Means To Raise Or Lower Mold Patents (Class 425/454)
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Patent number: 5127816Abstract: A molding machine which includes a rotary-table system having at least two tables supported on the frame, which system has a lifting device in the area of each table, and a compressing device constructed on the frame.Type: GrantFiled: July 6, 1990Date of Patent: July 7, 1992Assignee: Heinrich Wagner Sinto Maschinenfabrik GmbHInventor: Herbert Grolla
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Patent number: 5120211Abstract: A slip casting device has a molding station for molding a casting with a mold, and a releasing station separate from the molding station, for separating the casting from mold members of the mold which carry the casting. The device may include a pair of vertically spaced molds and a common clamping cylinder interposed between the pair of molds.Type: GrantFiled: August 6, 1990Date of Patent: June 9, 1992Assignee: Toto Ltd.Inventors: Haruyuki Ito, Masanobu Hisaeda, Toshiaki Sasaki, Yasuo Hirakawa, Mitsuru Ida
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Patent number: 5044919Abstract: An apparatus for molding a product such as an automotive instrument panel of synthetic resin has a first station including a mechanism for opening and closing a mold assembly, a second station including a mechanism for pouring a resin solution into the mold assembly which is closed, and a third station for hardening the poured resin solution in the mold assembly. A feed mechanism interconnects the first, second, and third stations in a looped configuration for circulating at least three mold assemblies through the first, second, and third stations. The mold assembly includes a first mold die for placing therein a covering sheet of a predetermined shape, a second mold die combinable with the first mold die to define a mold cavity therebetween, and a mechanism for pouring a resin foam solution into the mold cavity to form a molding integral with the covering sheet.Type: GrantFiled: December 5, 1989Date of Patent: September 3, 1991Assignee: Honda Giken Kogyo Kabushiki KaishaInventors: Nozomu Hama, Takaaki Sato, Akihiko Koshiro, Masao Tegawa, Tomio Iino, Seiji Yanagisawa, Nobuo Kikuchi, Kazuo Migishima, Kazumi Ishida
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Patent number: 5040968Abstract: A device for manufacturing concrete parts, particularly concrete pipes, and based on the principle of sinking mold whereby a molding bottom ring together with a jacket are continuously lowered relative to a stationary mold core while concrete mixture is poured from above and distributed into the emerging molding space by a radial pressing device mounted on the top end of the mold core. Simultaneously with the lowering of the mold jacket and the molding bottom ring a supply device for delivering the concrete material is also lowered such as to keep a constant distance from the open top end of the mold jacekt. The radial pressing device is designed to compact the incoming concrete material in radial direction without imparting any torque thereto. In this manner any stress in the finished part, particularly between the concrete and reinforcing wire mesh is effectively avoided.Type: GrantFiled: February 24, 1989Date of Patent: August 20, 1991Assignee: Georg Prinzing GmbH & Co. KGInventor: Richard Kraiss
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Patent number: 5002479Abstract: Apparatus for vertically adjusting the position of a lower mold relative to an upper mold to control the shut height or spacing between the upper and lower molds when they are moved between vertically spaced apart, open positions, and closed positions engaging opposite sides of a thermoplastic sheet of material to form an object therein.A plurality of toggle links are pivotally coupled to each other and to the mold and frame for determining the final position of the mold and the closed position.The toggle link mechanism for the lower mold is mounted on the frame via a horizontally adjustable wedge mechanism which vertically adjusts another cooperating wedge mounting one pivotal end of the lower toggle links.Type: GrantFiled: May 30, 1989Date of Patent: March 26, 1991Assignee: John Brown Inc.Inventors: Gaylord W. Brown, Timothy Dinnan
