Abstract: A dust solidification apparatus that prevents dust from scattering with a simple structure and that can accurately perform solidification of dust. A dust solidification apparatus comprising: an apparatus body; a hopper for storing dust D, the hopper being provided on the apparatus body; a forming member provided within the hopper, the forming member having a forming hole; and a pressurizing rod that is configured to freely advance and withdraw with respect to the forming hole, wherein the pressurizing rod advances into the forming hole to solidify dust loaded therein, thereby obtaining a solidified substance K, and openings of the forming hole are open within the hopper.

Abstract: A mold system for forming a multilevel block is disclosed which comprises a multilevel mold box insert for forming a multilevel block, a mold box frame adapted for receiving therein the multilevel mold box insert, a multilevel plunger assembly, and a press head plate adapted for receiving thereon the multilevel plunger assembly.

Abstract: The present invention relates to a block machine (1) with a machine bed (2, 3) at which at least one lifting device (4, 5) for a supporting member (6, 7) is arranged. The supporting member (6, 7) is movably supported on the machine bed (2, 3) via a linear guide which has at least one longitudinal guiding member (8a, 8b, 9a, 9b) and a guiding means (10, 11, 12, 13, 14, 15) interacting therewith. To the supporting member (6, 7) there is attached a first longitudinal guiding member (8a, 8b) that is movably supported via at least one bed guiding means (10, 11, 12, 13) that is arranged at the machine bed (2, 3). At the machine bed (2, 3) a second longitudinal guiding member (9a, 9b) is arranged on which the supporting member (6, 7) is movably supported by a supporting member guiding means (14, 15) arranged thereon.

Abstract: A mold system for forming a multilevel block is disclosed which comprises a multilevel mold box insert for forming a multilevel block, a mold box frame adapted for receiving therein the multilevel mold box insert, a multilevel plunger assembly, and a press head plate adapted for receiving thereon the multilevel plunger assembly.

Abstract: A pre-cast concrete wall system for crawlspace applications is herein disclosed. The system includes a plurality of interconnected pre-cast concrete wall panels having a recessed area along one side to reduce concrete usage and weight, while maintaining load bearing properties. The wall panels are securely fastened to a substructure, such as footers, using anchors and to each other by opposingly aligned keyways and connecting fasteners. Each wall panel includes at least one (1) pair of leveling bolts which provides for the leveling of the wall panels and correct for any unevenness in the footer. The wall panels are fabricated using a rotating casting table which allows an operator to pour concrete at ergonomic heights and rotate the casting table and cured wall panel member to a vertical position for convenient unloading and transportation of the wall panel to a job site.

Abstract: A method for production of coke chamber-compatible coal briquettes. Horizontally feeding coal into a pressing mold formed from a plate having two parallel terminating walls, which are stationary with respect to the direction of movement of the plate, and a terminating stop wall disposed transversely to the direction of movement of the plate. The side of the pressing mold open to coal is closed by a stationary wall, and the plate is locked in the horizontal direction for the pressing operation. The coal is compacted by a tamping device, having a vertically acting force onto pressing mold to produce a coal briquette. After completion of the coal briquette, the plate is moved horizontally in the longitudinal direction so that the space in the pressing mold becoming free in the horizontal direction is used for producing the next coal briquette. A device for carrying out the method is also disclosed.

Abstract: A mold assembly mold having a mold cavity formed by a plurality of liner plates, wherein at least one of the liner plates is moveable toward and away from an interior of the mold cavity, and a heater element contacting and heating the moveable liner plate.

Abstract: The present invention relates to an apparatus and method for forming molded tapered products, such as masonry blocks, whereby high quality finished products are removed from their mold without the need for complex machinery for demolding. The mold may include one or more mold cavities having one or more movable cavity walls. The movable cavity walls may include an end liner having a planar product forming surface capable of moving from a vertical position to an angled position. Tapered products may be formed by moving the mold towards a pallet so that the pallet engages with the end liner and causes the end liner to move from the vertical position to the angled position. Moldable material may then be introduced into the mold cavity and may be allowed to remain in the mold cavity until it is self-sustaining. The mold may then be moved away from the pallet such that a molded product remains on the pallet, thereby allowing the end liner to move from the angled position to the vertical position.

