Abstract: A tie system can include a concrete tie, a tie sleeve, and one or more tie sleeve connectors. The tie sleeve has a channel extending therethrough between first and second ends with openings at each end to provide access to the channel. The channel and openings are configured to have the concrete tie disposed partially within the channel with ends of the tie extending out of the openings. The tie sleeve connector has a generally T-shape formed by a first portion and a second portion. The first portion can be selectively inserted into and secured within the channel. The second portion extends from the first portion and is configured to be connected to another component such as an insulation panel.

Abstract: A precast segmental pier reinforced with both FRP bars and steel bars according to one or more embodiments of the present application includes a footing, a segmental pier, longitudinal bars and unbonded post-tensioned tendons, characterized in that: the segmental pier is comprised of one or more precast segments, the longitudinal bars are comprised of both the steel bar and the high-strength steel bar, connecting the footing and the segmental pier together with unbonded post-tensioned tendons to form an entire pier.

Abstract: A spacer device (10) for formwork, comprising a hollow tubular body (2) extending around a longitudinal axis (X-X) is described, said tubular body (2) being configured to house a cross tie rod (7) and comprising: two side tubular portions (2a,2b); each side tubular portion (2a,2b) comprising fastening means at one end; and at the remaining end, a tapered portion (3a,3b) configured to rest on the wall of the formwork; characterised by comprising a ball joint (5a,5b) interposed between each tapered portion (3a,3b) and the respective side tubular portion (2a,2b) to couple each tapered portion (3a,3b) with the respective side tubular portion (2a,2b).

Abstract: A device for linking separate members of a dowel cradle, comprising a bar; and at least two couplings, located on the bar. A dowel cradle comprising: at least one load transfer dowel; a basket having a pair of elongate members spaced apart from each other to support the load transfer dowel thereon; a device comprising: a bar located between the two elongate members of the basket; and at least two couplings located on the bar, each coupling being attached to a respective one of the elongate members of the basket.

Abstract: A precast segmental pier reinforced with both conventional steel bars and high-strength steel bars according to one or more embodiments of the present invention includes a footing, a segmental pier, longitudinal bars and unbonded post-tensioned tendons, characterized in that: the segmental pier is comprised of one or more precast segments, the longitudinal bars are comprised of both the conventional steel bar and the high-strength steel bar, connecting the footing and the segmental pier together with unbonded post-tensioned tendons to form an entire pier.

Abstract: The disclosure relates to a formwork panel comprising: a formwork panel member having a front side for delimiting a space to be filled with concrete, a back side opposite the front side and a through-opening extending from the front side to the back side for allowing passage of a tie rod therethrough, the through-opening having a first cross-sectional area; an adjustment member extending across the through-opening of the formwork panel member, the adjustment member having a through-hole with a second cross-sectional area smaller than the first cross-sectional area of the through-opening of the formwork panel member, the through-hole being moveable relative to the front side of the formwork panel member. Furthermore, the disclosure relates to a formwork system and a method using such formwork panel.

Abstract: The instant invention provides a secure holding spacer unit to be used when assembling permanent stay-in-place formworks, also known as “permanent stay-in-place molds”, which are commonly used for the construction of concrete structures by putting together two boards or panels held together by a series of holding spacer units that are securely attached or hold to the surfaces of the cement panels by fastening means that pass through the width of the panels. The holding spacer units are selectively distributed within the internal cavity of the formwork and are attached to the panels, and are designed so that the panels remain permanently attached to the units of the spacers, to restrict the outward movement of said panels when pouring the concrete mix in the unit, which results in a permanent formwork with smooth exterior surfaces.

Abstract: A connection assembly for formwork elements includes a counterplate, a bolt, and a bolt block. The counterplate can include a plurality of surfaces having differing heights that selectively engage with a waler during engagement or disengagement of the bolt from the formwork element. The formwork element can include a J-shaped waler that allows for easy climbing and/or hanging of objects on a site. The connection assembly can include a bolt block that removably engages a formwork element.

Abstract: The invention comprises a product. The product comprises a first removable concrete form having a concrete forming face and a first insulating panel insert having a first primary surface and an opposite second primary surface, wherein the second primary surface of the first insulating panel insert contacts the concrete forming face of the first removable concrete form. The product also comprises an elongate anchor member having an enlarged portion and an elongate portion, the elongate portion having a first end and an opposite second end, wherein the enlarged portion is disposed adjacent the first end and contacts the second primary surface of the first insulating panel insert and wherein the elongate portion extends through the first insulating panel insert and extends outwardly from the first primary surface of the first insulating panel insert. A method of using a removable insulated concrete form system is also disclosed.

