Abstract: A tie includes an elongated strap with an end plate pivotally connected at each end of the strap, permitting the end plate to be pivoted from a position generally orthogonal to the strap, to a position generally parallel to the strap. Once an end plate is pivoted to a position parallel to the strap, the end plate can be pushed through a polystyrene form panel to project therefrom. The end plate is then pivoted to the position orthogonal to the strap, and pulled into engagement with the outward face of the form panel. The second end plate on the tie is pivoted, pushed through a second form panel, pivoted to the orthogonal position, and thence the second form panel is pulled outwardly into contact with the second end plate. In this way, the tie will interconnect a pair of parallel form panels in spaced apart position, to receive poured concrete therebetween.

Abstract: The invention provides a bulkhead forming system and method for forming a bulkhead. The bulkhead forming system comprises a number of individual forming members which are coupled together end to end and opposing each other to provide a gap therebetween on which the concrete is poured. The individual forming members consists of straight side forming members, 90.degree. internal angles, 90.degree. external angles, and other angled matched pair forming members, each of the said forming member having a substantially deep continuously concave indentation extending horizontally through the forming member, resulting in a substantially sideways U-shaped cross-section. Each surface of the bulkhead forming member is provided at an angle at which the frame can be easily released from the bulkhead once cured. The resulting freestanding bulkhead provides a useful walkway or work surface. Pilings may be driven into soil and placed between the opposing frames to provide additional stability or to create a boat lift.

Abstract: A gang form for use with a concrete form system. The concrete form system has a plurality of said gang forms and a plurality of tie rods. An improved insert having four sides is positioned between two adjacent form panels having flanges with flange openings therein. Side openings in the third and fourth sides of the insert are aligned with the flange openings. Attachment devices are inserted in the side openings and flange openings to attach the insert to the two adjacent form panels and to provide the gang form. At least one lock member is rotatably attached to the second side of the improved insert. One of the plurality of tie rods extends through a tie rod opening in the first and second sides of the insert and is firmly secured to the insert by moving the lock member from an unlocked position to a locked position. Thus, the gang form is interconnected to the concrete form system.

Abstract: A penetratable stiffback useful as a building form is provided and is useful as an integrated member of a forming system in conjunction with a pair of forming panels. The stiffback includes a face panel and a pair of rearwardly projecting support walls, each support wall including a lug projecting outwardly therefrom intermediate the rear margin and the rear of the face panel. The face panel includes a front face for location coplanar with a pair of adjacent forming panels to present a forming system for receiving hardenable material thereagainst, the lugs serving to reinforce the panels on either side. The system includes a connecting member for penetrating the face panel and connection to an opposing forming wall to inhibit separation of the forming walls caused by the weight of the hardenable material poured between the forming walls.

Abstract: A double tie includes a pair of upper and lower straps connected in parallel relationship by a pair of vertical plates attached to the outward ends of the straps. The plates are oriented orthogonally relative to the straps to form a general "T" shape. A pair of stop straps are mounted on the plates intermediate the upper and lower straps, and projecting towards one another. The stop straps have orthogonal heads spaced inwardly from the plates a distance to retain a form panel between the head and plate. Each upper and lower strap has a hinge formed at each end, the hinges at each end of the upper and lower straps being coaxial and parallel to the plates, such that the upper and lower straps may be pivoted from a position generally orthogonal to the plates, to a position generally parallel to the plates.

Abstract: A form tie for interlocking parallel and spaced foam panels. The tie is formed of an elongate planar strap having a lattice arrangement of openings for flow of concrete. Each of the opposite ends of the strap have an end plate and an inside plate spaced to bracket a corner of a foam form panel with each of the plates extending in a perpendicular or "Y" axis direction to the longitudinal or "X" axis of the strap. Each of the end portions forming the bracket also has vane shelves extending between the end and inside plates in a "Z" axis direction to the strap for support of the foam form panel corner. "U" shaped holders in the edges of the strap and overcenter tabs in the openings provide retainers to hold reinforcement bars, commonly termed rebar. The strap is preferably formed of a heavy gauge polypropylene.