Abstract: A mold assembly for manufacturing dry-cast concrete blocks in an automated dry-cast block machine, the mold assembly a plurality of liner plates forming at least one mold cavity, each liner plate corresponding to a perimeter side of the mold cavity, wherein at least one of the liner plates is moveable toward and away from an interior of the mold cavity. A master drive element is routed about at least a portion of the perimeter sides of the mold cavity, including the perimeter side corresponding to the at least one moveable liner plate, and forming a continuous loop, wherein the master drive element is configured to be driven back and forth about the loop to provide a first linear force in a first direction and a second linear force in a second direction opposite the first direction substantially in parallel with each perimeter side along which the master drive element is routed.

Abstract: The invention provides methods of manufacturing toric lenses, apparatuses useful in the method of the invention, and lenses produced according to the method in which method the position of one mold half in relation to its complementary mold half is more precisely controlled so that tilting and rotation of the mold halves in relation to each other is substantially eliminated.

Abstract: Molds and processes that permit high-speed, mass production of retaining wall blocks having patterned or other processed front faces, as well as retaining wall blocks formed by such processes. The invention permits the front face of the block to be impressed with a pattern or otherwise directly processed, to allow the formation of pre-determined block front faces, while at the same time facilitating high-speed, high-volume production of blocks. Pre-determined front faces can include front faces having pre-determined patterns and textures, front faces having pre-determined shapes, front faces made from different material(s) than the remainder of the block, and combinations thereof.

Abstract: The invention relates to the production of multi-layered concrete moulded bodies in a moulding machine comprising a moulding insert having a plurality of mould cavities. Relief structures are arranged in the lateral walls of the mould cavities and are dimensioned in such a way that projections formed on the moulded body when the filled concrete material is compacted engage in the relief structures, thereby creating sufficient retaining force for compensating the net weight of the moulded body and enabling the moulded bodied to be extracted from the mould cavities as a result of additional demoulding forces and causing elastic deformation of the projections without any material being cut off from the projections.

Abstract: Molds and processes that permit high-speed, mass production of retaining wall blocks having patterned or other processed front faces, as well as retaining wall blocks formed by such processes. The invention permits the front face of the block to be impressed with a pattern or otherwise directly processed, to allow the formation of pre-determined block front faces, while at the same time facilitating high-speed, high-volume production of blocks. Pre-determined front faces can include front faces having pre-determined patterns and textures, front faces having predetermined shapes, front faces made from different material(s) than the remainder of the block, and combinations thereof.

Abstract: The invention concerns a device for making soft cheese or fresh paste cheese comprising at least a first set of perforated cheese-moulds and at least a second set of perforated cheese-moulds arranged in a chamber. The invention is characterized in that said first and second sets of cheese-moulds are designed to be fitted one into the other.

Abstract: A method to create blocks having a weathered and aged look by modifying the blocks before they are cured. Green blocks exiting a block forming machine are conveyed along a path past brush elements which scrub block mix from the upper longitudinal corners of the formed, uncured blocks. The blocks are also passed longitudinally over tooth elements which irregularly remove block mix from the lower longitudinal corners of the green blocks. The modified green blocks are moved to a kiln for curing.

Abstract: A main frames having bottom and top frame parts for concrete molding machines of the kind which are used in making slabs or blocks for covering surfaces and erecting walls are usually made by welding together cut standard steel sections of the types HEM, RHS, UNP, etc. The requirements to materials and welds at the making of bottom frames of this kind are high due to the fact that welded structures subjected to vibration only has 10-15% of the basic material strength in the welding zones. Thus, the main frame has a bottom frame part (40) formed of two flame cut bottom plates (42, 44) arranged in parallel as an upper plate (42) and a lower plate (44) and forming the basic shape of the bottom, the bottom plates (42, 44) being interconnected by at least two longitudinal plates (46, 48) and a number of transverse plates (50, 52, 54). In this way, substantial savings are achieved as the main frame can be made with fewer or no welds in the critical areas, or with welds of a lower class.