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Patent number: 4964793Abstract: A transportation system including a solar energy collecting monorail structure formed with a photovoltaic surface layer having a solar energy convertor for converting the collected solar energy to electrical energy. A power distribution device for distributing stored energy to transit vehicles being propelled along the monorail structure or distributing excess energy to a remote power utility source. The monorail structure includes a device for propelling a transit vehicle according to magnetic principals associated with transverse flux motors. The system also includes a computer controlled, elevation compensating monorail structure extrusion machine comprising a fabrication chamber which continuously fabricates the monorail structure along a monorail construction right-of-way.Type: GrantFiled: December 7, 1989Date of Patent: October 23, 1990Inventor: Mark J. Antosh
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Patent number: 4946638Abstract: A slush molding method including the steps of preparing a mold with a groove provided on the entire periphery of the opening portion thereof, engaging a heating medium guard frame with the groove, charging a resin material into the mold, heating the mold into the heating medium which is contained in a fluidized-bed oven and fluidized by air so as to melt the resin and cause it to adhere to the molding surface and removing the heating medium guard frame to discharge the surplus resin. An apparatus used for the slush molding method is also included.Type: GrantFiled: March 25, 1988Date of Patent: August 7, 1990Assignee: Toyota Jidosha Kabushiki KaishaInventor: Shigeki Takamatsu
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Patent number: 4943223Abstract: Apparatus for producing articles of polyurethane or the like material including a mold of the article shape and apparatus for centrifugally discharging the polyurethane material used into the mold such that polyurethane molecules will strike the wall of the mold and break so that the article produced has a smooth, non-porous outer skin and the interior of the article has a foamed interior.Type: GrantFiled: December 14, 1987Date of Patent: July 24, 1990Inventor: Vincent E. Panaroni
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Patent number: 4931006Abstract: In an installation for producing packaging containers such as tubes, from prefabricated tube bodies and end portions of thermoplastic material, which are connected to the tube bodies, a plurality of moulds which are moved on a circulatory path each include an upwardly directed female mould portion and a mandrel which is pivotable about a horizontal axis between a downwardly directed working position and a loading position. A tube body loading station, a material feed station having a nozzle, and a container unloading station are arranged at spacings from each other along the circulatory path, while the female mould portion and the mandrel of each mould are displaced relative to each other on a common working axis. In a plurality of working units including support frames which are moved on the circulatory path, each support frame supports at least the female mould portion and the mandrel of a mould and the actuating mechanism thereof.Type: GrantFiled: May 11, 1988Date of Patent: June 5, 1990Assignee: KMK Karl Maegerle Lizenz AGInventors: Bernhard Schwyn, Heinrich Ueberegger
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Patent number: 4927347Abstract: A compression mold for manufacture of a fiber-reinforced composite vehicle wheel that has a circumferential array of radially reciprocable rim mold sections, a lower disc mold section affixed to a mold base, and an upper disc mold section axially reciprocable with respect to the lower disc mold section from an upper or retracted position to a lower or closed position in which opposing surfaces of the various mold sections form a wheel mold cavity. The radially reciprocable rim mold sections are slidably mounted on a retainer which is carried by springs above the mold base surrounding the lower disc mold section and are engaged by the upper disc mold section during downward motion of the latter so that the upper disc mold section and the rim mold sections move conjointly with respect to the lower disc mold section toward the closed cavity-defining position of all mold sections.Type: GrantFiled: October 11, 1988Date of Patent: May 22, 1990Assignee: Motor Wheel CorporationInventors: John H. Golata, James A. Woelfel
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Patent number: 4904177Abstract: A vertical press for the moulding of plastics materials, particularly thermosetting plastics materials includes a fixed plate and a movable plate slidable on guide columns, a first fluid-operated actuator for moving the movable plate along the guide columns, fluid-operated clamps associated with the movable plate for clamping the movable plate relative to the guide columns, and a second fluid-operated actuator acting on the guide columns to move the columns vertically relative to the fixed plate.Type: GrantFiled: November 18, 1988Date of Patent: February 27, 1990Assignee: Fiat Auto S.p.A.Inventor: Franco Chiesi