Abstract: The invention provides for a pocketed anchor for post-tensioned concrete reinforcement. The anchor includes a body having a flange portion with a front and rear surface, a button portion extending from the rear surface, and a nose portion extending from the front surface. The anchor also includes a tapered bore that extends through the nose, flange, and button portions. The bore can receive a wedge that cams against the bore to clamp down on a tendon. The front surface of the flange has at least two planar surfaces that are parallel to the bearing surface on the rear surface of the anchor. One of the planar surfaces is recessed relative to the other such that the recessed surface is closer to the load bearing surface on the rear surface of the anchor. The two planar surfaces define a pocket on the anchor, where mounting holes may be located.

Abstract: The invention provides for a pocketed anchor for post-tensioned concrete reinforcement. The anchor includes a body having a flange portion with a front and rear surface, a button portion extending from the rear surface, and a nose portion extending from the front surface. The anchor also includes a tapered bore that extends through the nose, flange, and button portions. The bore can receive a wedge that cams against the bore to clamp down on a tendon. The front surface of the flange has at least two planar surfaces that are parallel to the bearing surface on the rear surface of the anchor. One of the planar surfaces is recessed relative to the other such that the recessed surface is closer to the load bearing surface on the rear surface of the anchor. The two planar surfaces define a pocket on the anchor, where mounting holes may be located.

Abstract: A mine seal comprising two spaced apart walls, at least one electrically non-conductive tie extending between the walls and holding them in place against forces tending to separate the walls, and a filler material filling the space between the walls. A form for making such a mine seal is also disclosed.

Abstract: It is an object of the present invention to provide a display device that has a structure of an electrode where a residue of a transparent conductive film is not generated when a weak acid solution is used in etching, which is particularly appropriate for an electrode of a light-emitting element. A display device according to the present invention has an electrode that has a laminated structure of laminated transparent conductive films, and the electrode has a first transparent conductive film as the bottom layer, where no residue is generated when a weak acid solution is used in etching, and a second transparent conductive film as the top layer, which has a work function of 5.0 eV or more.

Abstract: A formwork tie rod (1) which is provided with a thread on the end portions (2, 3) has a conical plastic sheath (4) between the threaded portions (2, 3) for removal from the hardened concrete. For form-fitting connection to the plastic sheath (4) the tie rod (1) is provided with projections between the threaded portions (2, 3).

Abstract: Improved concrete form systems (10) are provided which permit erection of the systems (10) in close quarters adjacent existing structures, e.g., the systems (10) may be successfully installed with as little as 2-½ inches of clearance between such existing structures. The systems (10) include spaced apart outer and inner wall sections (12, 14) each formed of juxtaposed, interconnected form panels (16, 18, 20, 22), with connection assemblies (24, 25) serving to interconnect the adjacent form panels (16, 18, 20, 22) of each wall section (12, 14), and to cross-connect the wall sections (12, 14). Each form panel has a planar panel segment (26) having side marginal connection structures (48) preferably including concave surfaces (50, 52).

Abstract: A formwork assembly for casting a concrete structure includes a support member for supporting a conventional armature grid if any, further including at least one liquid-tight and load-bearing formwork wall connected to the support member. The formwork wall includes at least two panels, each defining a peripheral edging having at least one first dovetail joint element about its peripheral edging. Each formwork wall also has a panel connector having at least two second dovetail joint elements, each second dovetail joint element being complementary to the first dovetail joint element of a corresponding panel and is interlocked with the first dovetail joint element of a corresponding panel to form a dovetail joint, the connector holding the panels in an edgewisely juxtaposed fashion to form a continuous formwork wall. The formwork assembly includes a securing member for securing the connector and panels together, and a supporting structure for supporting the formwork wall.

Abstract: A 3D construction module comprising at least one vertically upstanding panel with first and second mesh layers oriented generally transversely and longitudinally. The first and second mesh layers have at least one rod member mounted to said panel and are vertically spaced from each other. The rod members form a first horizontally projected retention cell to restrict translation of a bar held in said retention cell between said first and second mesh layers. A third mesh can also be provided to form a second retention cell between said second and third mesh layers. The first and second retention cells restrict translation movement longitudinally and transversely of a vertical reinforcement member held in said first and second retention cells, and restrict rotation of the vertical reinforcement member about both a longitudinal axis and a transverse axis of the said 3D construction module. Horizontal reinforcement meshes are features of the invention.