Abstract: A method of forming a concrete retaining wall block having a front face and an opposed back face in a front fact up position. The method includes inserting a plurality of tines of a horizontal core puller into a plurality of holes in the bottom of a mold such that the a plurality of tines are positioned to form a dovetail slot and chamfers in the back face of a concrete retaining wall block; and pressing and vibrating a semi-dry concrete mix feed into the mold with a head to form a concrete retaining wall block having a relief stamped in its front face and to form the dovetail slot and chamfers its back face. The method allows the dimensions of the concrete retaining wall block to be exact and consistent from cycle to cycle of the method.

Abstract: A concrete product molding machine supports a mold with a vertically extending mold cavity. A pallet support is mounted for lifting movement to dispose a pallet to close the cavity. Attachment structure extends from the mold to rest on frame surfaces prior to being moved upwardly to provide a clearance for vertical vibration of the mold. Mechanism vibrates the mold in a vertical path having lateral x and y axis vibration components. A guidance pin receiver is carried by the support attachment structure and a pin carrier assembly on the machine frame carries a vertically reciprocal guidance pin movable from a remote position up into the pin receiver. A vibration limiter is disposed laterally to the pin for limiting at least one of the lateral vibration components and a motor operated mechanism is coupled to the pin for moving the pin vertically.

Abstract: A biaxially stretching blow molding apparatus perform biaxial stretch-molding for a preform into a predetermined shape by transporting a preform carrier supporting the preform along a transporting path extending across a heating portion and a stretch-molding portion, has first and second reversing means for reversing the preform carrier, and first and second transporting paths forming the transporting path. The first reversing means receives the preform carrier transported in up-side-down position along the second transporting path, reverses the received preform carrier into elected position, and transfers the preform carrier thus reversed to the first transporting path. The second reversing means receives the preform carrier transported in elected position along the first transporting path, reverses the received preform carrier into the up-side-down position, and transfers the preform carrier thus reversed to the second transporting path.

Abstract: A method of preparing stackable block structures from raw concrete mixes and block structures prepared in accordance with the method, wherein the process utilizes a mold box configured to form the block on its side surface. The mold box is arranged to travel along the surface of a moving conveyor belt, with the box having an open top, an open bottom, and lateral side panels supported on the conveyor belt surface, and with the panels having core bar receiving openings formed therein. The core bars are introduced and removed from the mold box along an axis which is parallel to the surface of the core bars and to the motion axis of the conveyor belt, and with the core bars configuring one of the two opposed side surfaces of the stackable block. A reciprocating top shoe arranged for reciprocatory up and down motion engages and configures the top surface of the raw concrete mix held within the walls of the mold box.

Abstract: A method and apparatus for practicing the method of making toric contact lenses having a toric axis and ballast axis located on the anterior and posterior surfaces of a lens. Detectable features are formed on the anterior and posterior mold sections corresponding to the location of the toric axis and ballast axis, respectively. An axis alignment tool having detecting means thereon is used to set the mold sections to a known angular position. The desired axial offset is input into a computer which establishes the axial offset between the mold sections.

Abstract: A rotational indexing base curve deposition array for assembling contact lens base curves and front curves with a prescribed and programmable angular orientation to produce a contact lens having a selected axis placement therein, such as a toric axis for a toric contact lens. An array of front curve molds are arranged in a support pallet with a dosed amount of monomer mixture deposited into each of the front curve molds. An array of deposition tubes, positioned in a support plate and coupled to a vacuum source, is used to pick up and support an array of base curve molds. Each of the deposition tubes is then angularly rotated in to the support plate to a selected angularly indexed position therein. A common angular rotational drive is coupled to each of the deposition tubes in the array to angular index each of the deposition tubes to a precise angular position in the support plate.

Abstract: An apparatus for manufacturing green bricks for the brick manufacturing industry includes mould containers which are placed on a chain conveyor and which are provided with movable bottoms. The green bricks are released by displacing the bottom of the mould containers. According to the invention the mould containers are combined to a mould container part and coupled to a chain part connectable to the chain. During exchange of mould containers the chain part remains coupled to the chain conveyor while the mould container part can be rapidly uncoupled and exchanged.