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Patent number: 4822268Abstract: The invention relates of a conveying and treatment apparatus for double moulds for making hollow bodies of a castable, solidifying substance, such as chocolate mass. The double moulds consist of two plate-shaped mould halves which have corresponding mould cavities and are laid one above the other to close the cavities. The apparatus comprises a conveying path via which the double moulds filled with the mass can be fed to a transfer device which takes over the double moulds after the fashion of continuous lift and supplies the moulds to an endless conveyor. During conveying in the transfer device (7), the double moulds are conveyed in parallel and synchronously with supporting and retaining elements of the endless conveyor, being transferred in synchronism by means of a pushing device from the transfer device to the chain conveyor.Type: GrantFiled: February 12, 1988Date of Patent: April 18, 1989Assignee: Gebr. Bindler GmbH & Co, KGInventors: Uwe Bindler, Theo Schurholz
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Patent number: 4786444Abstract: An apparatus and method is described which is useful in manufacturing molded optical devices. The apparatus and method provide automatic alignment of the mold elements so that cylinder and prism free lenses are provided.Type: GrantFiled: June 1, 1987Date of Patent: November 22, 1988Assignee: Minnesota Mining and Manufacturing CompanyInventor: Kirk K. S. Hwang
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Patent number: 4726753Abstract: In an apparatus for producing moulded articles, particularly of plastic, by means of a mould formed from individual mould parts (3, 4, 5) optionally fixed to mounting surfaces, support parts, etc and which, following a closed position, move during the moulding process into an open position by a stroke c in a direction x a working device, e.g. a demoulding, charging, cleaning and/or similar device is introduced into the gap (6, 7) formed between the faces of the mould parts. With at least two mould parts (3, 4 and/or 5) is associated in each case a slide (I, II and/or III) movable by a stroke d in a y-direction for introducing the working devices. As a function of the movement of at least one mould part (3, 4 and/or 5), or its mounting surface (1, 2), support part (18, 19), etc, the slide (I, II and/or III) perform the stroke d in the y-direction.Type: GrantFiled: August 18, 1986Date of Patent: February 23, 1988Assignee: Fahr-Bucher GmbHInventor: Karl-J. Gaigl
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Patent number: 4725214Abstract: Apparatus for forming a constructional block in which a lower die is filled with a given and at least substantially excess amount of material after substantially closing the lower die with an upper die for forming a mold by drawing the dies together, the material is highly compressed while, simultaneously with drawing them together under the action of a means for controlling and regulating its passage, in a first stage, the excess material is allowed to escape partly outwardly of the mold and, in a second stage, substantially before obtaining the desired dimension between the two faces of the block through the relative drawing together of the dies, the passage of the material escaping outwardly of the mold is stopped.Type: GrantFiled: March 21, 1986Date of Patent: February 16, 1988Inventors: Giovanni Piazza, Mario Piazza
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Patent number: 4720367Abstract: A method of operating a vacuum-forming machine and the machine which operates by this method, in which once the mold halves are closed on the foil webs for vacuum drawing and fusion of the vacuum drawn container halves come together to produce a hollow article, the mold halves move at the velocity of the web to a lower position spaced from the upper position by a distance sufficient to permit cooling of the molded articles. A spring or other force-storing element is stressed during this movement so that when the mold opens at the lower position, it is driven upwardly at a substantially higher velocity to return to the starting position.Type: GrantFiled: April 15, 1986Date of Patent: January 19, 1988Inventor: Bernd Schenk
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Patent number: 4702688Abstract: A mold-closing and holding mechanism, especially for a deep drawing apparatus making hollow articles from a thermoplastic web provides force-storing elements between the mold halves and the drive so that when the drive which can use a check motor is cut off, the force-storing elements can continue to exert a uniform closure force at least upon the regions at which a weld is to be formed from the shaped parts.Type: GrantFiled: April 15, 1986Date of Patent: October 27, 1987Inventor: Bernd Schenk