Abstract: A pin and wedge combination to couple adjacent panels of a concrete wall form together includes a self-retaining pin with a spring biased ball to temporarily retain the pin in the hole in the flange of the panel during assembly of a concrete wall form without adding significant weight to the associated components or the panels or requiring costly modifications to existing panels.

Abstract: An apparatus is used for adjusting the distance between two opposed form panels and includes a tie rod, first and second nut members, a seat member, a C-shaped clamp member and a bolt member. The tie rod passes through the first and second form panels, and has first and second threaded end portions which engage respectively the first and second nut members. The seat member has opposed first and second sides, and a through hole extending from the first side to the second side. The second nut member has opposite first and second ends. The second threaded end portion of the tie rod is positioned relative to the seat member when the second end of the second nut member abuts against the second side of the seat member. The C-shaped clamp member has two arm portions which engage the retaining cavities of the seat member.

Abstract: A modular assembly for creating formwork for casting vertical concrete structures is characterized by elongated elements having a generally concave interior surface which are disposed in edge to edge relationship in two facing rows, and which are simultaneously retained in edge to edge relationship and in facing relationship by connecting members. The connecting members comprise an elongated wall with a central portion between two outer portions. The elements have two extensions which extend laterally along the plane of the middle side of the elements. By engaging a connecting member to an element, the outer side of the element, the extension of the element and the outer portion of the connecting member form a triangular space providing structural rigidity to the formwork.

Abstract: A corner joint tie includes first and second forward plates connected along a common vertical edge and oriented at an angle of less than 180.degree. with respect to one another. A pair of first and second rearward plates are connected together at the same angle as the forward plates, and spaced rearwardly from the respective first and second forward plates by first and second straps. A rib is affixed along the length of each rearward plate to strengthen the rearward plates against flexion along their lengths. The inner and outer plates, associated straps, and associated ribs form an inner tie portion for retaining a pair of form panels at a corner. An outer tie portion is connected to the inner tie portion so as to retain a second pair of form panels parallel to the first pair of form panels at a corner.

Abstract: A wall form system for use in constructing a poured concrete wall includes a plurality of panels aligned in an edge-to-edge configuration to form spaced wall forms. The wall forms are maintained in a spaced relationship by a tie which includes a pair of cutouts which mate with notches in the side edges of each of the panels at the juncture between adjacent panels. A retainer is provided to secure each end of the tie to the outer face of the adjacent panels. After the concrete wall is poured and hardened, the wall forms are easily disassembled by breaking a first frangible section from the tie and removing the wall form panels and then breaking a second frangible section from the tie which is projecting from the concrete wall. The ties and retainers are disposable and easily assembled with the wall forms thereby alleviating the need for collection and retrieval when the wall forms are disassembled.

Abstract: Formwork for surfaces varying in curvature has a face sheet adjustable with respect to its curvature, girders supporting the face sheet and applied to the girders, in spaced relationship to the face sheet, there is a boom system which is composed of individual boom members bridging the girders and is suitably attached to the girders at the outsides thereof averted from the face sheet. Adjustment of the curvature of the face sheet is carried out by altering the effective length of the boom members between the girders. The mutually opposed formwork elements are adapted to be braced together by means of formwork anchor ties. A crosspiece in the form of a boom member is applied to a formwork element at at least two girders and simultaneously serves as an abutment for the formwork anchor tie, the latter therefore being arranged between and having its reaction forces transferred to the two girders.

Abstract: A wall form assembly (10, 10", 10'") has a pair of form wall assemblies (12A, 12B) which are kept in preselected spaced parallel relationship by means of cross members (16) fitted within end slots (36) and interlocked by means of pins (38) with elongate braces (30) mounted for movement from a low profile position for transport to a high profile operative position in which the width dimension (32) is transverse to the plane of the form wall (18-22B) for maximum resistance to bowing from the hydrostatic forces of wet cement.

