Abstract: The system includes vertical posts with apertured disks secured thereto at intervals, coupling heads, wedge-like keys, scaffold pipes, coupling head extensions, and tank-link heads. Each coupling head has a horizontal slot receiving an apertured disk when the head is pushed into mounted position thereon, and has top and bottom key-receiving openings above and below such slot. A wedge-like key extends down through the top key-receiving opening, through a disk aperture, then through the bottom key-receiving opening, fastening the coupling head to the disk. Coupling heads for horizontal scaffold pipes have extensions insertable into the pipes. Diagonal scaffold pipes have tang-link heads, whose tank has an aperture for a pivot provided on an associated coupling head. Conventionally, the disks, coupling heads and pipes are all made of steel, the disks of 9 mm thickness and 122 mm diameter. The disclosed lighter-weight version employs disks and scaffold pipes made not of steel, but of light metal such as aluminum.

Abstract: A scaffolding comprises uprights (6), cross members (8) with connection members (12) by which the cross members may be connected to the upright members, and diagonal braces (10) with mounting formations (42) adapted to be interfitted with receiving formations (32, 34) of the connection members (12). The mounting formation (42) is generally cylindrical, and its longitudinal axis intersects the longitudinal axis of the brace substantially at right angles, generally centrally of the mounting formation. The mounting formation is carried by a cranked connection portion (44). The receiving formations (32, 34) are provided by transverse bores (36), with lateral recesses in which the connection portions (44) are located when the mounting formations (42) are positioned in the bores (36). This allows forces to be transmitted between the connection member (12) and the diagonal brace substantially on the longitudinal axis of the brace, over a range of angular articulation of the brace relative to the cross member.

Abstract: A lightweight extruded aluminum tube and longitudinal fin structure and assembly enabling the use of two or three pluralities of identical parts only for ready hand-carrying and erection.

Abstract: A scaffolding support assembly particularly useful as a base for modularized post-and-runner type scaffolding used on the interior of boilers or similar large interior spaces having sloping bottom walls when employed for inspection, repair, maintenance, etc. Such scaffolding support assembly preferably comprising a scaffolding post swivel base having pivotably attached thereto longitudinally adjustable stabilizing diagonals having a connector assembly at the free end of said diagonal for securing to a connector, preferably lower, on an adjacent scaffolding post. The resulting scaffolding system has unique versatility and ease in rapidity of assembly because the swivel bases rest on the sloping sides without attachment thereto, being stabilized in position by the adjustable diagonals.

Abstract: Apparatus and method for constructing and disassembling a triangular prism-form truss structure in spaced are disclosed. The apparatus includes a triangular prism-form construction fixture and three feed units disposed about the fixture for feeding the triangular frame elements that form the basic unit of the structure, or for removing the elements from the structure. The construction method, essentially automatic, comprises feeding frame elements to the fixture from the feed units in sequence. Fixture forward and backward movement along the fixture longitudinal axis, before and after element feeding, effects fastening of the frame elements to one another. Shifting of completed truss structure sections relative to the fixture is accomplished by periodic axial movement of the fixture. The disassembly method essentially comprises the reverse sequence of the steps of the construction method.

Abstract: The truss-like beam is formed by the regular repetition along the axis of the beam, of polyhedral elementary cells, each one having two parallel and identical end faces, shaped as regular polygons with n sides which constitute the faces shared with the adjacent cells, and 2n triangular lateral faces formed by joining each apex of an end face to the two closest apices of the opposite end face; the edges of the elementary cell are materialized by elements which are permanently subjected to a pulling force, whereas rigid bars in buckled state join each apex of the elementary cell to its center.

Abstract: Dismountable multi-purpose framework (for example for use in forming access towers or platforms) is provided using a set of elongate members, preferably metal angle; including pillar members 10 and linking members e.g. horizontal members 11 interconnected by engaging a tenon formation 12 at one end of a first pillar member with a socket formation 16 of a second pillar member so that they are aligned in end to end relationship. The linking members have apertured lugs 21 which engage the tenon formation between the pillar members and the assembly is secured by a U bolt 17 which engages the tenon formation and is tightened by a wedge 19.