Abstract: A concrete wall form that can readily be used with different types of form ties systems to construct parallel form sections for receiving poured concrete. The form includes first and second tie rod engaging portions configured to receive first and second types of tie rods, respectively. In one aspect of the invention, the first tie rod engaging portion is configured to receive frangible tie rods in the form of elongate wires or flat strips. In another aspect of the invention, the second tie rod engaging portion is configured to receive tie rods having threaded bars that extend through tubes and between parallel wall form sections.

Abstract: A tie-rod assembly which is adapted to be interconnected between two opposite wall forming sections that define a concrete receiving region where a concrete wall is formed. The tie-rod assembly comprises an elongate threaded tie-rod on which is positioned a sleeve section. The sleeve section has an elongate tapered sleeve with a frusto conical tapering outer surface, with a smaller diameter and fitting closely to the tie-rod and a larger diameter end. A threaded locating member is connected to the large diameter end, and by rotating the positioning member, the position of the sleeve section can be adjusted along the length of the tie-rod.

Abstract: A concrete wall form that can readily be used with different types of form ties systems to construct parallel form sections for receiving poured concrete. The form includes first and second tie rod engaging portions configured to receive first and second types of tie rods, respectively. In one aspect of the invention, the first tie rod engaging portion is configured to receive frangible tie rods in the form of elongate wires or flat strips. In another aspect of the invention , the second tie rod engaging portion is configured to receive tie rods having threaded bars that extend through tubes and between parallel wall form sections.

Abstract: A method and apparatus for forming an anchorage of a post-tension system in which a tendon is positioned within a cavity of an anchor such that an end of the tendon extends outwardly of the cavity, a plurality of wedges are mechanically inserted within the cavity between the tendon and a wall of the cavity, and pressure is applied to an end of the tendon such that the tendon and the wedges are in interference-fit relationship with the cavity. A compression mechanism is used having a cylindrical member and a plunger extending in a channel of the cylindrical member. The wedges are attached to the cylindrical member and the cylindrical member is moved toward the cavity such that the wedges enter a space between the tendon and the wall of the cavity. The plunger applies a compressive force to the end of the tendon when the end of the tendon is in the channel of the cylindrical member.

Abstract: A form member comprises a strip-shaped main plate portion, which is flat at least on its front surface, a horizontal pair of strip-shaped side plate portions extending from both sides of the main plate portion toward its rear surface perpendicularly to the main plate portion, and a reinforcing plate provided to extend from the rear surface of the main plate portion substantially in parallel with the horizontal pair of side plate portions. Each of the side plate portions and the reinforcing plate includes an enlarged end portion over a prescribed width from its opening end. An end plate body having an engaging portion of a shape for tightly engaging with an end of the form member body engages with this end, to form a single form member. A concrete form member reduced in thickness and weight and enabled to suppress inconvenient deformation in concrete placing can be provided due to this structure.

Abstract: The present invention relates to a ready-mixed concrete placing method wherein at least two holding members H comprising formwork fixing blocks 10 and threaded rods 11 screwed into tapped holes 10a in the formwork fixing blocks are arranged at a predetermined interval; a formwork unit configured by mounting formworks 12 on the formwork fixing blocks are placed on a foundation member 13; the threaded rods are subsequently rotated so that the formwork fixing blocks with the formworks mounted thereon are moved along the threaded rods in the vertical direction, thereby leveling the formworks; and then ready-mixed concrete is filled in a space provided between the opposed formworks up to their upper-end surfaces. The present invention improves the concrete leveling accuracy and enables even those who are not highly skilled to construct a concrete foundation with a sufficient leveling accuracy.

Abstract: An anchor for a post-tension anchorage system includes an anchor member with an end surface, a polymeric encapsulation covering the anchor member having a tubular section extending outwardly from the end surface of the anchor member, and an improved cap having a generally tubular body with an open end and a closed end. The tubular section of the encapsulation includes an inwardly extending protrusion. The improved cap has a flanged end adjacent an open end of the tubular body of the cap. This flanged end has a circumferential surface. A locking member is formed on the circumferential surface for detachably engaging the protrusion such that the flanged end is fixedly received within the tubular section. A compressible seal is affixed within the polymeric encapsulation and extends around the end surface. The cap has an annular surface extending around the open end and in compressible contact with the compressible seal when the locking member engages the protrusion.

