Abstract: A joint structure for a structural bar assembly, wherein a first bar and a hollow second bar are assembled by inserting of fitting a web of the first bar into a transverse slot of the second bar, and by restoring a stopper plate of the web elastically or forcibly to an upwardly inclined state so as to allow a top end of the stopper plate to engage or contact with an inner surface of a front wall of the second bar after the stopper plate passes through the slot. Joint portions of the first bar and the second bar are not pressed or hit strongly. There is no fear of rusting and eroding in the joint portions owing to injury of plating or painting layers.

Abstract: The invention provides a slot in the runner and lugs on a clip to allow sliding contact between the runner and the clip. This allows for expansion of the runner during a fire condition. The clip is fastened to the vertical web of an adjacent runner to fasten the runner structures together. Normally, a clip is provided on each end of one runner structure and it is mounted between two rigidly positioned other runner structures and the runner with the clips is capable of expansion and contraction under fire conditions without buckling.

Abstract: A strap for attaching together wooden members having faces disposed in different planes. The strap includes a first connecting plate disposed in a first plane, the first connecting plate having a plurality of teeth projecting generally orthogonally from a surface of the first connecting plate which teeth are adapted to be embedded in the face of a wooden member; a second connecting plate disposed in a second plane which is not parallel to the first plane, the second connecting plate having a plurality of teeth projecting generally orthogonally from a surface of the second connecting plate which teeth are adapted to be embedded in the face of another wooden member; a connecting strip having first and second ends and an intermediate section, the first end being joined to the first plate and the second end being joined to the second plate; and the first and second plates each having a common centerline which passes through the connecting strap.

Abstract: A clamp is disclosed for joining fiberglass reinforced plastic grid members in order to provide a corrosive-resistant frame work for a suspended ceiling. The grid members are of an inverted T configuration. The flanges of the cross members are cut back so that the web of each cross member rests on the flange of a support member with the flanges of the support and cross members flush. The keepers of an integrally formed stainless steel clamp extend through holes in the web of the support member on either side of the web of the cross member. The legs of the clamp straddle the web of the cross member and a cross piece of the clamp is received in a notch in the top of the web. In this position the clamp is stressed and so provides a force holding the cross member on the flange of the support member.

Abstract: In a sub-ceiling system having removable modular panels of intersecting thick louvers defining a grid pattern with open cells, supported in a framework of suspended rails of inverted T cross-section, the panels are surrounded by perimeter strips attached to the ends of the louvers. The perimeter strips integrate visually with the exposed lower flange portion of the support rails to simulate louvers so as to conceal the panel boundaries and present the overall appearance of a monolithic grid pattern over the entire finished ceiling area while providing the utility and convenience of damage-resistant modular panels which are extremely easy to install and remove.

Abstract: The disclosure herein describes a joint consisting of three serially-interconnectable members each including a cut-away section; the volumes defined by the cut-away sections of the first and second are equal and L-shaped. These two members, once assembled, define a cut-away section, the volume of which is rectangular. The volume of the cut-away section of the third member which serves to interlock the three pieces together equals the sum of the said L-shaped volume and the rectangular volume. One application of the joint of the present invention is in furniture support structures such as tables, shelves or the like.

Abstract: A suspended ceiling system having main runners and/or members extending parallel with the cross members spaced therealong to form rectangular sections, the cross members being provided with tongues extending from the end and received in an aperture or slot in the web of the main member with the tongue being provided with spaced abutment surfaces separated by an elongated aperture extending parallel to a bead of the cross member and the tongue having abutment surfaces and flaps for coacting with the tongue from the opposite direction to form an end-to-end connection between the cross members. The elongated aperture besides spacing the two abutment surfaces that engage the web of the main member to hold the cross member in place provides an aperture on each side of the web of the main member for receiving a clip such as a seismic clip to positively lock the members together.

Abstract: A frame connecting member of a kite formed as a unitary body and of an elastic material comprises a main body whose front and rear ends are formed as projections provided with kite string mounting holes and whose center is formed as a base with a through hole in the longitudinal direction for a longitudinal frame member; and supports provided respectively at the right and left outer sides of the base on the same straight line in the direction which perpendicularly intersects the axis of the main body. The supports can be tilted to a certain angle with respect to the straight line and are provided with holes into which are inserted lateral frame members which perpendicularly intersect the through holes. The corners on the main body side of the supports come in contact with the main body so as to prevent any further tilting. The kite string mounting holes are directed in the same direction as that of the through hole of the base.

Abstract: A welded structural frame for a railway car wall is disclosed as including a pair of aligned U-section vertical members welded to opposite sides of a U-section longitudinal member and a reinforcing insert welded between the sides of the longitudinal member in alignment with the vertical members to provide a frame substantially free of welding distortion. A method of making such a frame is also disclosed as including securing longitudinal and vertical members in a fixture, welding the vertical members to opposite sides of the longitudinal member and then welding a reinforcing insert between the sides of the longitudinal member in alignment with the vertical members.

Abstract: In an electrical switchboard, the body of an aluminum connector is welded to a riser bus. Bolts clamp a horizontal busbar in electrical connection with the connector body and, at the same time, fixture the horizontal busbar with a projection of the connector body protruding through an opening in the horizontal busbar. The projection is then welded to the horizontal busbar along the edges of the opening therein to create a bolted/welded joint electrically connecting the horizontal busbar to the riser bus. The projection is of sufficient height to accommodate plural coextensive horizontal busbars of a multiple bar bus run, common, bolted/welded electrical connection with the riser bus.

Abstract: A folding easel is provided wherein the two uprights of the easel are provided with complementary mortises or notches which hold the two uprights together at a fixed angle when the two uprights are held together with a clamp. The clamp means can be released, allowing the two uprights to be held in a parallel relationship for transportation or storage.