Abstract: A mold box is flexibly mounted to a product forming machine having upper and lower vertically displaceable beams. A feed drawer dispenses concrete material into the mold box while a vibration system vertically vibrates the mold box while dampening horizontal vibration. The vibration system is driven by a single drive shaft that actuates first and second vibrator rods while at the same rotating a counter-weight in a counter-rotating direction. A set of alignment brackets lock the mold box into a predetermined aligned relationship while being mounted in the product forming machine. The bottom side of each mold box is mounted to the product forming machine in the same relative position to reduce machine readjustments. A set of telescoping legs hold the feed drawer assembly variable distances above the mold box. A unitized pallet feeder quickly moves pallets one at a time from an "on-deck" position to a "receiving" position underneath the mold box.

Abstract: A mold box is flexibly mounted to a product forming machine having upper and lower vertically displaceable beams. A feed drawer dispenses concrete material into the mold box while a vibration system vertically vibrates the mold box while dampening horizontal vibration. The vibration system is driven by a single drive shaft that actuates first and second vibrator rods while at the same rotating a counter-weight in a counter-rotating direction. A set of alignment brackets lock the mold box into a predetermined aligned relationship while being mounted in the product forming machine. The bottom side of each mold box is mounted to the product forming machine in the same relative position to reduce machine readjustments. A set of telescoping legs hold the feed drawer assembly variable distances above the mold box. A unitized pallet feeder quickly moves pallets one at a time from an "on-deck" position to a "receiving" position underneath the mold box.

Abstract: A concrete block molding apparatus and component molding parts coated with a flame spray refractory material and binder composition. The coatings can be smoothed to provide a finished surface for the blocks as by polishing, pressure on the coated surface or preferably by a coating of a thermoset resin as a binder. A preferred thermoset resin includes polytetrafluoroethylene (PTFE) in the coating to improve slipperiness. The parts have a greatly increased life cycle and the apparatus has a much longer cycle time between changes of the parts.

Abstract: A mold box is flexibly mounted to a product forming machine having upper and lower vertically displaceable beams. A feed drawer dispenses concrete material into the mold box while a vibration system vertically vibrates the mold box while dampening horizontal vibration. The vibration system is driven by a single drive shaft that actuates first and second vibrator rods while at the same rotating a counter-weight in a counter-rotating direction. A set of alignment brackets lock the mold box into a predetermined aligned relationship while being mounted in the product forming machine. The bottom side of each mold box is mounted to the product forming machine in the same relative position to reduce machine readjustments. A set of telescoping legs hold the feed drawer assembly variable distances above the mold box. A unitized pallet feeder quickly moves pallets one at a time from an on-deck position to a receiving position underneath the mold box.

Abstract: A transporting apparatus for moving away injection-molded articles from an injection molding machine includes pallets; a charging station for loading the pallets; transporting pallets each individually supporting at least one pallet and coupled thereto for forming a transporting unit; a pallet tower spaced from the charging station for storing a plurality of pallets; an elevator for receiving empty pallets from the pallet tower and loaded pallets from the charging station and being vertically freely movable during loading of the pallets in the charging station; a conveyor for moving the transporting pallets between the elevator and the charging station for transferring empty pallets from the elevator to the charging station and for transferring loaded pallets from the charging station to the elevator; and a positioning arrangement for placing the elevator into such a position during transfer thereto of empty pallets from the pallet tower and transfer therefrom of loaded pallets into the pallet tower that a tr

Abstract: Green concrete products, such as building products, are placed on pallets. Those pallets are transported to a kiln for curing and from the kiln after cure by an overhead crane. Pallets are lowered into and removed from open top kilns layer by layer being supported by movable support ledges, for example rotatable toggles, at each layer position which permit vertical entry and removal of the pallet layers. Three kiln compartments permit continuous production, one being filled, one being emptied and the third curing a load of pallet layers.