Abstract: A wall forming system and method having a parallel form panels secured together by an adjustable support structure to form a cavity therebetween. The cavity being filled with hardenable material. The support structure having an elongated threaded member with a adjustable frame mounted upon the threaded member along either side of the parallel form panels. Mounts are placed upon the threaded member and rotated to hold the frame in position against the form panels. Rotation of the mounts can serve to impart a curvature to the forming system.

Abstract: A pocketformer apparatus for a post-tension anchor system including a tubular member with an outwardly flanged end, a securement member affixed to the tubular member, and a cup member having an interior opening such that the tubular member extends through the interior opening. The tubular member has an interior passageway extending from the flanged end to another end. The flanged end engages an anchor of the post-tension anchor system. The cup member is interposed between the flanged end and the securement member on the tubular member. The tubular member has an externally threaded area extending inwardly of the end opposite the flanged end. The securement member is threadedly received by the externally threaded area. An annular ring is formed on the flanged end of the tubular member so as to engage a receptacle formed on the anchor. The securement member, the cup member and the tubular member are formed of polymeric material.

Abstract: A concrete form securing device includes two or more securing frames combined together, plural spacing bars, plural engaging members, and plural fixing boards as main components. The two securing frames are temporarily kept in place by a sustain bar and two or more annular clampers and then combined with the horizontal fixing boards and secured by the engaging members, the support boards, the cushion members, and the engaging members, and a pair of two securing frames are kept spaced apart by the spacing bars so as to form a space between two rows of the securing frames, and a concrete wall may be formed in the space, after the sustain bars and the annular clampers are removed.

Abstract: A concrete form spacing fixture comprises a bar type separator having a prescribed length which is provided with a male screw on its end portion, an attachment which is provided with a concave part having an open end and so formed that the open end of the concave part defines an end surface perpendicular to the longitudinal direction of the separator in a state fixed to the end portion of the separator, and a fastening member having a female screw forming part provided with a female screw to be fitted with the male screw of the separator with an outer diameter smaller than an opening diameter of the open end of the concave part of the attachment on an end thereof so that a flange type stop part is provided on a base portion of the female screw forming part. According to this structure, no male screw is inserted in a hole of a form panel, whereby the form panel is prevented from breakage caused by a bite of a thread.

Abstract: Apparatus, method and product of in situ attachment of insulation panels to poured concrete walls as the walls are formed. Polymeric F-shaped strips are attached to novel tie bars by spring clip retainers, and receive the edges of insulation panels to hold them against the forms so that uncured concrete is poured between the forms and against the panels. After the concrete is cured, the forms are removed, leaving the spring clips and tie bars in the concrete, and resulting in a concrete wall having insulation panels and secured strips, the strips also serving to receive dry wall fasteners.

Abstract: Apparatus, method and product of in situ attachment of insulation panels to poured concrete walls as the walls are formed. Polymeric F-shaped strips are attached to novel tie bars by spring clip retainers, and receive the edges of insulation panels to hold them against the forms so that uncured concrete is poured between the forms and against the panels. After the concrete is cured, the forms are removed, leaving the spring clips and tie bars in the concrete, and resulting in a concrete wall having insulation panels and secured strips, the strips also serving to receive dry wall fasteners.

Abstract: A retaining member for retaining spaced rigid members within a concrete matrix. A form for shaping the concrete matrix includes a base, a planar shaping surface for supporting the concrete matrix during its initial setting period, and a supporting member located on the rear side of the shaping surface. The retaining member includes a compressible hollow cylinder, preferably made of a foamed polymeric material. Portions of the retaining member are associated with the form and the supporting member, holding the retaining member in place to retain each rigid member in a parallel position to the other rigid members.

Abstract: Apparatus, method and product of in situ attachment of insulation panels to poured concrete walls as the walls are formed. Polymeric F-shaped strips are attached to novel tie bars by spring clip retainers, and receive the edges of insulation panels to hold them against the forms so that uncured concrete is poured between the forms and against the panels. After the concrete is cured, the forms are removed, leaving the spring clips and tie bars in the concrete, and resulting in a concrete wall having insulation panels and secured strips, the strips also serving to receive dry wall fasteners.

