Abstract: A high tonnage reaction injection molding (RIM) press has fixed and movable platens for clamping a composite mold therebetween at a closed mold position. A plurality of high pressure hydraulic cylinders are mounted on a carrier for the movable platen, and a locking mechanism having a plurality of incrementally spaced locking positions is effective to lock the carrier selectively at said positions. A pair of low power hydraulic piston-cylinder assemblies connected with the carrier adjacent to its opposite ends move the carrier and movable platen to the closed position. Short stroke connecting rods operated by the high pressure cylinders are forced independently of each other into high tonnage engagement with the movable platen at a plurality of locations within the area of the composite mold to clamp the latter between the platens and positively seal its junctures, whereupon a RIM mix head injects the high pressure reactive chemicals into the sealed mold.

Abstract: An apparatus for shaping, by compacting, carbonaceous blocks formed by a carbonaceous paste based on a carbonaceous aggregate such as coke, anthracite or graphite, and an organic cokable binder such as tar and optional additives. The carbonaceous paste is introduced into a mould in which some of the walls are displaceable with respect to their initial position and there are successively applied to said paste at least one stress .sigma.n along an axis An, then at least one stress .sigma.n+1 along an axis An+1 which is not coincident with the axis An, then at least one stress .sigma.n+2 along an axis An+2 which is not coincident with the axis An+1, and so forth, repetitively, each stress .sigma.(i) being applied after at least partial suppression of the stress .sigma.(i-1). Use of the apparatus substantially enhances compactness of the carbonaceous blocks.

Abstract: A system for baling strands of material wherein a predetermined quantity of strands of material is compressed into a bale of strands of material having a density of at least about 14 pounds per cubic food and having a substantial portion of the bale unmatted, the system being particularly useful for baling easter grass. The system includes a baler wherein the strands of material are compressed in a substantially enclosed portion of the baler to form the bale of material. In the system, a predetermined weight comprising a portion of the total desired weight of a bale of material is compressed, and additional portions are added and compressed until the total desired weight has been compressed into a bale of material.

Abstract: A method and apparatus for compressing fibrous material into dense bales having uniform size, shape and weight. Weighed longitudinally extended charges of material having a predetermined transverse dimensional profile are individually loaded into a compression chamber defined by side plates and first and second movable end platens. A long-stroke small-diameter hydraulic piston pushes the first end platen against the charge toward the second end platen, partially compressing the charge. The first end platen is then latched in a fixed position at full stroke while the second end platen, via a short-stroke large-diameter hydraulic piston, applies a further compressive force to the charge against the first end platen. The resulting fully compressed charge is pushed out of the compression chamber, bound loosely while still fully compressed, then released, whereupon the bale longitudinally expands into the bindings to a predetermined length.

Abstract: A device for use in waste containers wherein the waste is packed, compressed and secured in its compact state within the container. The device comprises a rack consisting of a pair of telescoping cross bars with the opposite ends of said cross bars provided with yieldable anti spring back retainers that are adapted to be received and locked in guide channels carried by confronting interior wall surfaces of the waste container. These channels are complete with cooperating yieldable or pivotal anti spring back retainer clips positioned interiorly of the channels in the path of the respective ends of the rack's cross bars so as to secure the same in a latched depressed position against the compacted waste material within the container.

Abstract: A hydraulic press has smooth columns that mount relatively movable mold support platens on a base and a ram or cross head. The bed and ram are rigid, low deflection fabricated members mounted on the columns. The clamps that clamp the movable ram in molding position have integrated pressing and stripping cylinders for performing the actual molding operation. The movable ram member is opened and closed with actuators separate from the molding force cylinders. The construction permits making a lighter weight press without a heavy crown at the top of the press.

Abstract: A molding apparatus for producing a molding from multi-component plastic, especially polyurethane. The upper and lower parts of the mold are fastened, respectively, on mold holders of which at least one is movable relative to the other and can be propped in a closed position in which the upper mold part and lower mold part are still at a slight distance apart. Starting out from this closed position the upper and lower mold parts can be brought together and pressed against each other by a jacking device which is provided on at least one of the mold holders.

Abstract: An extension is provided for a compacting device of the type adapted to be inserted into a container and having a plurality of compacting plates adapted to press loose material into the container and engage the compacting device to prevent expansion of the compacted material. The extension is adapted to sit on the upper end of the compacting device and extends above the container to hold excess loose material prior to compaction by the compacting plates. Smooth guide rods are provided on the inner surface of the extension for guiding the compacting plates into engagement with aligned threaded rods in the compacting device.

