1324results about "Mould fastening means" patented technology

A method of producing a masonry block including providing a mold assembly having a plurality of liner plates that together form a mold cavity having an open top and an open bottom, wherein at least one of the liner plates is moveable between a retracted position and a desired extend position relative to an interior of the mold cavity with a gear drive assembly. The at least one moveable liner plate is moved to the desired extended position, the bottom of the mold cavity is closed with a pallet, dry cast concrete is placed in the mold cavity via the open top, the top of the mold cavity is closed with a moveable head shoe assembly, and the dry cast concrete is compacted to form a pre-cured masonry block. The at least one moveable liner plate is moved to the retracted position, the pre-cured masonry block is expelled from the mold cavity and cured.

A precast concrete wall panel molding system for fabricating a wall shell and a plurality of ribs and beams. A precast concrete wall panel molding system with facilities for incorporating door and window frames. A ductile panel end connector for attaching panels one to another whether in parallel or angled as in inside or outside corners. A ductile panel end connector for attaching panels to columns. A wall anchor/shear plate with post-tensioning brace plate. A hybrid precast/cast-in-place special moment resisting shear wall/special moment resisting frame reinforced concrete building system for regions of potential seismic activity. A prescriptive method building system for composite structural building assemblies with conventional wood and light-gauge steel framing, structural steel, and other building code approved and tested building systems, building components, building panel systems, building roofing systems, modular and manufactured buildings, and building electrical, mechanical, and plumbing systems. A precast concrete wall panel system conforming to industry practices and standards as published by the Precast/Prestressed Concrete Institute, (PCI) in it's “PCI Design Handbook” (fifth edition, 1999), the American Concrete Institute “Building Code Requirements for Structural Concrete” (ACI 318-05), The “International Building Code 2006” and the “Uniform Building Code”.

This invention relates to a device for providing temporary support to a structure such as a formwork member. The invention includes a support device (1) for supporting a formwork member (16) adjacent to formwork surface. A securing means (12) is associated with the structure being operable for securing the support device to the formwork surface. A switching means (3) is provided for switching the securing means (12) between an operating condition whereby the securing means (12) secures the support device to the formwork surface, and a non operating condition whereby the securing means (12) is not securing the support device to the formwork surface. Advantageously, the support device (1) can be easily and predictably activated and de-activated.

Modular mold equipment for producing concrete culverts with tight tolerances. Modular mold equipment having a coupling plate is used to align and interconnect components of the mold. The components being aligned may have recesses for receiving the coupling plate. Modular mold equipment system with an extended size range to cover all standard concreted duct product sizes. Modular mold equipment having a pallet guide adjustment mechanism adapted for setting the pallet at a desired location in relation to a form. The desired location is based on a wall thickness of a concrete culvert to be produced. Modular mold equipment having a core that includes a core corner and another core component adapted to be coupled to the core corner, and locking apparatus adapted to lock the core corner to the other core component via a mechanism that extends outside the core.

A concrete wall panel for tilt-up construction provides polymeric peripheral elements defining panel and orifice edges and medial fastening strips extending in the panel between the peripheral elements, all of which remain as part of the finished panel to accept traditional self-penetrating nail, screw and staple fasteners historically used in wood construction. The peripheral elements are of solid configuration to provide a form for pouring plastic concrete that forms the panel embodying them. The fastening strips extend through the panel between opposed panel surfaces and are formed by two initially releasably interconnected elements defining voids therebetween to allow thickness adjustment and convenient placement and support of structural components within the panel. The fastening strips define spaced areas to receive traditional wood fasteners and may carry index strips on opposed exposed surfaces to visually indicate strip location and fastening areas. The peripheral elements allow joinder of adjacent panels with each other and both the peripheral elements and the fastening strips allow joinder of structural elements on one or both panel surfaces by self-penetrating fasteners of wood construction.

Provided is a function of minimizing a delay time of a packet call disconnect due to a handover between communication networks providing a communication service using different mobile communication technologies. To do this, even though a handover situation is generated during a packet service, the packet service is continuously provided by maintaining a current mode and performing a mode change after registration in a handover target network succeeds. Accordingly, since the packet service is not provided only while a packet call connecting process is performed, a delay time according to a packet call reconnection can be minimized.

