Abstract: The composite structure made of wood and reinforced concrete can be used for bridges, roofs etc. In a bridge, a plate of reinforced concrete carries the roadway and rests on a truss comprising lower and upper chords, transversal girders and struts made of wood and posts made of reinforced concrete. The lower struts are reinforced with steel ties, follow a bent curve and are anchored in lateral end sections. Forces in the wooden parts all extend along the wood's fibre, which increases the maximum load capacity. The concrete posts allow a simple assembly of the wooden elements. The weight of the construction is low, its load bearing capacity high.

Abstract: An innovative steel-framing system and method of construction utilizing structural beams having preformed rotating hole patterns therein. The structural beams can be coupled together at various angles by virtue of the rotating hole pattern. The entire framing system is constructed using the same gauge of steel-framing members and without unique connectors. Furthermore, the preformed holes in the structural members allows the use of standard sharp-pointed screws, rather than self-tapping screws which are more time-consuming and costly. The structural members are formed as C-channels and may be coupled together to form stronger members. In this manner, a relatively small inventory of steel members is used, greatly reducing mistakes in the framing process.

Abstract: A shear resisting member of a frame structure comprising four triangular cross-section beams, each beam or stud formed from a single piece of cold formed sheet steel which is bent lengthwise along four parallel lines to form a triangular cross-section with two wings or flanges, side-by-side, extending from its apex. Within the frame structure of the shear resisting member, two frame beams have first beam lengths corresponding to the longer dimension of the opening in the wall to be reinforced, which are disposed parallel to each other. The other two beams have second beam lengths substantially shorter than the first beam lengths, the second beam length corresponding to the spacing between the frame studs or truss members of the structure being reinforced. Gussets are attached along the lengths of the wings or flanges of the second beams and the ends of the first beams to fasten the frame structure together.

Abstract: A special reinforcement basket of steel rebar for reinforcing concrete barriers has toe regions of increased strength. Above the toe regions, there is a shoulder region where windows, or gaps, in the rebar provide for uninterrupted passage of holes in the concrete for anchor bolts, in order that the cast barrier may be anchored to a foundation. The invention is especially useful for precast concrete road barriers, which are manufacturered in a plant and then brought to a site and anchored in place.

Abstract: A work platform system for use while working off the ground in new construction, particularly in installed of roof structures and upper floors where fall protection systems are required and for which no effective work platform systems are available. System consists of frame (10, 12, 14, 16, 18) fabricated from standard galvanized light gauge steel components, with brackets (20, 22), clips (26,28,32) and straps (30) fabricated from standard galvanized stock. Components are welded and/or bolted together, Brackets are attached to partially-completed structure to establish work platform for subsequent construction operation. System utilizes conventional scaffold planks and railings. Installation and use are in accordance with existing regulations for working on work platforms. Use of separate fall protection devices is alleviated by use of this system.

Abstract: A truss fabricated of cold rolled sheet metal structural members having chord members, web members, and connectors for joints thereof, of such construction as to enable fabrication of the truss with the chord members lying flat on a fabrication table and further of such construction as to allow a plurality of trusses to be stacked flatwise one on another for storage and delivery.

Abstract: In antiseismic steel structural works of the frame type or of the truss type, which are constituted by columns and by girders fastened to the columns, the girders of different shapes show, at least in the vicinity of one of their extremities, a dissipative zone constituted by a reduction of the actual cross section. The reduction of the actual cross section consists either in differently shaped indentations in the edges of the flanges of the girder or in round or polygonal holes which are regularly distributed over the flanges and have a small diameter.

Abstract: A connecting element for the connection of sectional steel columns with roof trusses consisting of wood and exhibiting mutually converging lateral faces, for the erection of hall constructions and the like. The roof truss (2) has an end face (17) in flush contact with the column (1) and a steel band (16) is attached to the topside of the roof truss (2) for connection with the column (1) which latter is beveled in correspondence with the slope of the roof. This steel band is connectible with the column (1) by welding or by a flange plate (15) fastened to the column (1). A haunch-shaped supporting element (18) is provided on the inside between the column (1) and the roof truss (2).

