Abstract: A pocket, lid and shield for casting a pulling iron in a concrete structure are described. The pocket includes a slot reinforced with stiffening members for receiving the pulling iron. The pocket also includes a frangible support post for supporting the pulling iron when it is received in the pocket. Also described are embodiments of a shield, which include clipping members adapted to engage the stiffening members, for covering the slot, and a lid having a lip for engaging a peripheral groove in the pocket. Methods of over-molding a pulling iron cable are also described. According to the methods, a temporary seal, which can be used in over-molding a subsequent pulling iron cable, can be formed simultaneously with each over-molded product. During molding, the cable can be held in the center of a channel in the mold tool using a retractable magnetic pin.

Abstract: A concrete anchor. The concrete anchor can be embedded within a concrete member to enhance lifting of the concrete member. The concrete anchor of the present invention can include a bar having a first end, a second end positioned adjacent the first end, and an intermediate portion curved to at least partially define an aperture. The aperture can be adapted to engage lifting hardware. The concrete anchor can further include a stem and a foot. The stem can include a first end coupled to the first end and the second end of the bar, and a second end coupled to the foot.

Abstract: The present invention relates towards an erection lift anchor with welding plate assembly for embedment in a concrete member, such as a precast or tilt-up wall. The erection anchor of the present invention allows for concrete members, such as walls, to be positioned by the use of standard lifting equipment (cranes with cable attachments, etc.) by connecting lifting attachments to the erection lift anchor which is embedded in a concrete member. The present invention also allows for concrete members to be connected together via the erection lift anchor whereby the welding plate of one erection lift anchor embedded in a first concrete member is welded to the welding plate of another erection lift member embedded in a second concrete member.

Abstract: A foundation haunch assembly used for attachment to a foundation wall and a method of making the haunch assembly using a concrete block machine. The haunch assembly includes a concrete haunch having an upper portion, a center portion and a lower portion. The upper portion of the haunch includes a flat top surface adapted for receiving a portion of a pre-cast concrete slab, stairs, stoops, poured in place concrete slab or other building structure thereon. Also, the upper portion includes an internal horizontal metal support rod along the length thereof. One end of the support rod is threaded to one end of a threaded coupling. The foundation haunch assembly also includes a variable length foundation bolt with a threaded end threaded into an opposite end of the threaded coupling. The foundation bolt is adapted for receipt through a hole in a portion of a vertical foundation wall. An opposite threaded end of the foundation bolt is attached to a nut.

Abstract: A plastic insert for concrete structures includes a barrel for receiving a threaded fastener. According to one embodiment, the insert includes a housing at a distal end receiving an internally threaded member for engaging the threaded fastener. The insert includes bar-engaging members at the distal end for contacting concrete-reinforcing bars of the concrete structure. The insert also includes a bar-engaging member at the proximal end including a retainer defining a substantially semi-circular channel for receipt of a U-shaped portion of a bar. According to another embodiment, the insert includes a base at the distal end extending outwardly from the barrel to define an anchoring surface oriented perpendicular to the barrel axis. Longitudinal ribs on the barrel include segments arranged in series. Each segment of the rib extends radially to a distance that decreases with each succeeding segment such that each segment defines a bearing surface.

Abstract: An anchoring device adapted to be partially buried in a concrete member during forming thereof for cooperation with a pick-up unit, the anchoring device comprising an integrally formed lifting pin and a void former.

Abstract: A void former for positioning an anchor within a concrete structure is comprised of a hollow polymeric body having first and second sections hinged together for movement between a closed condition engageable around the anchor received therebetween and an open condition in which the sections are separated at the lower portions thereof to release the anchor received therebetween. The void former is monolithically formed by injection molding and includes integrally formed latch elements on the respective sections for mutual engagement to secure the sections in the closed condition and a bridge between the sections to provide a hinged connection therebetween. In the injection molding process the sections are formed so as to be positioned in the open condition. Upon removal from the injection mold, the sections are hinged relative to one another by bending the bridge therebetween, before the polymer is fully cured.

Abstract: One preferred embodiment of an improved concrete anchor designed in accordance with the present invention for embedment in a concrete panel or the like includes an elongated bar having substantially flat parallel faces, an inner end disposed within the panel, an outer end disposed within a recess in the surface of the concrete panel and side edges extending between the faces. The side edges extend in continuously diverging relationship from adjacent the outer end to adjacent the inner end. In accordance with another embodiment, the preferred concrete anchor includes an elongated bar having substantially flat parallel faces; an inner end disposed within the panel; an outer end disposed within a recess in the surface of the concrete panel; and side edges, preferably substantially straight, which extend in a substantially parallel relationship between the faces. The outer end includes spaced, outwardly-projecting extensions disposed adjacent the side edges of the bar and, preferably, an elongated opening.