Abstract: The invention relates to a process for relaxing lateral stresses at the end of shaping by compacting of a block constituted by an aggregate and a binder (such as a carbon-containing paste), to which is applied a main monoaxial stress in a rigid mold having a bottom and four side walls. According to the process, at the end of compacting and along the compacting axis, there is maintained a residual stress of between 50 and 2000 kilopascals, and preferably between 100 and 500 kilopascals. At least two of the side walls of the mold are then moved apart by a few millimeters, followed by the elimination of the main stress and the extraction of the molded block. The residual stress is maintained for a period of between 1 and 20 seconds following the moving apart of the walls.

Abstract: A food product press includes a vertically disposed array of interleaved pairs of product carrying shelves and compression shelves, between each pair of which food products, such as hams, may be compressed for processing. The product shelves are fixed and the compression shelves are movable as a group with respect thereto and may be set and held at any desired spacing or with any selected compression of the products. The press is manually operable by a single operator and is readily disassembleable for cleaning or modified use.

Abstract: A device (10) for registering together two cooperable glass article handling components (12,14) is disclosed as including a first registering member (16) on one of the handling components and a second registering member (18) on the other component. The registering members (16,18) are movable toward one another in a direction of registration A,A' and one of the registering members includes fixedly spaced rollers (20) for engaging the other registering member with rolling contact to provide registration between the handling components (12, 14) during glass article handling.

Abstract: A container used for compacting materials such as low level radioactive waste has a device used to keep the compacted material from springing out of the container when the compacting force is removed, thus resulting in a significant increase in the final compacted density. The device develops its restraining force by using the beam strength of its members. The device includes a louvre attached to the container, enabling the cross beams to be snapped into place with a wedge shape of the cross beam end or a hydraulic clamping device external to the container.

Abstract: Apparatus useful as a compacting device adapted to be inserted into a barrel or similar container either singularly, or in combination with a plurality of similar devices and generally comprising one or more compacting plates which plates are adapted to fit within such container and disposed therein for movement in a direction generally parallel to the axis of such container. A plurality of resilient locking tabs are secured to the upper surface of such compacting plates each by means of an angle bracket and in a manner so as to extend beyond both the peripheral surface of such compacting plate and the outermost edge of said angle bracket to thereby provide for engagement of said tabs with the inside of such container. When loose material is placed in the container, and a compacting plate is inserted thereinto and pressed downwardly, the material within the container and under said plate will be compacted.

Abstract: A guide pin assembly is described which unidirectional orients mold platens while permitting temperature compensating movement in a perpendicular direction. This is accomplished by using a guide pin and shoe that contact in one direction and permit movement in a perpendicular direction. A bushing containing preloaded bearings is disposed about the guide pin such that the bearings make contact with the shoe to reduce wear and permit the guide pin to slideably contact the shoe.

Abstract: Contaminated waste containers having one or more internally disposed waste compression frames which are locked into position within the containers by resiliently biased hold-down mechanisms oriented within guide channels which extend along the side walls of the containers. Each of the frame guide channels is selectively provided with a supplemental guide member which extends above the upper edge of the box in order to guide the compression frames when in an elevated position with respect to the box and channel caps are also provided to prevent waste from being forced into the upper portion of the channels during use.

Abstract: In a bagmaker, two pairs of opposed jaws to draw a web of material about a former and seal the web to form separate bags, each set of jaws are cantilevered on a support and have electromagnetic assist to provide pressure during sealing.

Abstract: A 2000 ton hydraulic press is designed to eliminate the side slabs and substantial cross-head associated with conventional presses. The press simply has a base that includes a lower platen and bolster plate. Four vertical posts extend upwardly through the lower platen bolster plate, and guide structure beneath the lower platen bolster plate constrains the posts to move vertically while bearing horizontal forces and bending moments which may be applied to posts for example during compression of a mold containing a molding charge. Four large-bore, short-stroke hydraulic cylinders are attached to the base below the lower platen bolster plate, and serve to raise and lower the posts during compression phases of operation.