Abstract: A system for forming architectural concrete walls, comprises a plurality of modular form units, each form unit comprising a generally rectangular support frame, a backing sheet and an overlying facing sheet, each facing sheet having a facing surface defined by a plastic material, an elastic seal along an edge of the form unit for positioning between adjacent form units for preventing water leakage, a minimal number of tie holes extending through the each form unit, a seal tube assembly for positioning between the tie holes, and a tie rod for each tie hole.

Abstract: A quick release tie includes an elongated strap having retainer plates removably connected to the opposing ends of the strap. Each retainer plate includes a cylindrical body portion which extends through an aperture in a form panel, a generally flat panel affixed to an outer end of the body portion to prevent movement of the form panel outwardly off of the retainer plate, and a conical inner end tapering to a smaller diameter at the inner end of the body portion. The body portion inner end is interiorly threaded, and selectively engages exterior threads on the opposing ends of the strap to permit selective removal of the retainer plates. A socket formed in an outer surface of the retainer plate panel permits engagement of a tool for rotating the retainer plate so as to engage or disengage the retainer plate from the strap ends.

Abstract: Apparatus for in situ attachment of insulation panels to poured concrete walls as the walls are formed. Preferably, polymeric F-shaped strips are attached to novel tie bars by transverse retainers, and receive the edges of insulation panels to hold them against the forms so that uncured concrete is poured between the forms and against the panels. After the concrete is cured, the forms are removed, leaving the insulation panels and the strips, the strips serving to receive dry wall fasteners.

Abstract: A sleeve assembly for forming a lined opening in molded structures made from concrete or the like. The sleeve provides the lining. During formation of the structure, the sleeve is held in place by a pair of generally hemispherical end cups having tapering and/or curving surfaces for supporting sleeves of a variety of sizes. The end cups are preferably held in place by a retainer which passes through the sleeve and is connected to the end cups by loose fitting clips which are mounted in the end cups. The sleeve assembly is adapted to be secured between a pair of generally parallel panels between which a molded structure such as a wall is formed.

Abstract: A clamping and fixing arrangement which functions to fixate the various elements of formwork or shuttering, preferably intended for moulding concrete. The arrangement is mainly characterized by an eccentric locking device which is provided with an expandable eccentric part and which has a predetermined axial extension in an expanded state and an axial extension which is smaller than the predetermined axial extension in a non-expanded state. The arrangement includes a form tie and related formwork or shuttering.

Abstract: A one-piece, unitary, molded resin wall sleeve precursor has two cup-shaped end sections of external diameter D1 each having a hollow transition section of enlarged diameter that connects the end section to a sleeve of internal diameter D1; one transition section has an outer diameter D2 and the other has an inner diameter just slightly larger than D2. D2 is appreciably larger than D1. A wall sleeve assembly of extended length is derived from two of these precursor members by cutting off the end sections; the precursor members can then be joined with a strong, inexpensive, welded joint to afford a long wall sleeve of consistent internal diameter.

Abstract: Formwork structure for erecting continuous surfaces on one or both sides of a casting cavity. A formwork member with a plurality of openings defines the surface of the casting cavity. Form stays (32) extend through the openings in the formwork member surface into the casting cavity. Formwork stiffening members are located adjacent to the formwork member surface outside the casting cavity. The formwork members are arranged to define longitudinal and transversal mutually crossing channels with openings for receiving the form stays. The formwork members define the walls and base of the channels, which open outwardly away from the casting cavity. Side plates are connected to the formwork members at the edge of the formwork structure to create substantially rectangular structures. A rod-shaped connecting member is used to join adjacent sections of formwork structure. Arm crosses with a central opening for receiving the form stays are located in the crossing channels.

Abstract: An apparatus for forming voids in concrete which includes baseplates secured to a wood supporting deck or form for a concrete floor by a plurality of removable screws and a removalbe sleeve attached to each baseplate and having a height generally equal to the thickness of the floor with the upper end of the sleeve being accessible and observable when concrete is poured. After the baseplates have been secured in place, various subsequent work procedures may be carried out without the workers encountering obstructions that would exist if upwardly projecting cavity forming members were attached to the wood deck. A sleeve is then attached to each baseplate immediately prior to pouring concrete. After the concrete has been poured and set, the sleeves are detached from the baseplates and removed. The wood deck can then be stripped from the bottom of the concrete floor and the baseplates removed for reuse.