Abstract: An independent pallet delivery system for transporting pallets through a block forming machine that forms concrete blocks on a pallet. The systems includes a pallet magazine for storing a plurality of pallets therein. A conveyor belt formed with a pulley system for transporting the pallets. A pallet pick-up position which receives a pallet from the pallet magazine and places the pallet in a holding position above the conveyor. A jacking assembly is provided to raise that conveyor to engage with the pallet and deliver the pallet to the block forming machine. The block forming machine lifts the empty pallet and forms a molded block thereon. As the block forming machine lowers the pallet towards the conveyor, the jacking assembly lowers the conveyor to cushion the return of the pallet having the molded cement blocks thereon. The pallet with the molded concrete blocks is placed on the conveyor and a takeaway conveyor which move at essentially the same speed and outputs the pallet to an automated conveyor.

Abstract: An endless conveyor having a plurality of molding tray supports is mounted on an intermittently indexing turntable. A press of the type adapted to form the clay into lumps deposits these lumps into molding trays on the conveyor, and thereafter the trays pass successively through a series of stations where the loaded trays are trimmed, where the loaded trays are tilted, and where the moldings are dropped onto carrying pallets and stations for washing, drying, and sanding of the empty trays and a station for tilting the molding trays back to the filling position. The tray supports are tiltably mounted about radial axes to enable tilting of the trays and a device for supplying the pallets for the empty trays and for the discharge of the pallets loaded with moldings extends diametrically underneath the turntable adjacent the unloading station.

Abstract: A press for manufacturing stones provided with a mould including several moulding rooms and taking a fixed position, a stamp arranged above the mould and being movable up and down, a table arranged under the mould and being movable up and down, a supply converyor for supplying empty product plates and with a discharge conveyor for discharging the product plates carrying stones shaped in the mould, whereby the moulding mass is compressed in the mould while under the mould a moulding plate supported by the table is located, which is provided with upright ribs for shaping bevelled edges on the stones, whereby during compression the stamp is moved downward until the stamp is located at a certain distance from the table, determined by cooperating stops provided on the table and on the stamp, after which the moulding plate is removed from between the table and the mould, while simultaneously a product plate is moved between the table and the mould and next the stones shaped in the mould are pressed out of the mould

Abstract: A mould for forming ceramic tile of different colored ceramic materials is provided with a first material supply for supplying material for a ground layer. A second material supply for supplying a second layer of material is provided whereby a multicolred material is fed to the mould by a movable slide containing a sieve through which the material is fed to the mould. A third material supply is supplied to the mound via a drivable conveyor belt which collects a third layer of material from one or more strewing bins and deposits the material onto the second layer of material. The apparatus also contains metering rollers that deposit material from the strewing bins onto the conveyor belt.

Abstract: A shaft coupling construction for a vibratory screed. The screed includes at least two vibratory shafts which are disposed in end-to-end relation and an end of each shaft is secured within a bore in a sleeve or connecting member. Each shaft is mounted for eccentric motion to impart vibration to the screed. Each adjacent pair of connecting members are secured together by a flexible tubular coupling, and to transmit rotation between the shafts, the connecting members are provided with external splines which mate with internal splines on the tubular coupling. The spline connection is not symmetrical and is arranged so that the connecting members can be engaged with the tubular coupling only in one circumferential position, thereby insuring that the eccentricity of one shaft is circumferentially aligned with the eccentricity of the other shaft.

Abstract: A mold guidance system for preventing horizontal movement of the mold of a concrete block making machine including, on each side of the machine, a mold support arm extending laterally outwardly from the inside corner of the mold and including a bushing in the outer end thereof, a first clamp secured to the side of the machine frame above the mold arm bushing, a second clamp element secured to the side of the machine frame below the mold arm bushing, and an elongate pin slidably movable within the mold arm bushing and fixedly engaged at the upper end by the first clamp and at the lower end by the second clamp. The mold guidance system prevents horizontal movement of the mold so as to reduce mold wear and increase mold life.

