Abstract: A traveling culvert/tunnel forming structure including upright waler assemblies positioned in transversely spaced relation on each side of said forming structure, the waler assemblies being adapted to receive forms on outside surfaces thereof. Horizontally adjusted header assemblies are supported at opposite ends by the spaced upright waler assemblies. Collapsible braces are disposed between the upright waler assemblies enabling the upright waler assemblies to move towards and away from one another. Multi purpose mounting brackets are mounted in rows on the upright waler assemblies which brackets are positioned inwardly from the waler assemblies. Rows of casters are swivelly mounted on the brackets inside of the rows of upright waler assemblies beneath the header assemblies. A pair of rows of leveling jacks are provided for elevating the forming structure and its casters out-of-contact with a ground supporting surface. The leveling jacks each have an upstanding jack shaft.

Abstract: A curved concrete forming structure to provide a 1000 psf system for forming curved walls having a radium in excess of 5'. The structure includes a series of arcuately curved metallic panels secured in stacked side-by-side assembly. The improvement particularly concerns a panel which is comprised of a flexible metallic skin plate. Spaced vertically extending ribs are positioned along the length of the panel on one side thereof. The ribs and the skin plate have essentially the same vertical dimensions. A pair of vertically spaced arcuately curved angles are provided which angles have identical diameters that correspond to the diameter of the concrete wall to be poured using the concrete forming structure. The curved angles are substantially stiffer and inflexible compared to the flexible skin plate.

Abstract: A modular concrete form structure including a series of at least three vertically extending rows of concrete form panels to be joined together in side-by-side relation as a gang for use in the formation of straight or curved concrete walls. The panels have confronting slotted panel margins about their perimeters. Fasteners secure the confronting panel margins in side-by-side relation. A series of spaced vertically aligned a horizontally positioned mini-walers are provided for mounted disposition in lapped engagement against the confronting slotted panel margins. The mini-walers each have a width exceeding the width of the form panel and being of sufficient additional width to extend over joints formed between the confronting slotted panel margins at opposite sides of each panel to provide a backing. Fasteners are provided for securing the spaced vertically aligned horizontally positioned mini-walers to the panels.

Abstract: A concrete forming structure including a collapsible form having at least one form panel section and a rigid corner adjacent thereto and with the panel section having a forming face. A two-way hinge filler structure between the section and the rigid corner. The hinge filler structure including a series of hinge plates with a pair of the hinge plates being attached to the form. The hinge plates including a pair of spaced hinges joining the hinge plates in hinged assembly together and with the hinges lying in a plane common to the forming face of the section. Means is provided for holding the panel section in a predetermined position to facilitate the pouring of the concrete and with the means being releasable. The panel section being pivotal on the hinges to effect disengagement of the panel section from the poured concrete.

Abstract: A concrete forming structure including a collapsible form having at least one form panel section. The section having a marginal flange structure mounted thereon at one side and vertically spaced slots on the marginal flange structure for receiving wedge bolts at selected intervals. A one-way escape hinge structure for the form including a pair of first and second hinge plates, the hinge plates including a hinge securing said plates at one of their ends. The first of said hinge plates having vertically spaced wedge bolt slots spaced at intervals generally coinciding to the spacing of the slots on the marginal flange of the panel section. Locking pairs of wedge bolts each having an enlarged end are provided. One wedge bolt of each pair extends through the cooperating slots in the first hinge plate and the marginal flange structure of the panel section with its enlarged end resting against the hinge plate.

Abstract: An adjustable long bolt for connecting modular concrete form panels. The bolt is generally flat along its length and has a pair of elongated slots disposed in adjacency to opposite ends of the bolt. At least one circular hole is disposed between the slots having its mid-point disposed along a longitudinal line in longitudinal alignment with longitudinal axes of said elongated slots. The longitudinal spacing between the elongated slots with respect to the at least one circular hole being varied to enable the bolt to be installed in a larger number of adjustable positions by turning the bolt on its end through an arc of rotation of 180.degree..