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Patent number: 4699584Abstract: This invention discloses a die opening device for a molding machine. One upper die segment is attached to the underside of an upper die plate tiltable relative to the surface of a floor on which the molding machine is installed and, at the same time, one lower die segment is opposed to the upper die segment and attached to a lower die plate adapted to be reciprocated vertically in a substantially perpendicular direction by a hydraulic cylinder. The upper die plate and the lower die plate are cooperatively connected to each other with connection means in such a manner that a descent of the lower die plate will tilt the upper die plate and raise the worker side thereof. Owing to the inclination thus produced, the molding groove in the upper die segment is opposed to the worker.Type: GrantFiled: September 19, 1986Date of Patent: October 13, 1987Assignee: Toyoda Gosei Co., Ltd.Inventors: Toshinori Kurita, Hidetoshi Nagamatsu
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Patent number: 4515552Abstract: A release and carry-out apparatus is disclosed for removing a mold from a molding such as a concrete panel, and carrying out the molding to a predetermined position. This release and carry-out apparatus comprises: a base frame; an erectable frame erectably supported by this base frame; and a carrier for receiving only the molding disposed on a mold bed firmly, which bed is secured to this erectable frame when the erectable frame is erect, and carrying the molding to the predetermined position.Type: GrantFiled: October 20, 1981Date of Patent: May 7, 1985Assignee: Misawa Home Co., Ltd.Inventors: Takao Kataishi, Iwazou Seo
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Patent number: 4472130Abstract: The invention provides devices for raising a table for casting a concrete panel so as to be able to remove it from the mold. Such a raising device is provided with a funicular cable passing over an assembly of pulleys. Two carriages carried by two strands of this funicular cable travel perpendicularly to the pivoting axis of the table and with an identical movement. Two links are pivotably mounted on these carriages and on the lower face of the table so as to synchronize the raising movement of said table.Type: GrantFiled: July 8, 1982Date of Patent: September 18, 1984Assignee: Societe d'Etudes Techniques et d'Entreprises Generales-SodetegInventors: Philippe Demonsablon, Jean Millot, Andre Corneloup
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Patent number: 4394116Abstract: A plastic resin blow molding machine to form bottles from a thermoplastic resin forms a tubular parison of plastic resin by extruding the molded plastic from the circular orifice formed between a vertically aligned mandrel and a forming die. The mandrel is vertically adjusted relative to the forming die by an adjustment nut having screw threads which mate with the screw threads of the mandrel. The adjustment nut is rotatably mounted on a plate and is fixed to a ratchet ring having evenly spaced indentations, the ratchet ring being turnable by a ratchet wrench having a spring-loaded pawl.Type: GrantFiled: December 7, 1981Date of Patent: July 19, 1983Inventors: Ernest O. Kuenzig, Frank L. Pennino
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Patent number: 4337026Abstract: A mold-handling apparatus in which a pair of mold carriers can be locked together for the molding process but, upon separation, each tilts through 45.degree. to afford improved access to the mold halves following a molding operation or before a molding operation. According to the invention, the upper mold carrier is swung about a fixed axis by a fluid-operated cylinder while another fluid-operated cylinder shifts a slider vertically to lower the pivot of the lower mold carrier and enable the latter to engage abutments which tilt the lower carrier.Type: GrantFiled: October 1, 1980Date of Patent: June 29, 1982Assignee: Krauss-Maffei AktiengesellschaftInventors: Peter Taubenmann, Karl-Ludwig Korzeczek
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Patent number: 4332540Abstract: A press for moulding concrete products has a frame, a horizontal vibrating table, a board and a mould movable vertically between a demoulding upper position and a moulding lower position. A displacing device moves and selectively rigidly connects the mould to the table during vibration of concrete in the mould in a manner whereby the mould, the board and the table form a rigid unit subjected to vibration. The connecting device includes fixing legs attached to the mould and pairs of grippers for symmetrically selectively clamping the lower ends of the fixing legs.Type: GrantFiled: July 1, 1980Date of Patent: June 1, 1982Assignee: Societe D'Exploitation des Etablissements MinatoInventor: Yves H. Van de Caveye