Abstract: A staged mold for stabilizing hazardous wastes for final disposal by molding an agglomerate of the hazardous wastes and encapsulating the agglomerate. Three stages are employed in the process. In the first stage, a first mold body is positioned on a first mold base, a mixture of the hazardous wastes and a thermosetting plastic is loaded into the mold, the mixture is mechanically compressed, heat is applied to cure the mixture to form a rigid agglomerate, and the first mold body is removed leaving the agglomerate sitting on the first mold base. In the second stage, a clamshell second mold body is positioned around the agglomerate and the first mold base, a powdered thermoplastic resin is poured on top of the agglomerate and in the gap between the sides of the agglomerate and the second mold body, the thermoplastic is compressed, heat is applied to melt the thermoplastic, and the plastic is cooled jacketing the agglomerate on the top and sides.

Abstract: A machine is provided for manufacturing moulding trays. Each bed plate is connected between two parallel endless conveying chains such that each is downwardly turnable as it passes over rear chain wheels. Carrying rollers are fixed to the rear of each bed plate. A guiding means is arranged between upper and lower parts of the chains for guiding the rollers during the downward turning. A supporting track is provided beneath the lower part of the chains. Thus, the present invention conserves the space in the conveying direction while conveying the bed plates in the direction of the lower part of the chains by the connecting means and by the carrying rollers contacting the supporting track.

Abstract: A plant for manufacturing aerated concrete products includes a casting station where a quick-stiffening mixture is prepared and poured into a mold. To form the mold, a movable wall arrangement disposed at the casting station is temporarily united with a transportable mold bottom. After the poured mixture hardens to a semiplastic body, the semiplastic body is removed along with the mold bottom and another mold bottom is assembled with the wall arrangement to receive the next pouring of mixture. As a result, the capital investment required for the plant is minimized. Wires on the wall arrangement may be used to automatically cut the semiplastic body into blocks. The stiffening time for forming the semiplastic body is kept short so that the pacing time between consecutive pourings can also be kept short. The semiplastic bodies on the mold bottoms are stacked on trucks which are guided by tracks to autoclaves at a steam curing station.

Abstract: A material feed system provided with a plurality of injection molding machines. A filling station is provided and has a resin tank in which resin material is stored, a container to which the resin material is fed from the resin tank, and a coupling device for coupling the resin tank and the container on demand. A carrier having a clamping mechanism runs along a track which is laid so as to pass over the injection molding machines and the filling station. The coupling device is controlled by a control unit. The control unit also controls the movement of the carrier to thereby transport the container by the use of the clamping mechanism and to feed the resin material from the container to the injection molding machines.

Abstract: A device for manufacturing bricks with smooth side surfaces includes a conveyor carrying a plurality of mould containers past a releasing material applying mechanism, a container filling and trimming member, and a brick ejection station. Each mould container has a bottom which is displaceable out of the mould to both receive releasing material at the releasing material applying mechanism and to eject a formed brick at the ejection station.

Abstract: In manufacturing concrete tiles a stiff concrete mass is molded and heavily compacted by means of a rapidly rotating pressing roller on sheet metal molding trays, which during the molding operation are supported by carriers having relief-like supporting surfaces which are generally complementary to the bottom sides of the tiles. The tray carriers form parts of an endless conveyor passing a concrete extruding station, in which the pressing roller is included, the tray carriers being formed as platforms placed freely between a pair of driving chains, to which each platform is connected by one pair of coaxial pivots only. Each platform is composed of two segments, which are hingedly interconnected independently of the chains. When passing the concrete extruding station the tray carrying platforms rest on an endless intermediate belt moving over a stationary supporting bed, through the top side of which pressurized air is supplied in order to reduce the friction.

Abstract: A staged mold for stabilizing hazardous wastes for final disposal by molding an agglomerate of the hazardous wastes and encapsulating the agglomerate. Three stages are employed in the process. In the first stage, a first mold body is positioned on a first mold base, a mixture of the hazardous wastes and a thermosetting plastic is loaded into the mold, the mixture is mechanically compressed, heat is applied to cure the mixture to form a rigid agglomerate, and the first mold body is removed leaving the agglomerate sitting on the first mold base. In the second stage, a clamshell second mold body is positioned around the agglomerate and the first mold base, a powdered thermoplastic resin is poured on top of the agglomerate and in the gap between the sides of the agglomerate and the second mold body, the thermoplastic is compressed, heat is applied to melt the thermoplastic, and the plastic is cooled jacketing the agglomerate on the top and sides.