Abstract: A conical spacer assembly for supporting and spacing one member relative to another member comprising a conical housing having a smooth outer surface and hole extending axially therethrough for receiving at one or both ends thereof a bolt in threaded arrangement therewith. A flat circular shaped clamp having an aperture extending laterally therethrough is provided for receiving through its aperture the housing of the spacer which clamp snugly engages the housing at a point along its length laterally thereof and engages and supports a rebar at one or more point around its periphery.

Abstract: A concrete form tie assembly in which the tie rod is formed from a high tensile strength flexible wire member, with the sleeve being formed of a flexible or yieldable material. A short sleeve member is inserted into the spacer sleeve adjacent one end with washer members on opposite ends thereof for retaining on the tie rod member which is provided with spaced protrusions for coaction with the wash members, the tube and washer assembly serving to rigidify the assembly for assisting in insertion and removal of the tie rod and sleeve as a unit. The leading end of the tube and washer assembly may be provided with a conical end to act as a guide. The ends of the tie rod member are enlarged, such as by welding head members thereto, the head members being configured for coaction with conventional hairpin or snap tie wedge members.

Abstract: A one-piece, unitary, molded resin wall sleeve precursor member has cup-shaped end sections of external diameter D each having a radial flange, with each flange connecting to a hollow transition section that in turn connects to one end of a series of N coaxial sleeve sections of internal diameter D, the sleeve sections being interconnected by N-1 hollow water stop sections having diameters much larger than D. A wall sleeve assembly is derived from this precursor member by cutting off the end sections at their flanges and cutting off the transition sections to leave a wall sleeve, including the water stop and sleeve sections, having a total length L approximately equal to the width W of a concrete wall. The cup-like end sections are inserted into the ends of the wall sleeve, and their flanges afford a convenient means to anchor the resulting assembly to a concrete form.

Abstract: A spacer system for concrete forms is described for composite concrete constructions walls which permits the forming materials to remain intact with the concrete poured into the forms. The forming materials then become the exterior surfaces of the mold, saving considerable time and money usually expended in finishing or molding a design into the exterior surfaces.

Abstract: A formwork panel for constructing concrete walls having a forming skin supported by a steel frame in which a plurality of holes are provided for receiving a tie rod. The holes are provided with a plastic bushing which extends through and is fastened in the frame. The bushing has a conically tapered bore, the surface of which is continuous and smooth. This makes the removal of concrete from the bore extremely easy (FIG. 3).

Abstract: A shuttering for casting therein concrete structures is composed of panels, a set comprising at least two panels each of which is provided along at least one edge thereof with two parallel grooves in combination with at least one rail for connecting the panels such rail having profiled portions fitting into either of the grooves, means being provided on the said rail for forcibly urging the panels towards one another whenever the said profiled portions of the rail are engagingly inserted in the grooves of the two panels.

Abstract: A form tie and a method of making the same is provided. The form tie includes an elongated hollow protective sleeve contiguously surrounding a portion of the form tie to facilitate the removal of the form tie portion from a settable casting, such as concrete. The thickness of the sleeve is minimized so that the cross-sectional area of the form tie portion which includes the surrounding sleeve is also minimized.

Abstract: The specification discloses concrete forms each including a plurality of rectangular panels secured edgewise together by connectors. Each connector includes a pair of half sleeves secured in a pair of grooves in the edges of the panels, and a cupped head of a connector sleeve wedges the half sleeves together to hold the panels in edgewise abutment. A nut screwed on the connector sleeve draws the cupped head into wedging engagement with the half sleeves. Tie rods extend through the connector sleeves. The panels include wood framing having plywood faces and filled with foamed plastic.

Abstract: A beam clamp for securing a concrete form in forming beams, lintels, etc. having a pair of spaced apart legs secured together by a cross bar that permits one leg to pivot toward and away from the other leg and a pivoted lever operating as a cam for pivoting the first leg when mounting and dismantling the beam clamp from a form after the concrete has been poured and set.

Abstract: A sleeve assembly for forming a lined opening in molded structures made from concrete or the like, the sleeve providing the lining and being held in place during formation of the structure by a pair of conical sleeve lock elements having extended tapering surfaces for supporting sleeves of a variety of sizes, the sleeve lock elements preferably being held in place upon forming panels for the structure by means of a central stabilizing rod penetrating through the sleeve lock elements and the panels. An additional embodiment of the sleeve assembly is adapted to be secured to a generally horizontal panel upon which a molded structure such as a floor is formed.