Abstract: A scaffold assembly for supporting members of a musical choir in a standing arrangement simulating the appearance of a traditional Christmas tree is disclosed. The scaffold assembly is arranged in tiers of horizontal standing boards rising one above and one behind another in stairway fashion from a base tier of standing boards to an uppermost tier of standing boards. The horizontal standing boards of each tier are arranged to form a segmented arc in a plane which is transverse to the vertical axis of the scaffold assembly. The tiers are stabilized by a plurality of horizontal support beams and upright support posts and a central stanchion. A first set of horizontal support beams project radially outwardly from a central plate, which is attached to the central stanchion, to the underside of the standing boards, and are attached to the respective support posts at the perimeter of selected ones of the tier.

Abstract: The disclosure relates to scaffolding and includes the use of apertured locking discs adapted to cooperate with vertical supports, and horizontal or diagonal brace members. The ends of the brace members are provided with pivotable locking wedges which can be driven down through said ends and through the apertures in the locking discs. The apertures are all identically shaped and depending upon the intended purpose of the scaffold, certain surfaces of the ends of the brace members and the cooperating apertures are contacted by the locking wedges which thereby determines in which direction the horizontal members will extend.

Abstract: A method of and means for erecting precast slabs in building construction wherein the slabs are supported on prefabricated temporary generally rectangular walkthrough self-stable shoring frame assembly. A generally U-shaped base member is assembled with a staff structure which may be in the form of an inverted U-shaped arrangement in which upstanding arms on the base member are telescopically adjustably connected with depending arm extensions of the staff member. Diagonal, adjustable struts may connect cooperating units of the shoring frame assembly. Combination slab lifting and shoring frame locating pin-like fingers are provided.

Abstract: A shoring system having base frames with legs preferably of extruded aluminum in oval cross-section (for optimal support with minimal use of materials) and optionally having three T-slots formed integrally therewith and extending the length thereof (for versatility in bracing), and preferably in combination with telescoping extension frames formed of extruded aluminum and adjustably inter-connected with respective uppermost base frames by U-pins (or channeled load collars) fastened through pairs of locating holes (or dual slots) spaced along each extension frame leg. The locating holes (or slots) are formed in thickened walls on either side of a central hollow core in each extension frame leg (to accommodate retraction of a jack screw mounted on the leg).

Abstract: A scaffold joint for connectng the ends of horizontal scaffold members to vertical scaffold members. Spaced pairs of ring support members are fastened to the vertical scaffold members by welding or other suitable means. End connector assemblies are fastened to the ends of the horizontal scaffold members. Each of said end connector assemblies includes an end connector member and a locking member slidably mounted thereon. Each end connector member has a pair of ring engaging portions adapted for engagement with the spaced ring support members on said vertical scaffold members. The locking members are adapted when moved to their locked position to make tight wedging contact with a ring support member, thereby causing the ring engagement portions on the end connector members to be forced into tight engagement with the ring support members to thereby lock the horizontal scaffold members to the vertical scaffold members.

Abstract: A walk-through scaffolding having two first vertical frame components adapted to engage a hurdle top scaffolding frame, the first frame components each having a vertical tubular member to engage a corresponding spigot on the hurdle frame.

Abstract: A telescopic scaffold comprising opposed pairs of elongated support legs each received in adjustable sleeve members securable at a predetermined location therealong. Arresting means is provided to interlock each sleeve member with its associated leg at a predetermined location therealong. An adjustable bracing end support structure is adjustably securable between each adjustable sleeve member of each pair of legs to secure each leg of the pairs of legs at a desired inclined angle to each other and at a desired spacing therebetween. A tubular support member is secured to each of the adjustable sleeve members and extends transverse to the longitudinal axis of the sleeve member and the end bracing. An intermediate horizontal support member is telescopically securable between opposed tubular members of the opposed pairs of support legs to constitute adjustable elongated side supports.