Abstract: A concrete forming structure for culverts, tunnels, elevator shafts and the like, having side panels and chamfered corners. Novel two-way hinge assemblies are provided adjacent the chamfered corners and comprise two hinges and an angle iron disposed therebetween. The hinges are attached to confronting marginal faces of side panel sections and corner panel sections. Means are provided for holding the panel sections in a predetermined position to facilitate the pouring of the concrete and with the means being releasable. The panel sections and hinges are cooperable to allow the panel section to collapse and move after release of the means for allowing the panel section to be readily disengaged from the thus formed poured concrete. The hinges are lockable in a forming configuration.

Abstract: A transition bolt for clamping together the side rails of a pair of edge-to-edge concrete wall form panels or the like comprises an enlarged head portion, a reduced shoulder portion, and a further reduced shank portion and is characterized by the fact that the shoulder and shank portions are flat-sided and have their sides coplanar and the shank portion is formed with interrupted screw threads along its edges for reception thereover of a threaded nut.

Abstract: An attachment for use in anchoring a safety belt on a vertically extending supporting member such as a frame member of a concrete wall form side includes a plate-like bracket member and a connecting member extending outwardly from one face of the bracket member. The bracket member is disposed on one side of the supporting member and projects outwardly beyond a vertical free edge thereof in use, while the connecting member is inserted through an opening in the supporting member, which may be an opening provided for other purposes in a frame member of a form side, for securing the attachment to the supporting member. An opening is provided in the projecting portion of the bracket member, and it serves to receive an element of a safety belt for connecting the belt to the bracket member.

Abstract: A safety key designed specifically for use in connection with concrete wall form panels of the "Steel-Ply" or metal-encased type. The key affords an anchor eyelet or hole for receiving the hook which invariably is provided on one end of a safety belt that is worn by a workman who is obliged to work on the concrete wall form at an extremely high or unsafe level or elevation. The key in one form of the invention embodies a shank and an enlarged head, the shank being received in the opposed notches which are formed in the outermost abutting ribs of the mating and abutting frame members or bars of the marginal reinforcing frames of two adjacent wall form panels, and being removably locked in place by a pair of conventional coacting wedge bolts. The enlarged head on the shank defines the aforementioned anchor eyelet or hole.

Abstract: Adjustable shoring apparatus includes upper and lower pairs of horizontally extending spaced apart parallel chords, a plurality of struts extending obliquely from the upper chord pair to the lower chord pair and between the chords in each pair in a continuous longitudinal series of strut pairs of like substantially V-shaped configuration having their apices at the lower chord pair, means connecting the upper and lower ends of the struts respectively to the chords of the upper and lower pairs in a truss-like structure adapted for supporting a load on the chords of the upper pair, a plurality of vertically extending elongated legs each having a vertical series of support pin holes which extend transversely therethrough, the legs having upper portions inserted between the chords in the lower pair and lower portions extending below the structure to provide support therefor, the legs being vertically reciprocally movable relative to the structure for adjusting the combined height thereof, the strut pairs in said s

Abstract: Fastening means are employed in a load-bearing structure, such structure including structural members adjacent to each other at two spaced apart points, the fastening means being of the threaded bolt and nut type serving to connect the structural members together and to transfer load forces between the members at both points, and including a bolt and a nut each having a head and an integral shank including a cylindrical bearing portion, such shanks being inserted through bolt holes in the structural members and the shank bearing portions being in load-bearing engagement with the members at respective points.

Abstract: A leg brace assembly is employed in combination with adjustable shoring apparatus, such apparatus including a truss-like structure, a vertically extending leg adapted to support the structure and being vertically reciprocally movable relative to the structure for adjusting the combined height thereof, and means for adjustably connecting the leg to the structure at a selected vertical position relative thereto, the leg brace assembly comprising an elongated leg brace member, means for connecting the leg brace member to the structure for swinging movement of the leg brace member about a transverse axis, and means for detachably connecting the leg brace member to the leg at a point spaced below the structure to thereby brace the leg against the structure, whereby the leg brace member may be disconnected from the leg and swung upwardly about said axis to a position wherein the leg brace member is disposed completely above the bottom surface of the structure.