Abstract: A 2000 ton hydraulic press which can be conveniently retrofitted for platen parallelism control has a conventional support structure which includes a base, a pair of side slabs and a cross-head. A lower platen is fixed to the base structure, and an upper platen is guided on the side slabs for vertical movement towards and away from the lower platen. Short-stroke, large bore compression-phase hydraulic cylinders are mounted within the lower platen, and have piston rods extending vertically through an upper surface of the lower platen. A vertical post is supported from each piston rod, and travels through an aligned vertical passage provided in the upper platen. A pair of long-stroke, narrow bore hydraulic cylinders permit the upper platen to be advanced quickly towards the lower platen to close the gap between the platens.

Abstract: A portable hot-press for thermowelding marked and/or printed foils of thermoplastic synthetic material, particularly PVC, to produce single-sheet identification cards. There are provided a press drive, two heating plates, one fixed and one sliding cross bar on the press and a fan for cooling the heating plates and thermowelded foils. Two screw elevating gears, driven by a gearmotor are provided to guide and move the cross bar of the press. The gearmotor may have a retaining brake.

Abstract: There is disclosed a device for locking the paint containing vessels in apparatus for mixing or blending paints and the like, comprising two movable plates firmly coupled to corresponding parallely extending supporting rods, each supporting a fixed gear wheel at the central portion of which there is provided a lever forming one of the two ends of an open frame structure and on which there are pivoted two arms, in turn pivoted to the movable plates, on which there are coupled two vessel clamping rotatable disks.

Abstract: The present invention provides a mold clamp apparatus having a novel construction wherein, though the advance of the movable platen is blocked, it is possible to perform a powerful mold clamping operation as in case of a direct compression operation, and it is also possible to make a support of the movable platen accurate by connecting the tie bar to the fixed platen, and further it is also possible to perform a high-speed mold-closing operation and a powerful mold-clamping operation continuously.

Abstract: The present invention relates to a process and an apparatus for storing contaminated waste material by compacting. The waste material is placed in a drum, it is compressed by forcing a precover into the drum and whose edges are made deformable in order to prevent the rising of the precover, by its edges locking on the walls of the drum, particularly by engaging in grooves made in these walls. The cycle is then repeated until the drum is completely full. Application to the storage of radioactive waste.

Abstract: An isostatic press includes a closed press frame, there being a pressure chamber bearing against a first interior portion of the frame. A conveyor path for pressure chamber closures (3) each carrying a press tool part, extends through the frame under the pressure chamber, displacement means being arranged for lifting in the plane of the frame a chamber closure (3) into contact with the pressure chamber. During pressurization of the pressure chamber (1) the closure (3) is carried by two separate support legs (4,5) pivotably mounted in the plane of the frame, the conveyor path extending between the legs. The closure (3) is carried in the plane of the frame by a portion (72) of the conveyor path, which constitutes the lower press table of the press and is supported by the legs. The free end surfaces of the legs may have an arcuate contour in the plane of the frame and coact with complementally formed surfaces on the underside of said portion (72).

Abstract: An apparatus for closing a ham mold, in which at least one two-part mold, consisting of a container and of a cover that fits loosely into it, is positioned in a chamber that can be vacuumized. The cover can be moved in relation to the container in order to compress a ham that has been placed in the mold. The apparatus is equipped with a compression bridge consisting of a strut, compression springs and a securing arm and is positively or non-positively connected to at least one compresion-medium cylinder that is positioned on one wall of the chamber and forces the parts on the mold into one another. A compression beam is positioned in such a way that it can be raised and lowered on two pressure-medium cylinders and that has two points of compression positioned at a distance along the compression-bridge strut and operates non-positively in conjunction with the compression bridge.

Abstract: A soap saving device for pressure bonding two or more pieces of wet soap comprising a pair of soap dishes which may be nested together to pressure bond two or more pieces of soap located between the nested soap dishes, or alternatively each may be employed as independent and separate soap dishes. The different species are disclosed for developing a soap bonding or compressing force between the dishes. An elastic band is employed in a first species using identical nesting soap dishes. In the second species, a pair of tension bars, each formed with a series of surface locking ridges or grooves, is hinged to one soap dish so that they may pivot into locking alignment with a pair of slots each having a set of flexible locking tabs for engaging the locking ridges. In the third species, the sidewalls of a base soap dish are formed with several sets of exterior locking ridges which adjustably engage mating sets of locking ridges formed on the interior of the skirt of the top soap dish which nests over the base dish.

Abstract: A padding press is disclosed for firmly holding sheets of paper to which adhesive, gummed cloth, or other material is to be attached at one edge to make the sheets into pads or books.