Abstract: A standardized concrete form includes a series of rectangular slots spaced along the sides thereof and which extend virtually the entire length thereof which, along with mounting holes, permits the standardized hardware pins to join adjacent concrete forms at virtually an infinitely variable step height therebetween. The standardized mounting holes are formed in cloverleaf shape in order to accommodate and facilitate the insertion of hardware pins when adjacent forms are slightly misaligned.

Abstract: A latching bolt mechanism for fastening adjacent concrete form panels together to make a larger form work is disclosed. The mechanism includes a base permanently mounted on a form panel and a slidably attachable and detachable latching bolt mechanism having a tapered engagement pin for penetrating aligned apertures in the side rails of adjacent panel forms. The latching bolt further includes a tapered pin sleeve engaging portion that is received in the central bore of a pin sleeve, allowing transverse, shearing forces on the engagement pin to be readily dissipated. The pin sleeve in turn reciprocates within the central bore of a self-lubricating guide sleeve, which is seated within a housing block. A detachable mounting system includes a mounting bracket attached to the form panel and mating flanges on the housing block.

Abstract: An concrete form system includes opposed polystryrene panels stacked to form a pair of parallel, spaced-apart walls, at least one of the walls having panels which are smooth on their inward surface. Tie slots are formed in the upper and lower edges of the panels and are spaced evenly such that slots in vertically abutting panels are aligned. The panels are horiziontally staggered to strengthen vertical joints. A single tie is utilized to interlock two vertically abutting panels in each wall. A special tie design is used with the smooth-faced panels to allow the panels to be removed after a concrete wall has been formed. Another embodiment of the tie design utilizes an enlarged outer paddle with a projecting rib which allows connection of vertical walers directly to the tie.

Abstract: A segmental formwork for round structures has a framework consisting of soldiers (6) and polygonal stretchers (5) that can be adjusted angularly at the corner points. The formwork boards (12) of the formwork shell bear directly against the stretchers (5) and have a continuous curvature. The stretchers (5) are formed from structural shapes.

Abstract: A panel connecting member for use with tie rods and panels for a concrete forming structure, which panels each have bolt holding structures along the edges thereof. This member is tubular and has two connecting flanges extending outwardly from one side. Slots to receive bolts are cut in the edges of these flanges. First and second aligned holes are provided in opposite sides of the tubular member for passage of a tie rod. Channel-forming, longitudinally extending projections are provided on the side of the tubular member opposite said one side. These projections are adapted to receive between them flanges provided on the edges of the panels. The preferred panel has a corrugated, aluminum core member substantially covering an interior space of the panel defined by two siderails and two end rails. Inner and outer structural sheets extend between these two sets of rails and are both connected to said core member.

Abstract: Multipurpose concrete form panels are constructed using cross stiffener members for resistance to deflection under load. Each of the cross stiffener members is formed of a base strip of metal with a pair of parallel ribs of hat section extending therefrom and joined to opposite side rails of the form panel. Rail stiffener strips are fastened to the side rails on alternate sides of the rail for added rigidity. Bores for connecting pins extend through the side rails to join the panels side by side to form a wall or, using a corner form, to form a column. Bores through the side rails are positioned between the cross stiffener members and between the ribs in each pair of ribs for joining the side rails together with continuity of the cross stiffener members for maximum dispersal of stress. Holes for wall ties extend through the face of the form panel and between the ribs in each pair of ribs. Fasteners for the ends of the wall ties engage the pairs of ribs to disperse localized stress.

Abstract: A spacer/tie rod to space and hold reusable sections of concrete molds is, according to the principal embodiment of this invention, constructed of two main elements and two auxiliary elements cut from the same small diameter steel rod stock. The main elements are identical, with each having an elongated central section and upturned indexing sections at each end, while the auxiliary elements are identical and straight. The latter are welded to the former at positions where the auxiliary elements are spaced apart by a distance equal to a wall thickness, and the distance between each auxiliary element and the main element indexing section nearest to said auxiliary element is equal to the thickness of the frame that stiffens a form section. The indexing sections of the main elements are tool bendable between form positioning and form holding positions.