The invention relates to the technical field of concrete molds, and discloses an adjustable concrete prefabricated part mold. The mold comprises a lower base; first positioning blocks are fixedly connected to the top of the lower base; telescopic rods are fixedly connected to the tops of the first positioning blocks; second positioning blocks are fixedly connected to the tops of the telescopic rods; compression springs are movably arranged on the surfaces of the telescopic rods in a sleeving mode; the bottoms of the compression springs are fixedly connected to the tops of the first positioning blocks; the tops of the compression springs are fixedly connected to the bottoms of the second positioning blocks; and the tops of the second positioning blocks are fixedly connected to the bottom of an upper base. According to the adjustable concrete prefabricated part mold, the size of first mold bodies and the size of second mold bodies can be freely changed so as to form a large or small concrete mold so that the diversity of the mold can be realized, the concrete mold can produce prefabricated parts with different specifications, and therefore the manpower and material resources can be saved, and the waste of the resources can be avoided.

A side wall system for a concrete casting mould, including a side part (2, 3) which is removably attachable to a casting bed (1) by means of one or several magnets (7). The body (6) of the magnet part that carries the magnet (7) includes a pivoting shaft (10) about which the magnet part (6, 7) can be pivoted into a lower position wherein the magnet (7) is fastened to the casting bed (1) and into an upper position wherein the magnet is spaced from the casting bed. The side part (2, 3) includes a holder (5) on which the pivoting shaft (10) of the magnet part can be hung so that it can be pivoted between its lower and upper positions. The holder (5) has a mounting face to which the upper surface of the magnet (7) can be fastened by means of the magnetic force when the magnet is pivoted into its upper position about its pivoting shaft.

The present invention includes a formwork structure located on supporting surface, the structure having a side form perimeter including side form members, the perimeter defining a curable non-solid material retaining area; the formwork including side form support members that support the side form members, at least one of the side form support members being held in a fixed position relative to the supporting surface by a surface-to-member releasable securing device fixed to the supporting surface and which engages the side form support member, characterised in that the secured side form support member is adapted to permit another side form support member to be secured thereto by one or more releasable inter-member securing devices, which are separate to the surface-to-member securing device.

Formwork system for the process of casting prefabricated wall and slab panels that is flexible in width and height is provided. This formwork system includes two types of retractable bracing structures that are located on the sides and ends of mould structure. The height and width of panels can be varied by moving the linear retractable bracing structure, while the lever retractable bracing structure holds the side form firmly by clamping down the side form to the platform of the support structure. The thickness of the panel to be cast can be varied by using different modules of side form that are designed to produce a series of modules of various heights. Various patterns on the wall can be designed by incorporating specially designed channels in the mould.

A method and apparatus for dry casting concrete wall blocks having a decorative face. The blocks are cast in a mold including a form, a flexible insert and a steel pallet. Magnets hold the insert on the pallet while permitting the insert to slide on the pallet into alignment with the form when the form and pallet are moved together. The insert creates a decorative face on one or more simultaneously cast blocks. After the blocks are cast, the uncured blocks and the insert are moved together from the form and transferred to a curing area. After the blocks cure, they are separated from the insert. Preferably, additional concrete mix is provided adjacent the insert prior to compacting to avoid voids in the block face. Optionally, the shoe which compacts the concrete mix may be shaped to impart a lip adjacent a back edge of the block.

A form for a concrete slab which consists of a series of similarly shaped steel plates that are held in predetermined spaced relationship by a series of special rebars, (special nuts are provided) before the slab is poured. The slab is criss-crossed by rebars which extend through the form to accurately locate the remaining steel plates as well as to prevent excessive cracking of the slab.

There is described a heat shield element comprising a hot side which is turned towards the hot medium, a cold side which is turned away from the hot medium, peripheral sides which connect the hot side to the cold side and a material volume which is defined by the hot side, the cold side and the peripheral sides, wherein the material volume comprises at least two material areas which are made of different materials. The materials are different from each other at least in respect of their resistance and/or thermal expansion coefficient.

The invention discloses a modular mold for prefabricated upright post pouring. The modular mold aims to solve the technical problem that in the prior art, a mold for machining prefabricated upright posts needs to be customized according to the size of upright posts, and a number of molds is discarded after the upright posts are subjected to one-time grouting machining. The modular mold comprises abottom mold and a side mold detachably connected with the bottom mold, wherein the side mold of the modular structure is formed by splicing side mold sections with unequal lengths, the inner wall surfaces of the side mold sections are provided with rain grooves in the thickness direction of the side mold sections, the side mold sections comprise wide mold plates and narrow mold plates, the side mold sections are formed by staggered splicing of the wide mold plates and the narrow mold plates, a positioning assembly for positioning a reinforcement skeleton is arranged on the bottom mold connected with one end surface of the side mold, a complete machining mold is formed after the side mold and the bottom mold are installed, a grouting groove along the length direction of the machining moldis formed in the middle of the machining mold, and the reinforcement skeleton is located in the grouting groove and is tightly attached to the inner wall surface of the side mold. According to the modular mold for prefabricated upright post pouring, a group of modular side mold can be used for machining the upright posts with different sizes, so that the production cost is reduced.