Abstract: An improved annular support structure for the dispersion section including the hot water basin of a cooling tower. The annular outer structure comprises a plurality of sector-shaped independent, self-supporting and self-stabilized towers each comprising a pair of radial sides formed by a stack of superposed precast reinforced concrete portal frames and precast reinforced concrete right triangular bracing members extending between and supported on the uprights of spaced pairs of portal frames. Cantilevers extending from the outer uprights of the portal frames support precast concrete louvers. The hot water basin has part annular sections supported on beams aligned with the radial sides and spaced from one another by expansion joints.

Abstract: Roof coverings may comprise one, two, three or more roof trusses including top and bottom longitudinal chords, diagonal rods and vertical posts by means of which the top chord is connected with the bottom chord. The roof trusses are interconnected by means of transverse bracing at distances sufficient to ensure lateral rigidity. Top and bottom abutment girder members are mounted at the ends of the top and bottom chords, respectively. Top and bottom purlins are arranged between the top and bottom abutment girder members at the same levels therewith in panel points of roof truss. The abutment girder members and purlins are secured to said top and bottom chords. Pre-stressed sheet coverings, supported by the abutment girder members and purlins, are secured to said members and purlins and to the longitudinal chords, with the abutment girder members keeping the sheet coverings tensioned and the longitudinal chords compressed.

Abstract: A portable, preadjustable, knockdown and storable rack construction and system for holds of cargo ships embodying a geometric relation and pin arrangement which can be progressively assembled or dismantled with great time saving by hand or crane, or both, without tools, while loading or unloading unitized cargo crates. All parts are engaged and maintain their assembled engagement under gravity, cargo weight and ship vibration.

Abstract: A multi-storied electrostatic precipitator having a plurality of electrostatic precipitators centrally anchored in a vertical alignment stacked upon each other with sliding joints disposed therebetween, the sliding joints permitting horizontal movement between adjacent electrostatic precipitators.

Abstract: A scaffolding structure comprising upright members connected together by cross members and including additional members which serve as braces, including at least one brace secured to a member, the brace being provided with at least one transverse pin and the member being provided with an aperture for the reception of the pin, the brace having means captively associated therewith for releasably restraining the brace from movement in a direction longitudinally of the pin.

Abstract: The frame structure of the invention has a plurality of tubular uprights of circular cross-section each including a number of axially spaced ring flanges which are concentric with the respective upright and which are each formed with circumferentially distributed cut-outs of differing shapes. A plurality of bracing elements connect the respective uprights and each of them has two end portions. Each end portion is formed with an axial slot having a width at least equal to the thickness of the respective ring flanges and subdividing the respective end portion into two sections provided with registering openings extending normal to the elongation of the respective bracing element. A releasable wedge member extends through these openings across the slot and through one of the cut-outs of a ring flange which is in part located in the slot.

Abstract: A scaffolding element comprises a triangular frame having a vertical member, a horizontal member and a diagonal member and further having a yoke at the free ends of the horizontal and diagonal members. This yoke has an upper arm with an aperture therein to receive the upper end of the vertical member of an adjacent frame and a lower arm. This lower arm has a slot into which the vertical member is received below the horizontal member.

Abstract: An offshore tower structure has a polygonal hollow base which can be selectively flooded or made buoyant, at least five columns sloping upwards and inwardly from apices of the base to a top frame above the surface of the water and bracing members arranged in zig-zag patterns between each pair of adjacent columns.

Abstract: A scaffolding connection between the ends of a plurality of horizontal members and an upright member, in which the end of each horizontal member is provided with oppositely directed tongues projecting laterally therefrom, and the upright member has thereon opposed retaining elements adapted to receive said tongues, one retaining element being fixed to the upright member and the other retaining element being movable along the upright member with respect to said fixed element, the arrangement being such that after separation of the retaining elements, one projecting tongue on each horizontal member can be engaged in the fixed retaining element and the oppositely directed projecting tongues engaged in and by the movable retaining element, thereby locating the ends of the horizontal members in relation to the upright member, the latter also having thereon means for engaging the movable retaining element to clamp it against movement away from the fixed retaining element after the said projecting tongues have been

Abstract: A framework for housing automobiles or the like including, as its main components, joint base plates, vertical and horizontal pipes, and diagonal beams, and capable of being assembled side by side and one on the other.