of these components.

Abstract: A security grille is disclosed in which corresponding ends of rods, preferably of square cross-sectional shape, are clamped by initially-separate halves of clamps. The halves of each clamp become connected permanently to one another by a nub/bolt combination, wherein the nut has a drive head which shears off when the connection has been properly made. In one embodiment, the clamp halves are made by drop-stamping and the rods are made from hot-rolled steel bars. Alternatively, the clamp halves may be made as pressings and the rods may be made from cold-drawn steel bars. The clamp halves are provided with decorative covers.

Abstract: A ceiling system constituted of inverted T support members arranged in a horizontal grid, wherein T members aligned in end-to-end relation are interconnected by a splice member bridging the joint between them and having a pair of horizontally spaced clips respectively projecting through openings in end portions of the webs of the interconnected T members. The splice member is a sheet element having portions bent laterally and downwardly about horizontal bending axes to form the clips, and side edges bent obliquely about vertical bending axes for bearing against the webs of the T members to cooperate with the clips in securely interlocking the splice member and the T members.

Abstract: A lattice comprises a set of tubular strips fastened together at designated crossings that have openings formed in the surface of each strip that faces and is overlayed by the other strip. The tubular strips are fastened together by resilient fasteners that are snapped into the strip openings.