The invention provides a pipe gallery box culvert pouring mould. A guide rail assembly comprises cross rails and longitudinal rails; four outer mould plates of a mould assembly are respectively arranged on the cross rails and the longitudinal rails; screw rod supporting seats are fixed on the outer side of the every outer mould plate; four inner mould plates are respectively arranged on the cross rails and the longitudinal rails; four inner mould columns and outer walls of the four inner mould plates accord with an inner wall of the box culvert; lower mould plates are fixedly connected to the cross rails and the longitudinal rails; supporting frames of every outer demoulding assembly are fixed on the outer side of the mould assembly; screw nuts are fixed on the supporting frames and handles are fixed on the outer ends of screw rods; the screw rods are matched with the screw rod supporting seats of the outer module plates; double-thread screws of every inner demoulding assembly are respectively matched with two connecting sleeves through threads; the two connecting sleeves are respectively connected with two inner mould plates. An outer side surface of the box culvert is formed by the outer mould plates; an inner side surface of the box culvert is formed by the inner mould columns and the inner mould plates; a lower end surface of the box culvert is formed by lower mould plates; assembling reinforcements are positioned in the mould and concrete grout is poured into the mould, so that the pipe gallery box culvert is obtained; the mould can be used repeatedly.

A method of producing a concrete block having a front face, a rear face, an upper face, a lower face, and a pair of opposed side faces. The method includes providing a mold assembly having a plurality of liner plates that together form a mold cavity having an open top and an open bottom, wherein at least a first liner plate is moveable between a retracted position and an extended position with a gear drive assembly, and wherein the first liner plate is angled such that when the first liner plate is in the extended position the bottom of the mold cavity is narrower than the top by a predetermined distance. The first liner plate is moved to the extended position, a pallet is positioned below the mold to close the bottom of the mold cavity, dry cast concrete is placed in the mold cavity via the open top, a shoe assembly is positioned into the mold cavity via the open top, and the dry cast concrete is compacted to form a pre-cured concrete block with the rear face resting on the pallet, the front face contacting the shoe assembly, and one side face of the pair of opposed side faces contacting the first liner plate. The first liner plate is moved to the retracted position such that the bottom of the mold cavity is narrower than the top by the predetermined distance and at least as wide as the top when first liner plate is in the extended position, the pre-cured concrete block is expelled from the mold cavity and cured.

An apparatus for manufacturing lightweight concrete composite blocks includes a form, a station conveyor, a form-loading station, a form assembly station, a curing oven, and a block removal station. The station conveyor conveys the form or a multitude of forms around the apparatus in a continuous loop to produce a desired rate of production of lightweight concrete composite blocks. The form-loading station fills the form with a lightweight concrete composite. The form assembly station assembles the form to seal the composite within the form. The curing oven cures the lightweight concrete composite into a lightweight concrete composite block. The block removal station removes the lightweight concrete composite block from the form prior to the return of the form to the form-loading station for re-use.

The invention provides a form member for use in forming concrete panels comprising a pair of upright walls connected by a plurality of ribs. Each of the ribs includes an aperture for allowing a fastener through. The fastener passes through each of the ribs into a casting floor to fix the form member to the floor. A plurality of form members can be arranged to define enclosures, concrete is then poured into the enclosures to the level of the upright walls, smoothed and allowed to cure to form concrete panels. The form members of the present invention allow a number of panels to be formed at the same time, with some form members common to more than one concrete panel. The invention provides easy of use and savings in space, time and labour.

An apparatus for manufacturing lightweight concrete composite blocks includes a form, a station conveyor, a form-loading station, a form assembly station, a curing oven, and a block removal station. The station conveyor conveys the form or a multitude of forms around the apparatus in a continuous loop to produce a desired rate of production of lightweight concrete composite blocks. The form-loading station fills the form with a lightweight concrete composite. The form assembly station assembles the form to seal the composite within the form. The curing oven cures the lightweight concrete composite into a lightweight concrete composite block. The block removal station removes the lightweight concrete composite block from the form prior to the return of the form to the form-loading station for re-use.

A vibration system for concrete pipe making machines using the dry cast method and which employ adjustable molds comprised of corner panels joined to intermediate panels. Two coupled vertically spaced-apart vibrators are mounted in two opposite corner panels of the mold core. The vibrators are mounted on shelves welded to the interior of the walls that form the mold surface. The shelves are also welded to vertical end walls that extend inwardly to form the box-like corner panel. The corner panels and intermediate panels are secured together by removable fasteners that join the vertical end walls of the corner panels to the corresponding vertical end walls of the side panels. The joined corner panels and side panels provide a rigid core structure similar to a solid core and allow the entire core to become the vibration structure.