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: Prefabricated modular wallform units are formed with panels designed to mate against one another and to define an aperture through which a tie rod can pass. End rails at the mating edges of the panels have webs, interior end flanges to fit against a sheet of sheathing material (e.g., plywood), and exterior end flanges to be supported against strongback walers. Elongated kerfs are formed in mating edges of the interior and exterior end flanges. These mate to define a universal through-passage suitable for any of a variety of types of tie rod. A median flange extends along the length of the mating side of the web on a line intermediate the end flanges. The median flanges are narrower than the respective end flanges and serve as distance fingers for locating the tie rods. Universal holes are also provided in the webs adjacent the median flanges and on the sides away from the interior end flanges. A T-bolt can be inserted through the universal holes of two mating end rails to join two mating panels together.

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 method and apparatus is disclosed for forming insulated walls by pouring concrete directly on a form made in part of insulating material which will remain in place after the concrete sets. An apparatus for spacing the sheets of insulating material from the sheets of other material to create a concrete form is also disclosed, which also provides the function of bringing adjacent sheets of insulating material to create an adequate seal for the concrete. A tie holder for supporting cross members is also disclosed.

Abstract: Concrete form systems and hardware components thereof wherein the inner and outer walls are composed of abutting, side-by-side plywood sheets and are tied together by wall ties and stud-bearing plates, wherein the improvements reside in: metal straps serving as inside and outside corner braces with right angled legs having specially spaced, transverse, tie-rod-receiving slots in one longitudinal edge of each leg; rectangular plates having a center hole and two studs projecting from its inner face on opposite sides of the hole, said plate having longitudinal, flange edges or lips forming the sides of a trough in the outer face; flat, metal straps for securing filler strips between plywood panels, which straps have specially spaced, transverse, tie-rod-receiving slots in one longitudinal edge; and hingedly connected, rectangular panels forming a right angle corner for the outside wall, said panels being foldable to a shipping and storing position in which the panels are in overlying, substantial face-to-face pa

Abstract: A tie assembly for use in removably supporting plywood sheets or other wall defining materials in fixed spaced relationship to define a form into which concrete may be poured to form a portion of a structure. The tie assembly so operates that portions thereof not embedded in the concrete may be removed for future use after the concrete has set. The plywood sheets after removal and recovery of the outwardly disposed portions of the assembly may be separated from the set concrete wall. The tie assembly is adapted for use with forms defined by new plywood sheets, or forms in which previously used plywood sheets are employed that have bolt holes of relatively large diameter therein.

Abstract: An improved concrete form and tie rod, the concrete form and tie rod being constructed to facilitate disassembly of concrete form assemblies. The tie rods and concrete forms and structured to permit the ends of the tie rods to be broken off following completion of the concrete casting process to thereby facilitate removal of the aligning pins which hold the concrete forms of a form assembly together.

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 tie rod assembly to secure form panel elements in edge to edge engagement and tie opposed panels made of such elements in spaced apart relationship. The assembly employs a tie rod having a length less than the distance between the opposed panels and gripper mechanisms releasably engageable with the ends of the tie rod and proportioned for extension through tie rod openings formed in the panels. Key elements are engageable with the gripper mechanisms and the panel elements to lock the mechanisms in engagement with the rod and secure the panel elements in place. The rod is provided with enlarged heads at either end thereof for engagement by the gripper mechanisms and, in a preferred embodiment, the sides of the head are flattened.

Abstract: A form system for constructing concrete walls is assembled from groups of laterally-interconnected units that are spaced to define the opposite surfaces of the wall. Tie systems traverse the space and matching edge discontinuities in adjacent units, with the pressure of the poured concrete being transferred from the form units to the tie systems by cross pins directly intersecting components of the tie systems and the marginal frame members of the units at the edge discontinuities. Transverse frame members provide mounting points for studs that interengage to laterally locate a pair of form units placed back-to-back, and members provide protected storage positions for tie components when they are not in use. Handles, and also fastenings securing panels to the frames, are positioned within the space enclosed by the frames to avoid interference in the back-to-back storage position of the units.