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Patent number: 4318684Abstract: In the method and installation of this invention a piece of soft cheese formed in a mold constituted by a vertical cylinder open at both ends and resting on a plate with one of the open ends is removed from the mold cylinder by simultaneously lifting the mold cylinder and the piece of cheese to displace them away from the plate. The piece of cheese is displaced by a suction cup mounted above the other open end of the mold cylinder and the mold cylinder is displaced by a vertically movable clamp holding the mold cylinder tightly. The plate is then substituted by a support for the piece of cheese and the suction cup is vertically displaced relative to the clamp so as to extract the piece of cheese through the open mold cylinder end and to place it on the support.Type: GrantFiled: January 29, 1981Date of Patent: March 9, 1982Assignee: Cartier S.A.Inventor: Michel Boucher
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Patent number: 4191523Abstract: An apparatus for molding shaped bodies from foamable plastics such as foamable polyurethane resin material comprises a two-piece mold 20, 21 fastened to two clamping plates 17, 18 of a mold holder 11, all of which can revolve around parallel axes 34, 35, 36. The upper plate 18 can move toward the fixed lower plate 17 and back again. The plates are locked and urged together during the molding process by pairs of hydraulic cylinders 28, 29 and 30, 31 mounted on opposite sides of the mold halves 20, 21.Type: GrantFiled: June 16, 1978Date of Patent: March 4, 1980Assignee: Herbert Kannegiesser KommanditgesellschaftInventors: Jean-Pierre Niederst, Karl Holzinger
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Patent number: 4181485Abstract: Method and apparatus for the manufacture of pre-cast plate-like concrete elements on a building site. A horizontal casting table has a large area mold into which the concrete is poured. After a short setting time to allow the concrete to harden, the table is raised to a vertical position and the partially hardened concrete element is drawn off of the mold. The process of moving the table to a vertical condition is accompanied by a lateral movement such that the latest element is stacked at the head of a line of previously cast elements. The elements are allowed to stand undisturbed until hardening is complete. Casting is done in a movable shed which shelters the partially hardened elements from the weather. Ribbed elements may be cast using a further mold element raised and lowered from the ceiling of the shed.Type: GrantFiled: November 14, 1977Date of Patent: January 1, 1980Inventor: Horst Schramm
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Patent number: 4149697Abstract: An outfit for manufacturing concrete units includes one frame, which can move along a rail-track, and two detachable forms-tilters on it. The length of the unit made in the forms can be varied. Each form has also detachable equipment (edges, dies, and dividing bars). Before stripping the units, the side edges of the form are thrown aside and the bottom edge is taken away. A detachable hinged clip which is fixed on the bottom side is moved into a working position. Then the form is turned over 90.degree., and the outfit moves to a rack. The top edge is thrown back, the clip is released, and the unit falls down on cushions. The outfit operates in the same manner on the other side of the rail-track. It is possible to manufacture in one form two or more units at the same time with corresponding increase in quantity of clips on the bottom side of the form.Type: GrantFiled: February 7, 1978Date of Patent: April 17, 1979Inventor: Mikhail Linetsky
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Patent number: 4105382Abstract: An apparatus for continuously producing finished prestressed concrete wires along a prestressing bed with a plurality of prestressing members which extend along the prestressing bed and which are arranged to pass through the concrete members when formed. The apparatus includes a scaffold which spans the prestressing bed in a gantry-like fashion and is supported for movement in a direction parallel to the bed. The scaffold extends over at least two adjacent stations along the prestressing bed for producing the finished prestressed concrete members. A number of vertically movable lower form members are carried on the scaffold for movement to a lowered position on the prestressing bed for receiving fresh concrete to form the concrete members. After the concrete members are formed and bonded the lower form member may be raised away from the finished concrete member.Type: GrantFiled: March 22, 1977Date of Patent: August 8, 1978Assignee: Dyckerhoff & Widmann AktiengesellschaftInventors: Peter Auer, Fritz Kluge, Helmut Lieske, Horst Wutzler