Abstract: A framing system for providing structural support to walls and the like which includes a first metal channel with two parallel flanges having two or more longitudinal rows of longitudinally elongated slots. Each elongated slot in one flange lies opposite a corresponding slot in the other flange but each row of slots in each flange is offset from an adjacent row of slots in the same flange. The system further includes a second metal channel section useful as a stud and having two parallel flanges adapted to fit between the parallel flanges of the first section. Both ends of both flanges of the stud section have a plurality of holes in a predetermined pattern such that, when the second section is fitted at right angles into the first section, a sufficient number of holes in each flange of the second section registers with slots in the adjacent flange of the first section so as to enable the first section to be secured to the second section by fasteners passing through the holes and slots in register.

Abstract: A supporting frame is provided for a light-transmitting ceiling panel, which panel extends to a vertical wall or other surface. The supporting frame is particularly designed for lighted ceilings in which light transmitting panels extend from wall to wall in a room and have sources of light thereabove. The supporting frame includes a side frame member having a horizontal flange which supports an edge of the light-transmitting panel and a vertical flange extending along a surface of the wall or vertical surface. The frame member is affixed to the vertical wall by suitable means extending through the vertical flange and the vertical flange also has indentations and/or openings to aid in affixing joint compound or the like thereto. In a preferred form, the supporting frame member has a shoulder formed at the junction of the vertical and horizontal flanges to which the joint compound or the like is spread when it is applied to the vertical flange and over the adjacent vertical surface of the wall.

Abstract: The crown block has two parallel clusters of sheaves. In one use the crown block is positioned such that the center of the derrick passes through the axle of one of the clusters and a power cable is threaded through the first cluster of the crown block and the cluster of the travelling block. When one wants to double the mechanical advantage, the crown block unit is shifted so that the center line of the derrick passes midway between the axle of the first cluster and the second cluster of the crown block. For this second use a modified traveling block is used which also has two parallel clusters of sheaves which corresponds to the two parallel cluster of sheaves of the crown block. The power cable is then threaded between the first clusters of the crown block and the traveling block and then through the second sheave cluster of the crown block and the second sheave cluster of the traveling block. The load is connected to a cross member between the two axles of the clusters of the traveling block.

Abstract: The subject matter of the application is based on a process for the manufacture of screen components of various lengths for system screening decks, the screen components having substantially the form of a plate or at least a frame with longitudinal and transverse members. The screen components consist of a weldable plastic and are subdivided into short components with a square and/or rectangular basic shape and into long components two or three times the length of this basic shape. The screen components have in each case, on supporting members arranged on both longitudinal sides, fastening elements, which project from the undersides, or edge fastening recesses spaced in a certain pitch independently of their lengths. In spite of their various lengths, such screen components are to be manufactured in injection-moulded quality, for which only one injection mould in a single format corresponding to the basic shape is necessary.

Abstract: A Custom Construction System consisting of a novel structural member in combination with as required, spreader members and equalizer members which are assembled together by various nuts, bolts and other hardware to produce various pieces of furniture and other home improvement projects. The basic structural member consists of a rectangular shaped member having rounded edges and a plurality of bores passing through both its wider and narrower surfaces. The basic structural member and the spreader members can be constructed utilizing a template. The template consists of piece of material having two flanges at approximately a 90.degree. angle with respect to each other. One of the flanges has a rounded end. Both flanges have bores located on their surfaces which are used for marking the location of the bores on workpieces to be converted into structural members and spreader members.

Abstract: A building framing system consisting of a plurality of framing units each having at least two vertical load bearing column/studs with one or more joists extending horizontally there between and bolted in place. The joists are vertically spaced apart a distance sufficient for one floor of the building which may have as many as twelve floors. The frame units are erected in parallel, spaced apart a considerable distance and are connected together by means of spacer members and diagonal braces which are provided at each end and at each floor.

Abstract: A freestanding structural wall panel comprising a plurality of elongated spaced apart wire assemblies comprising first and second elongated wire members each formed into a continuous generally triangular shape, a first longitudinal wire member coupled to the lower apices of the first and second triangular wire members such that the apices of one triangular wire member are staggered with respect to the apices of the other triangular member and the planes of the first and second continuous triangular members form an angle with each other and second and third longitudinal wire members coupled to the upper apices of the first and second triangular wire members respectively, a layer of concrete partially embedding the wire members, and a layer of polyurethane foam formed for insulation purposes on the concrete layer and partially embedding the wire members whereby ducts, pipes and wiring may be placed under the non-embedded portion of the wire members and wall board may be attached to the wire members.