Abstract: A multi-purpose, extruded metal, joist-like, structural member which is designed for use in connection with concrete formwork, the member being generally of I-beam configuration and having associated therewith novel facilities whereby its effective length may beextended in small increments or it may be spliced to adjacent similar members by utilizing either lumber or novel extruded metal extension members of special design.

Abstract: An inside articulated and collapsible form adapted for use in the formation of a rectangular concrete corewall and having at its corners novel three-way hinge assemblies including main hinge leaves which are movable between right angular positions wherein the four form sides with which they are associated assume extended positions wherein their panel facings conform to the outline of the inside face of the corewall to be formed by pouring wet concrete around the form, and acute angle positions wherein such form sides assume collapsed positions which are inwardly removed from such outline while the hinge leaves constitute rub rails which guide the collapsed form axially along and within the surrounding hardened concrete corewall during removal of the form the formed corewall.

Abstract: Method and means for supporting an elevated concrete wall panel form, wherein a bolt member is removably inserted through a first concrete wall panel to extent horizontally therethrough and project axially from opposite sides thereof, whereby a wall of a form for a second concrete wall panel in superposed relation to the first panel may be seated on one projecting end of the bolt member and the bolt member is rendered accessible from its opposite end, and the seated form wall is secured between the first wall panel and a retaining member projecting laterally from said one end of the bolt member, the retaining member being mounted on the bolt member for disposition permitting withdrawal of the bolt member through the first wall panel and from said opposite end of the bolt member after forming a second wall panel.

Abstract: A unitary concrete form installation of the flying deck type, preadjustable to selected dimensions and adapted to produce a horizontal building floor slab, comprises a deck formwork including a pair of deck supporting stringers, and scaffolding supporting the stringers and consequently the formwork, the scaffolding including spaced supporting posts disposed in quadrilateral relationship beneath the stringers, each post including elevator screw means for varying the effective length of the post, a shore head mounted on the upper end of each post and releasably secured to a stringer, pairs of cross braces of selected length extending between longitudinally and transversely spaced pairs of posts, and means for releasably securing the cross braces to the posts, thereby providing a form installation which may be transported as a single unit from one location to another for producing floor slabs in successive locations without dismantling the installation between locations and which may be dismantled following use.

Abstract: A multi-purpose, extruded metal, joist-like, structural member which is designed for use in connection with concrete formwork, the member being generally of I-beam configuration and having associated therewith novel facilities whereby it may be nailed, bolted, screw-attached, clamped or otherwise secured to various types of support members (either in the form of lumber or structural metal parts) to the end that it assumes a proper operative position within a concrete wall or slab form installation.

Abstract: A multi-purpose, extruded metal, joist-like structural member which is designed for use in connection with concrete formwork, the member being generally of I-beam configuration and having associated therewith novel facilities whereby it may be clamped to various types of support members either in the form of lengths of channel members or lengths of I-beams to the end that it assumes a proper operative position within a concrete wall or slab form installation.

Abstract: A composite concrete wall form unit or assembly consisting of three metal-clad panels connected together in edge-to-edge relationship, the medial panel embodying a plywood facing with a rectangular metal-reinforcing or backing frame, such medial panel constituting a prefabricated fill-in panel for making up an odd dimension which exists between two adjacent outer panels. Such outer panels are of a larger size and likewise are prefabricated in such a manner that they possess a common plywood facing which extends across the plywood facing of the smaller medial panel in face-to-face relationship and thus bridges the odd dimension. A special and novel transition bolt is used for connecting each side rail of the reinforcing frame of the medial panel to the adjacent side rail of the adjacent outer panel.