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Patent number: 4102624Abstract: An apparatus and process is disclosed for rotational molding. Rotational molding is a technique for the fabrication of parts from powdered thermoplastic material in which the thermoplastic material is placed within a hollow mold and the mold is rotated in a heated environment until the thermoplastic material fuses and coats the entire interior surface of the mold. Included in the apparatus is a holding mechanism for the mold and a power mechanism to provide the required rotational motion to the mold. The power mechanism provides for simultaneous rotation of the mold about two orthogonal axes and is displaced spatially from the holding mechanism. The holding mechanism is attached to a translating mechanism which positions the molds both internal to and external to a heating chamber such as an oven while keeping the drive mechanism external of the oven at all times.Type: GrantFiled: October 14, 1976Date of Patent: July 25, 1978Assignee: Windsurfing International, Inc.Inventor: Peter J. Corona
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Patent number: 4080129Abstract: For casting large concrete articles, a wheel-mounted main frame supports a mould assembly which can be rotated about a horizontal axis, and also raised and lowered. This assembly has two main mould sections oppositely arranged so that when one faces upwards the other faces downwards. A removable mould section fitted to each main mould section forms a complete mould capable, when uppermost, of receiving concrete to be cast. The mould assembly may then be inverted and lowered to a support, and the removable mould section disconnected to serve as a pallet for the cast article. The mould assembly may be raised, concrete may be cast in the other mould, which is uppermost, and the main frame may be moved clear of the deposited cast article.Type: GrantFiled: June 1, 1976Date of Patent: March 21, 1978Inventor: Philip Andrew Little
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Patent number: 4077757Abstract: Apparatus for horizontally casting a panel, preferably a non-composite insulated panel of reinforced concrete of substantial area and thickness in a heated mold. The mold is part of a rotating mechanism and lift frame for rotating and vertically stacking the panel when the panel is partially cured.Reinforcing steel is put into a heated mold. A layer of concrete is poured into the mold, forced into close and intimate contact with the mold and through the reinforcing steel by means of a traveling auger, striker plate and vibrating screed; insulation board and shear connectors are placed in the mold, further reinforcing steel is then placed in the mold, and a second layer of concrete is poured into the mold and forced through the reinforcing steel, by means of the traveling auger, striking plate and vibrating screed, which at the same time as they force the concrete through the steel, produce a smooth finish on the non-mold contacting surface of the concrete panel.Type: GrantFiled: March 28, 1977Date of Patent: March 7, 1978Inventor: James W. DeCoster
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Patent number: 4063859Abstract: Fluid concrete is provided to apparatus which shapes the concrete into a desired form and may stack the finished products for removal by an operator. A concrete receiving portion of the apparatus holds the fluid concrete and discharges selected amounts thereof into a vertically open mold. The mold and the fluid concrete therein are supported during filling by a forming table. A compaction member is inserted into the mold to distribute and compact the fluid concrete therein, after which the mold may be removed from the table and held for vertical movememt by a mold carrier. Withdrawable support plates at the bottom of the mold support the shaped product therein after the mold has been removed from the forming table, with these support plates being selectively withdrawn to allow release of the shaped product from the bottom of the mold. A shaped product stacker is provided beneath the mold in position to receive shaped products released therefrom, and to stack a plurality of such products.Type: GrantFiled: July 1, 1976Date of Patent: December 20, 1977Assignee: Gary L. HalleInventors: Gary L. Halle, Albert Van Lith