Abstract: A concrete wall form includes a support structure comprising a beam capable of functioning as a stringer or stiffback and which includes a bolt holding channel, a nailer channel and an internal channel for telescopically receiving an extension splice. A tie rod locking system is associated with the support structure for readily adjusting the forms.

Abstract: A clamping lock is provided for use with a looped tie in a form for settable casting compositions, such as concrete, which lock is provided with protrusions on each of a pair of clamping members to fit into aligned connector slots of a pair of rails of adjacent panels of the form to properly position and firmly secure the lock to the form. The securing of the clamping members on the rails also holds adjacent panels of the form together. The rails are provided with tie notches which when panels are placed side by side and properly aligned the tie notches form tie slots through which a tie having loops at each end can be extended between panels of opposing sides or walls of the form structure. A tie opening is formed in the clamping lock through which the loop of a tie is adapted to extend. An anchor lock having a tapered arm is mounted on the clamping lock so that its arm can enter into a tie loop extending through the tie opening to secure the tie to the clamping lock and to tension the tie.

Abstract: Wall form panels with flanges along adjacent edges are joined by a channel strip traversed at the base of the channel by tie systems securing opposite panel assemblies in spaced parallel relationship to receive concrete between them. Securing bolts or wedge pins traverse the adjacent flanges and the walls of the junction channel, and the tie systems are cross-pinned to the assembly to positively establish the spacing of the opposite panel assemblies. A series of tie system components is preferably sub-assembled to the channel so that this separately-connected group of parts can be handled as one unit as it is interposed between the edges of the form panels, and held in place by the panel-securing fasteners.

Abstract: Removable form for use in pouring concrete walls, the form being comprised of a high strength, impact resistant, light weight material and being constructed to provide thermal insulation of concrete poured between two of the forms. The forms are each comprised of a face plate backed by an insulative support structure. The insulative support structure has a honeycomb construction filled with an insulative material, the honeycomb construction providing strength to the insulative support structure to prevent bending or distortion. A supporting frame is further provided as a structural supporting backing for the insulative support section to increase its resistance to bending.

Abstract: Providing vertically erect sets of oppositely positioned forming panels, with the sets being interconnected by means of tie rods and wedging plates. Some of the wedging plates are positioned adjacent to edge portions of their related panels so as to form an overlap between abutting panels and thus provide support therebetween. In providing a form of greater height where sets of panels are placed one on top of another, a first wall of such panels is provided in two vertical sets, with vertical walers bracing vertically aligned panels, and overlapping wedging plates providing proper alignment and connection between laterally adjacent panels. An opposite wall made up of two sets of panels is provided in a similar manner, but with a horizontal waler or walers providing for support and alignment.

Abstract: The invention relates to a shuttering system which has a series of connector or distance elements, the elements having formations which receive complemental formations in the shuttering panels, the portions outside of the formations being capable of being broken off or removed when the shuttering panels are removed, leaving the remainder of the element in the wall.

Abstract: A form for concrete which has inner and outer walls spaced apart. Each wall is formed by a plurality of vertical elements abutting each other vertically. A row of whaler lookout plates are mounted on the abutting sides of the vertical elements and support a whaler rod which holds the vertical elements together to form a wall.

Abstract: Metal wall form sections are adapted to a bolted tie system providing accurate spacing of the opposite panels defining a space to receive poured concrete. In the preferred form of the invention, interengagement of the form structure and the tie system (providing the spacing feature) is also used to secure the form sections laterally to each other. In another form of the invention, wedges transversely engaging the bolts bridge across and bear on the flanges of marginal beams of adjacent form sections to establish relative placement against the pressure of the concrete.