Abstract: A concrete embedding anchor includes. An anchor including an anchor body having a head at one end of the shank and a stopper at the other end, a fitment concentrically mounted to said head and having an external thread and easy breaking portion formed on the round bar portion thereof, and a hemispherical shell-shaped former fitted with the middle portion of said anchor shank. A retainer is secured to the concrete form in advance, said anchor fitment is inserted into and screwed up to said retainer, said anchor is combined with the concrete form, then concrete is poured, and said concrete form is taken away after the concrete has hardened.

Abstract: A thin, prestressed concrete panel, having a thickness of about one and one-half inch thickness or less, and apparatus for making the same is disclosed. Pairs of prestressed tendons extend between the side and end portions of the panel. The tendons of each pair are positioned on each side of the mid-plane of the panel and spaced from such mid-plane so as to increase panel strength and prevent warping of the panel. A molding apparatus for casting the panel comprises a bottom plate, a pair of opposite side portions, and a pair of opposite end portions. Slots are defined in the side and end portions through which tendons are inserted prior to pouring concrete in the mold. Tensioning means are provided for prestressing the tendons in the longitudinal and lateral directions of the panel.

Abstract: A lifting insert for prefabricated concrete components with a bracket for increasing the shearing strength thereof. The insert is embeddable in the body of the component proximate to one of the faces of the component so that one of its ends protrudes, or is otherwise accessible, from the face of the component so that it is engageable by lifting means. The bracket of the insert comprises at least one brace, which is connected to the insert and is also embeddable in the body of the component. The brace is constituted by a lamina that wraps around the insert in a scarf-like fashion with one of its portions.

Abstract: A pulling iron facility for encapsulation in a concrete structure has an elongated strength member with an intermediate portion forming an upwardly extending loop. The strength member has opposed end portions extending laterally away from the loop. A sleeve at least in part encapsulates the strength remember, and includes a planar flange below at least a portion of the loop and defining an enclosed loop aperture. The sleeve includes a number of protrusions spaced apart from the flange.

Abstract: An object handling device includes a support body (32), and an elongate anchor body (40) mounted at the inner end thereof to the support body so as to project from the support body for insertion into an undercut cavity (28) in an object to be handled. At least one anchor lug (48a, 48b) at or adjacent to the outer end of the anchor body is movable with the anchor body between a first position in which the anchor body is able to be inserted into or withdrawn from the cavity, and a second position in which the lug(s) engage respective undercut shoulder portions (29) in the cavity. Means (42) on the anchor body is engagable for moving the anchor body (40) to move the anchor lug(s) between the first and second positions. Lift means (60) on the support body is engagable by a crane to lift the object. Lock means (50, 51) is provided to block movement of the anchor lug(s) from the second position. In one aspect, the anchor body (40) is rotatable to effect said movement of the anchor lug(s).

Abstract: A cover for a concrete construction has a pair of anchor-engaging members extending from a disk-shaped body. The anchor-engaging members include fins which are configured to engage an anchor formed into a recess of a concrete block or wall to cover the recess. The cover is easily installed to the anchor by positioning the cover over the recess and urging the anchor-engaging member into engagement with the anchor.

Abstract: A volumetric modular building system comprising a reinforced concrete inverted “tee-beam” module. The module has a series of integral cross-walls which are spaced to coincide with the dimensions of the rooms and corridors constituting a section of a building, these rooms being formed by a matched pair of such modules acting in parallel, separated by, and adapted to support between them, a suspended concrete floor, external infill walls, internal partition walls, fixtures and services. The dimensional control of the modules is ensured by means of a removable structural steel framework gauge attached to and forming a part of the casting mold adjacent to the ends of the integral cross-walls. The legs of the gauge serve to locate and secure, during casting, top and bottom steel bearing-plates which are in turn separated, regulated and perforated by vertical steel tube tie-rod sleeves embedded locally near the ends of the concrete cross-walls.

Abstract: An erection anchor having a forged unitary body that includes a substantially cylindrical shank with one end embedable in a concrete panel and an opposite end extending into a recess in an end of the concrete panel. The forged unitary body also has a substantially cylindrical foot integrally formed with the one end of the shank and a shackle-engageable, planar head integrally formed with the opposite end of the shank. The planar head has first and second opposed substantially planar surfaces and a boss integrally formed with the planar head and extending outward from the first planar surface. The boss provides bearing surfaces that interlock the erection anchor with the concrete panel.