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Patent number: 4043723Abstract: A molding machine adapted to selectively mold conduits having rows of ducts in one or more tiers. Means are provided, in a carriage section, to selectively connect and disconnect any of a plurality of mandrels adapted to reciprocate with the carriage to vary the number of tiers to be molded, while a platform in a mold receiving section can be selectively raised to a number of positions to cooperate with the selected mandrels.Type: GrantFiled: April 2, 1976Date of Patent: August 23, 1977Inventor: Stewart E. Slaton
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Patent number: 4029746Abstract: Apparatus assembly including continuous particle forming means, such as pelletizer, mounted on mobile platform, adapted to deposit compression formed particles as they are formed substantially throughout a large curing area to permit at least partial hardening of the particles prior to further handling. Preferably, rail mounted longitudinal and transverse supports permit movement of the pellitizer both transversely and longitudinally through predetermined paths. Most preferably, pelletizer is also mounted with elevation means to permit raising and lowering and thereby to control the drop of freshly formed particles and to permit their disposition with minimum drop as inventory of formed particles accumulates.Type: GrantFiled: November 17, 1975Date of Patent: June 14, 1977Assignee: IU Conversion Systems, Inc.Inventors: Steven I. Taub, Frederic J. Osterman
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Patent number: 4017230Abstract: A cementitious product slab useful in construction is made by:A. preparing a flowable aqueous cemetitious slurry,B. forming a selected quantity of the slurry into slab shape, said forming step including vibrating said slurry quantity to aid slab shape formation,C. pressurizing the formed slab to squeeze water therefrom, andD. curing the resultant slab.Type: GrantFiled: July 25, 1975Date of Patent: April 12, 1977Assignee: California Cement Shake Co., Inc.Inventor: Gus R. Jakel
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Patent number: 4008990Abstract: The present invention relates to a pivoting mechanism for a mold in a system for producing foamed materials, especially polyurethane foams, wherein the molds to be filled by the foam travel continuously around an endless conveyor track and wherein each mold carriage includes a closing portion (mold holder) embracing said mold and comprising an upper closing portion and a lower closing portion, whereby each mold upon being filled is closed by bringing together said upper and lower closing portions, whereupon said mold is pivoted into an inclined position together with said closing portion in order to allow venting of the mold to occur while the mold assembly continues to advance along the conveyor track.Type: GrantFiled: March 26, 1975Date of Patent: February 22, 1977Assignee: The Upjohn CompanyInventors: Armin Alexander Hiemer, Siegfried Hermann Jager
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Patent number: 4008034Abstract: In an automatic water struck brick molding machine including a mold for molding wet clay into bricks, releasing the suction between the wet clay in the mold and the overlying slide board by pushing the slide board across the mold for a limited distance and then forcing the slide board upwardly from said mold and immediately thereafter, raising said mold and slide board vertically far enough to leave a group of wet bricks resting on an underlying pallet ready to go to the drying area.Type: GrantFiled: October 1, 1975Date of Patent: February 15, 1977Inventor: Joseph F. Kane
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Patent number: 4008026Abstract: A mold and associated apparatus for the vertical forming of concrete fence posts. The mold has integral sides which are not opened for removal of the finished post. The apparatus provides a track and mold support means for a continuous casting operation.Type: GrantFiled: April 25, 1975Date of Patent: February 15, 1977Inventor: William J. Engstrom
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Patent number: 4005963Abstract: An apparatus for continuously producing concrete elements of varied cross-sections which comprises a mold formed from a cover and a shell supported on a tiltable frame. The frame is capable of orienting the mold vertically to allow the elements to be cast and then rotating to the horizontal to separate the shell from the casting and the cover. The apparatus further contains a heating tunnel to harden the casting and a carriage with a pushing member for separating the covers from the finished elements. A guide rail is provided to reinsert the covers into the mold.Type: GrantFiled: October 18, 1974Date of Patent: February 1, 1977Inventor: Mircea Borcoman
