Abstract: A joist girder construction includes connecting ties which connect adjacent ends of joist girders at a point where they are supported. The ties include a non-welded zone to afford plastic elongation of the tie. The ties create an axial connection force between the top chords to reduce the force a load causes within the joist girder to thus reduce the size of the upper and lower joist chords to minimize overall weight and expense.

Abstract: An assembly system of panels comprises panels (1) on two opposed edges (2) of which notches (3) are provided. A linkage part (7) connects four adjacent panels (1). This linkage part comprises a flat wall (8) intended to be entered into the notches (3) of the panels and guiding members (9) abutting against the faces of the panels (1). This system permits the mounting of structures for storing purposes forming boxes which are closed on at least four sides.

Abstract: A connection for structural members is provided including a plurality of hub components each having projecting ears for receiving the end of a structural member, with the components being rotated to define angles between the respective ears of adjacent hub components, and with the hub components being precompressed together by bolt means.

Abstract: A device for connecting plates and/or rods of the light construction type made of wood, plastic or the like, with junction pieces having a plurality of threaded holes whose axes intersect at the center of each junction piece. Tap bolts are disposed in the area of the plate corners and/or the rod extremities so they can rotate and slide axially in the planes of the plates and/or along the axes of the rods, which can be screwed into the threaded holes of the junction pieces. The tap bolts are mounted in dowel-like shells which have at their outer ends an abutment for each tap bolt. The shells are pressed and/or glued into boreholes in the area of the plate corners and/or extremities of the rods. A drive-collar is mounted on the shank portion of the tap bolts protruding from the shells.

Abstract: The coupler portion of a connector assembly for interconnecting vertical columns and horizontal beams includes a rectangularly shaped hollow block member having a vertical row of slots formed along the height of each of its sidewalls. The block member is connectable to the top or bottom of a vertical column or between two abutting vertical columns by a joiner insert composed of a flat flange section and a transverse stud section extending normally outwardly from one side of the flange to engage within a central hole provided in the end wall of the hollow block member. The joiner insert also includes a plug section extending normally outwardly from the flange section in a direction opposite the stud section to engage within a socket formed in the end portion of each column. The connector assembly also includes a T-shaped bracket engageable within a vertical slot formed in each end portion of the horizontal beams.

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 framework comprising hollow rods connected at their ends by connecting members. The hollow rods and connecting members are secured by a novel bayonet connection.

Abstract: In a double-sigmoid connector, as used to interconnect structural members in a trusswork and comprises a pair of arcuate elbows joined to each other at their outer peripheral midsections, a pipe extends through an opening in the outer peripheral midsection of each elbow and is joined to each elbow so as to join the elbow to each other.

Abstract: A construction kit comprises male and female elements, preferably of molded plastic material, for assembly into various model structures. The male elements have cubic bodies with studs protruding from two or more faces and the female elements are elongated U-section pieces having corresponding square end walls with keyhole-shaped openings for receiving and gripping shanks of the studs whose heads are guided and held between the lateral walls of the female elements. The male elements can be formed of interengaging pieces, and may possibly be pivotally joined. The kit may include various accessories such as panels, struts, pulleys, wheels with removable toothed rings or tines, a motor and so forth to complete the desired structure.

Abstract: A connector for intersecting structural members which connector has a hollow box-shaped central portion and fins projecting from the outer corners thereof to form with the sides of such central portion opposite aligned channels which receive the end portions of mitred, abutting, intersecting structural members.

Abstract: A screen ceiling is disclosed comprising a plurality of elongated panels arranged generally in vertical planes with adjacent ends of panels secured to supporting gusset joints in turn suspended from an overhead fixed support structure. Each gusset joint has an outwardly extending support for each panel connected thereto. The outwardly projecting supports in turn have projections extending through one or more openings in the panels which openings are adjacent the ends thereof. Joining and locking members cooperate with the projections extending through the panel openings to lock the panel ends to the gusset joints and prevent loosening.

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 steel box-column for steel structures comprises a pair of steel channel members each having beam-column connecting diaphragms set inside thereof at respective positions whereat flanges of beams are welded to the exterior of the channel members. The flanges and the web of each steel channel member are welded to three sides of each of the connection diaphragms. A pair of the steel channel members are welded to each other at ends of their flanges facing each other.

Abstract: A screen ceiling is disclosed comprising a plurality of elongated panels arranged generally in vertical planes with adjacent ends of panels secured to supporting gusset joints in turn suspended from an overhead fixed support structure. Each gusset joint has an outwardly extending support for each panel connected thereto. The outwardly projecting supports in turn have projections extending through one or more openings in the panels which openings are adjacent the ends thereof. Joining and locking members cooperate with the projections extending through the panel openings to lock the panel ends to the gusset joints and prevent loosening.

Abstract: A furniture construction kit comprising a few standard parts makes it possible to construct a variety of articles of furniture. The main parts are elongated frame elements each consisting of two coaxial tubes interconnected by diametrically opposed radial ribs, the inner tube having an internal thread at one end, and a joint associable with the end threads of the frame elements. The joint comprises two like rings fitting between the ends of two associated frame elements and a connecting member having a threaded shank for connection with the internal end thread for coaxial association the associated frame element and a sectorshaped hook head extending eccentrically from the shank in a plane perpendicular to the shank axis into one of the rings.