Abstract: A lintel for supporting arches over doors, windows and other openings in a wall. The lintel is made of relatively thin sheet metal and has at least one load-carrying shank (5;12,13;19,20), so that the lintel in spite of its thin construction can carry great loads during the walling of the arch. The shank or each shank is provided with a longitudinally extending material weakening (6), e.g. a series of slots, perforations, a groove or similar. Said material weakening forms a fracture indication along which the shank can be folded or broken off, when the motar has set and brickwork has become self-supporting.

Abstract: An elongated sheet of stainless steel material includes alternately spaced apart laterally extending slots and ridges formed by removing a length of material and then applying downward pressure within the slots to form downwardly extending rounded slot edges. Upward pressure is applied along a line between the slots to form rounded ridges having oppositely extending downwardly sloping surfaces which merge into flat surfaces extending to the adjacent slot edges. The opposite sides of the floor members include downwardly extending side walls which slope inwardly towards each other such that side walls of adjacent floor members form elongated openings which increase in width downwardly. An A-shaped strengthening member may be provided under the floor member along its center line and supported by vertically disposed end channels the upper legs of which have downwardly extending return bend portions providing rounded edges therealong.

Abstract: A connector for use in connecting two perforate members at a predetermined angle. The connector comprises a base plate. A first catch member on the base plate is able to engage in a perforation in one of the perforate members. A second catch member on the base plate is able to engage with a perforation in the second perforated member when the two members are placed together at the predetermined angle. A third catch member on the base plate is able to engage a perforation in each perforate member that is spaced from a perforation engaged by the first and second catch members. An offset is formed in the plate between either the first or the second catch member and the third catch member. The offset is about equal to the thickness of one perforate member.

Abstract: The specification discloses a camouflage disrupter frame for supporting camouflage netting in order to camouflage an object. The disrupter frame includes a plurality of elongated links pivotally interconnected at the ends thereof to form a parallelogram configuration when the frame is expanded from a normally closed position to an open position. An elongated flexible bow member is connected across the frame and has a linear configuration when the frame is closed. The flexible bow member is flexed and bent outwardly from the parallelogram configuration when the frame is expanded to the open position. When the bow member is flexed, the bow member tends to return the frame to the closed position. A strap is adapted to be connected across a corner of the frame to prevent the return of the frame to the closed position. A camouflage netting may be attached to and supported by the disrupter frame to provide anirregular three dimensional camouflage shape.

Abstract: A constructional element of constant L-shaped cross-section formed by two metal flanges joined together at right angles has in each flange at least one row of regularly-spaced apertures extending longitudinally thereof. Each row comprises alternate circular apertures and non-circular apertures, the latter being elongated both parallel to and transversely to the length of the element. The rows of apertures in the flanges closest to the junction are offset with respect to each other so that the circular holes in one row register transversely with the non-circular holes in the other row. By the provision of non-circular apertures elongated in two directions, the versatility of the element when used in the fabrication of structural units and frameworks is enhanced.

Abstract: A constructional element of constant L-shaped cross-section formed by two metal flanges joined together at right angles has in each flange at least one row of regularly-spaced apertures extending longitudinally thereof. Each row comprises alternate circular apertures and non-circular apertures, the latter being elongated both parallel to and transversely to the length of the element. The rows of apertures in the flanges closest to the junction are offset with respect to each other so that the circular holes in one row register transversely with the non-circular holes in the other row. By the provision of non-circular apertures elongated in two directions, the versatility of the element when used in the fabrication of structural units and frameworks is enhanced.

Abstract: A self-adjustable stair construction wherein the treads of the stair are supported by spacers between parallel upper and lower stringers in a truss assemblage. The rise and run and nosing are simultaneously adjusted for each tread with the adjustments being cumulative for each stair flight total run while maintaining the treads level. Each tread is located in a right angle relationship with each spacer. The treads, spacers and stringers are pivotally connected together with an elongated slot formed in each spacer to permit the adjusting movement. The slots are inclined and may be either curved or straight with the slope of either being in substantial alignment with the direction of the adjusting movement. The minimum number of repeated parts to produce the whole stair may be two.