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Patent number: 3969061Abstract: A concrete press has an upper movable platen and a lower fixed platen. Hydraulic cylinders are interposed between the upper platen and frames of the press which extend horizontally over this platen. A mold shaped as a concrete building panel is filled with high water-to-cement ratio concrete and is introduced between the platens for pressing. The mold has collapsible interleaving sides. Lateral hydrostatic pressure on the short ends of the molds is resisted with hydraulic rams. Hydrostatic pressure against the long sides of the molds is resisted by hydraulically positioned wedges which are interposed between the mold sides and the frames which contain the platens and cylinders. Means which are responsive to the cylinder positions are provided for maintaining all parts of the movable platen level during the compacting process. The mold sections are prevented from collapsing inadvertently with magnet means.Type: GrantFiled: October 29, 1973Date of Patent: July 13, 1976Assignee: Pennsylvania Engineering CorporationInventors: Howard M. Fisher, Bernd G. Albers
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Patent number: 3966375Abstract: This invention relates to an apparatus for manufacturing concrete poles which has a train system running on a rail and stays on a required place to manufacture concrete poles, and is characterized in comprising at least a wire storage device, a caging stand, a mold traverser, a spinning machine and a device for carrying materials or products.Type: GrantFiled: July 30, 1974Date of Patent: June 29, 1976Assignee: Nippon Concrete Industries, Co., Ltd.Inventors: Yoshikiyo Fukushima, Kenzo Momota, Hideaki Shirahata, Noriyuki Sakanai
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Patent number: 3963395Abstract: An improved mass production assembly line is provided for fabricating building walls and similar structural members in molds by applying a hardenable polyester film to the cavity surfaces of mold halves, joining the mold halves and then introducing a mixture into the mold cavity to form a polyurethane foam.First and second rectangular fields of rollers, each mounted on a pedestal, are adapted to carry respective mating halves of each mold in a horizontal plane from a start end of the fields to the terminating end. The mold cavities face upwardly. The lower surface of each mold half has secured thereto elongated T-shaped bars. The bars are parallel with each other, and each bar is adapted to be carried by one line of rollers in a respective one of the fields. The parallel axes of the rollers are set to an exact height by means of a laser light source and photoresponsive means so that the upper edges of the rollers lie in the same horizontal plane.Type: GrantFiled: February 25, 1974Date of Patent: June 15, 1976Assignee: Automated Construction Industries, Inc.Inventor: John Lorin Bourdo
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Patent number: 3951578Abstract: This invention relates to an apparatus for automatically adjusting the center-height of a mold and the like which are used for manufacturing concrete pipes characterized in comprising a supporting device which supports a mold and the like for manufacturing concrete pipes horizontally in the manner that the center of the axis of the mold moves vertically along a perpendicular line and stops it at a determined position, and a detecting device which detects the position of the mold by contacting with the outside of it and controls and stops the movement of the said supporting device when the center of the mold is placed at the determined position.Type: GrantFiled: June 28, 1974Date of Patent: April 20, 1976Assignee: Nippon Concrete Industries Co. Ltd.Inventors: Yoshiaki Horiuchi, Masaaki Hanawa, Shinzo Hasegawa
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Patent number: RE29633Abstract: This disclosure relates to a mechanism for maintaining alignment between two relatively movable members, specifically platens or supports for retreading molds, although not limited thereto, and includes a pair of generally parallel screws .Iadd.having a common feed mechanism, the screws being fixed to the members against axial movement relative to each other .Iaddend.with .[.means for axially shifting.]. one of the screws .Iadd.being shiftable .Iaddend.relative to the .[.other.]. .Iadd.feed mechanism .Iaddend.to maintain alignment between the two platens or supports.Type: GrantFiled: June 14, 1977Date of Patent: May 16, 1978Inventor: Kenneth T. MacMillan