Abstract: An anchor for use in a concrete panel that has a shank with four sides forming a substantially square longitudinal cross-section. One end of the shank is connected to a foot and is embedable in the concrete panel. An opposite end of the shank is connected to a head and is locatable in a recess in the concrete panel.

Abstract: A lifting facility for encapsulation in a concrete wall includes a bowl element forming a cavity and having a rim occupying a rim plane. The bowl element has a side wall defining an elongated aperture, which includes a pair of spaced-apart openings connected by a slit. An articulated bar having a constant cross section has a loop portion within the cavity, and intermediate portions occupying the openings.

Abstract: A pulling iron facility for encapsulation in a concrete structure has an elongated strength member with an intermediate portion forming an upwardly extending loop. The strength member has opposed end portions extending laterally away from the loop. A sleeve at least in part encapsulates the strength remember, and includes a planar flange below at least a portion of the loop and defining an enclosed loop aperture. The sleeve includes a number of protrusions spaced apart from the flange.

Abstract: A precast concrete slab for forming a deck in a bridge superstructure has a chamfer on forward and trailing edges so that adjacent slabs can mate. The slab is reinforced with bars which protrude laterally from the slab on opposite sides and which, in use, extend over support beams. Selected bars are formed in a castellated shape of which inverted U-shaped portions extend above the surface of the precast concrete slab. Conveniently, the U-shaped portions anchor a concrete topping which is poured over the slabs at a bridge site and also provide locations for hooking a crane used to transport the slab at a site.

Abstract: An object handling device including a support body, and an elongate anchor body, having a proximal end, a distal end and a longitudinal dimension extending between the proximal and distal ends, the body is mounted at the inner proximal end thereof to the support body so as to project from the support body for insertion into an undercut cavity extending into an object from an edge or face of the object to be handled. At least one anchor lug at or adjacent to the outer distal end of the anchor body movable by rotation of the anchor body between a first position in which the anchor body is able to be inserted into or withdrawn from the cavity, and a second position in which at least one anchor lug engages a respective undercut shoulder portion in the cavity. Lever arm on the anchor body is engagable for moving the anchor body to move the at least one anchor lug between the first and second positions. A lift bar on the support body engagable by a crane to lift the object.

Abstract: A removable and reusable insert assembly for positioning and supporting a lifting system within a panel to be formed from cast concrete, the insert assembly having a left and right portion which are detachably removable from each other, and a lid that is secured over the insert. The lid protects an interior space of the insert assembly.

Abstract: An anchor positioning assembly for use in casting a concrete panel. The anchor positioning assembly includes a void former, a cooperating cover and an anchor. The assembly may further include an adaptor insert for receiving anchors of variable shapes and sizes. The void former includes a body having first and second portions pivotally connected by a pair of hinge webs. A peripheral lip extends outwardly from the periphery of the void former. A cover includes a top plate having a reentrant edge defining a locking groove for releasably engaging the peripheral lip of the void former, thereby providing a seal between the void former and the cover. The cover includes a plurality of mounting apertures to facilitate securing of the cover to concrete formwork.

Abstract: A removable and reusable insert assembly for positioning and supporting a lifting system within a panel to be formed from cast concrete, the insert assembly having a left and right portion which are detachably removable from each other, and a lid that is secured over the insert. The lid protects an interior space of the insert assembly.

Abstract: A transport anchor for embedding in prefabricated reinforced concrete parts has an anchor shaft having a first shaft portion and a second shaft portion. The first shaft portion can be anchored in the concrete and has a support with at least one spacer projection for maintaining a spacing to a formwork wall. The second shaft portion projects from the concrete and has an engagement head. A prism-shaped formed member has two shell parts and surrounds the engagement head. A removable recess member encloses the engagement head during casting of the concrete. The removable recess member has a hub portion to be seated on the prism-shaped formed member.

Abstract: A concrete embedding anchor includes. An anchor including an anchor body having a head at one end of the shank and a stopper at the other end, a fitment concentrically mounted to said head and having an external thread and easy breaking portion formed on the round bar portion thereof, and a hemispherical shell-shaped former fitted with the middle portion of said anchor shank. A retainer is secured to the concrete form in advance, said anchor fitment is inserted into and screwed up to said retainer, said anchor is combined with the concrete form, then concrete is poured, and said concrete form is taken away after the concrete has hardened.