Abstract: A decorative building panel is disclosed for mounting on a wall surface. Particularly, a panel in the form of an imitation shutter. The panel is more rigid than present types of simulated shutters, also the panel may be shipped to the site in kit form and easily assembled in the field. The panel has a plurality of slats arranged side by side and at least two spaced apart straps extending across the slats. Connecting means are provided at each of the intersecting positions between the straps and the slats, the connecting means being integral with each of the straps for rigidly connecting the straps to the slats, and spacer means at each of the intersecting positions for spacing the panel from the wall surface.

Abstract: A fence is disclosed having posts with grooves which receive an enclosure or sleeve into which the fence rail end portions are inserted. The enclosure or sleeve may be held by a retaining bolt which passes through the post at the location of the groove in the exterior surface of the post. The post may be made of subsequently hardening settable material such as concrete. In such case the post may have a centrally cast rod with a bolt secured at right angles to the rod so as to protrude out of the surface of the post. Alternatively, the bolt may pass completely through the post and the enclosure or sleeve.

Abstract: A separably connective flexible toy assembly comprises a plurality of generally flat elongated geometric flexible toy members each of which has at its opposite ends complementary fastener means, at least one of the members having a slit intermediate its length through which another of the members may project whereby to provide a multi-arm configuration, each of the arms being bendable and twistable along its length such that the fastener ribs and grooves of the arm ends are interlockable with fastener ribs and grooves of another arm end of the same member or of another member.The members are particularly adapted to be made up from an extruded section formed from synthetic plastic material and severed to provide the individual members.The assembly may be supplied as a kit having a plurality of separate members adapted to be assembled together by the user.

Abstract: A grid for a fire-rated suspended ceiling includes a plurality of identical parallel spaced main beams and a plurality of identical parallel spaced cross tees supported by the main beams, the main beams and cross tees each having a substantially inverted T cross section and each including coupling means integral with the ends thereof, the coupling means for each main beam featuring a laterally offset tongue and an integral offset bulb end portion that is crushed to reduce its lateral dimension and to form a stiffening rib, whereby relative is facilitated.

Abstract: A transformer mounting assembly is disclosed for mounting a plurality of current transformers on a wire. A pair of parallel mounting plates are positioned normal to one another with one of the mounting plates having first and second current transformers mounted on the same side of the mounting plate at the opposite end portions and the engaging mid portions of the mounting plates having a third current transformer mounted thereat with the third current transformer being at the other side of the mounting plate from that of the first and second current transformers. The opposite end portions of the other mounting plate have clamps mounted thereon with the clamps being contoured to releasably clamp the assembly to a neutral wire with the other mounting plate extending along the wire.

Abstract: A framing system for a building, house, storage cabinet, or the like employing a plurality of novel structural members or clip-in-joists and a plurality of other structural members, such as channels, I-beams, or the like. The clip-in-joists are special channel members or extrusion joists which have a slot or cut in each leg thereof opposite each other and near the end of the joist. The slotted end section of the joist is adapted to be inserted or snapped-in a second structural member, such as an I-beam or channel member or other structural member having a similar receiving configuration. The member is preferably made of structural aluminum, but can also be made from metals such as iron, steel and the like or plastics such as PVC, ABS, styrene and the like. A wide variety of structural materials may be used, depending upon the particular requirements of the end or resulting construction.

Abstract: A cross arm hanger support is disclosed and adapted to be attached to a gym set pipe of 2 inch OD or 21/2 OD for suspending therefrom a hanger for a swing glider, pendulum seesaw, lawn glider, and the like. The support includes a cross arm and a clamp each of which have at least one set screw to prevent rotation of the support relative to the pipe. The cross arm is slit to provide for expansion of the same when it is applied to a 21/2 inch OD pipe.

Abstract: A structural connection or clip-in joist especially adapted for a framing system for a building, house, storage cabinet, or the like. The connection comprises a special channel extrusion joist having a slot or cut in each leg thereof opposite each other and near the end of the joist or structural member. The slotted end section of the joist is adapted to be inserted or snapped-in a second structural member, such as an I-beam or channel member or other structural member having a similar configuration. The members are preferably made of structural aluminum, but can also be made from metals such as iron, steel and the like or plastics such as PVC, ABS, styrene and the like. A wide variety of types of structural materials may be used, depending upon the particular requirements of the end or resulting construction.

Abstract: A grid or lattice structure for a nuclear reactor fuel element support in accordance with the invention includes two components that are successively joined by electron beam welding. Extruded cruciform bars which provide the lattice nodes and flat plates which interconnect these nodes, are for example, typical components. Electron beam welding these components together avoids the need for a filler metal, and the welding sequence avoids distortion, thereby obviating the need for post machining operations. Consequently, the plates and bars can be provided with machined positioning or fastening fittings before the lattice is assembled. Illustratively, studs on the cruciform bars are used to join these bars to the elementary plates that form the individual components of a reactor coolant flow distribution plate.

Abstract: A load bearing two-way pallet fabricated as a permanent piece of hardware from tubular members integrally joined with transverse load bars embraced and enclosed by support rails. A common tube cross section is employed throughout with intermediate notching that reinforces complimentary engagement of one notched member with the other, and with end notching that reinforces the terminal ends of the tube members that are engaged with an embracing tube member. A feature is the method of manufacture wherein a rectangular and planar ladder-form is initially fabricated and the members thereof interjoined, followed by bending reformation of the rail members thereof so as to establish upwardly open transversely disposed channels for the reception of lifting forks, and openings beneath raised load bearing bars so as to receive the longitudinal insertion of lifting forks.