Abstract: Apparatus for propelling a succession of pallets in a longitudinal direction has a plurality of pawls for pushing the pallets and spaced apart on a pair of endless drive chains each having a portion extending parallel to a pallet guide means. Each pawl is arranged to move in such a way that in use it engages one of the pallets to push it along the guide means and disengages from the pallet further down the guide means, the movement of each pawl being controlled by an associated cam follower wheel cooperating with one of a pair of longitudinally extending cam tracks. The cam follower wheel can be laterally moved on a shaft to select the appropriate cam track for the type of pallets to be conveyed, so that the apparatus can be easily adapted to e.g. different length pallets.

Abstract: The mold described herein comprises an upper and a lower portion in which the upper portion comprises an inverted cavity flash land mold section and the lower portion comprises a readily removable steel plate. By having the cavity flash land mold portion inverted and in the upper portion of the mold, the molded product is more easily separable by gravity from this upper mold portion which avoids the necessity to use means for lifting the molded product from the cavity and thereby avoids the distortions and stresses previously caused in the product by such lifting means. To aid in separating the product from the inverted cavity upper portion as the upper portion is separated from the lower flat sheet portion of the mold, releasing means, such as air from poppet valves in the upper area of the cavity mold, may be used to facilitate separation of the product from the upper cavity portion and deposition of this product on the lower flat sheet portion of the mold.

Abstract: A molding machine is disclosed which includes a vibration zone; an endless conveyor movable across the vibration zone and having tread plates pivotally connected in succession. The molds are provided on the tread plates and include bottom wall pallets each freely supported by one of the tread plates. Upward vibration is applied to the bottom wall pallets independently of the tread plates as the conveyor moves across the vibration zone.

Abstract: A production line for bitumen cakes comprising sequential processing stations, i.e. a station whereat hot bitumen is cast into basins or pans, a station whereat the bitumen is air cooled, a station whereat the solidified bitumen cakes are shaken out, a station whereat the cakes are packaged in a heat-shrinkable plastic material, and an optional palletization station. The production line is set up to accommodate a plurality of pans which are carried in groups on a plurality of platforms or supporting frames adapted to be cyclically passed through the casting, station, cooling station where they are piled, and shake-out station. The cake shake-out station includes an extraction apparatus equipped with a pusher intended for acting on the outside of the pan bottoms to produce resilient deformation of such bottoms and twisting of the pans to separate the pan from the bitumen cake contained therein.

Abstract: A three-dimensional work piece, such as an interior part for a car, is manufactured by keeping the blank, such as a sheet of plastic on or in the same primary mold (24) for the initial shaping step, for the foaming step, for the curing step and for the final trimming step. The primary mold (24) shuttles back and forth in a given direction for sequential cooperation with two secondary molds (75 and 31 or 48 and 31) arranged for reciprocation in a direction extending perpendicularly to said given direction. Preferably, two primary mold members (66, 67) are arranged for horizontal back and forth shuttling in unison so that each primary mold member may cooperate with two out of three vertically reciprocable secondary molds. The efficiency is substantially doubled when each of two primary mold members (66, 67) cooperates with two out of three secondary molds.

Abstract: 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.

Abstract: An elongated mold box encloses a removable rectangular pallet and has a center portion pivotally supported by a carriage which is supported for vertical movement by a pair of vertical guide posts mounted on a frame. Hydraulic cylinders are connected to move the carriage vertically relative to the frame and pivot the mold box relative to the carriage for tilting the mold box between a vertical concrete filling position and a horizontal position for stripping a molded concrete article from the mold box. The pallet is supported within the mold box by a generally flat tray member which is guided by parallel rails within the mold box and aligned horizontal guide rails on a run-out platform. The mold box also carries a hydraulic cylinder for moving the tray member between a retracted position within the mold box and an extended position on the run-out platform.

Abstract: 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.