Abstract: The invention relates to a method of closing, compressing and opening filter presses for membrane filters with a stationary upper yoke (7) and a lower yoke (6) movable on vertical press columns (2) and has for its object to improve the service and buildup of such membrane filter presses. This is achieved according to the invention by a method in which a loose lifting tool (10) is fitted under the movable yoke (6) and set in operation, whereby the yokes and the press plates situated therebetween are pressed against each other whereupon the movable yoke (6) is locked in the position taken and, upon opening of the press, is released whereupon the lifting tool is set out of operation and is removed.An apparatus for carrying out the method is characterized in that, between the movable yoke (6) and an abutment (4) there is an interspace (14) in which a lifting tool (10) can be placed and set in operation or out of operation.

Abstract: A compacting device adapted to be inserted into a barrel or similar container is provided with a base member having a plurality of upstanding rods secured to the base member in equally spaced relation about the periphery thereof. A support ring surrounds the upper ends of the rods, with each rod being secured to the interior surface of the ring. One or more compacting plates are provided which are adapted to fit within the ring for movement in a direction parallel to the rods. A plurality of spring locking plates equal in number to the rods are secured to the upper surface of the compacting plates for engagement with the rods which are provided with threads along substantially the entire length thereof. Thus, when loose material is placed in the container, and a compacting disc is inserted into the compacting device and pressed downwardly by any suitable press or the like, the material within the container will be compacted.

Abstract: A device for use with waste containers wherein the waste is packed, compressed and held in its compact state within the container until the container's capacity is reached. The device comprises a frame consisting of a pair of cross bars with the opposite ends of certain of the cross bars received in vertical channels carried by confronting interior wall surfaces of the wall container. The channels are provided with yieldable locking members projecting inwardly of the channels and adapted to retain the cross bars in a depressed position against the compacted waste material within the container.

Abstract: A plate type filter press, which is opened and closed by at least one hydraulic piston-and-cylinder unit, has a mechanical lock to lock the press in the closed position so that it is not necessary to maintain a high hydraulic pressure to keep the press closed. The mechanical lock may be a set of claws on the hydraulic cylinder to co-operate with a locking ring on the piston rod, with a hydraulic lock cylinder to retract the claws for unlocking, or a lock gate that is introduced into or retracted out of the path of a lock collar on the piston rod by operation of a lock cylinder. The press is first closed with a predetermined high hydraulic pressure that compresses the filter press pack sufficiently for easy movement of the mechanical lock into locking position, and then operation of a lock limit switch automatically stops the hydraulic pump and energizes a bleed valve to reduce the closing pressure to a level at which the press pack compression is relaxed enough to give firm lock engagement.

Abstract: A press suitable for making cheese comprises a pressure assembly which is displaceable along guides projecting from the base of the press towards or away from a reaction yoke member formed by the base, the pressure assembly being constituted by first and second members which are resiliently biassed away from each other. Friction catches are provided which, in an operative position, frictionally engage the guides to resist displacement of the pressure assembly away from the reaction member.

Abstract: An improved heat seal machine having a lever linkage that cooperates with an electromagnet clamp to hold down a movable platen in heat sealing relation against a base platen after manual closure of the two platens into sealing relation. A spring operated opener returns the movable platen into home position after the electromagnet clamp is released, the opener cooperating with a dampener device that controls the opening rate of the movable platen.

Abstract: A paper padding press is disclosed comprising a support base and a tiltable rack having stacking and working positions for aligning a stack of pads and gluing and edges of the pads, respectively. The tiltable rack includes a planar stacking table having a pair of upstanding posts disposed at a right angle to the stacking table. The upstanding tubular posts support a pair of guide doors providing a surface disposed at a right angle to the stacking table for aligning the edges of the pads to be glued. The upstanding tubular posts also support a clamp bar and a pair of pipe clamps for clamping a stack of pads between the stacking table and the clamp bar. Means are provided for securely latching the doors closed for the stacking operation and open to the side of the stacking table for the gluing operation. The tiltable rack is latched in a working position and gravity secured in a stacking position by a stop rod pivoted on the underside of the stacking table.

Abstract: Baling apparatus is disclosed which is capable of baling waste material which is not shredded prior to being fed into the baler. The apparatus includes an enlarged baling chamber with two reciprocal baling heads moving in perpendicular direction, each having a shearing blade fixed thereto which engage each other and a blade fixed to the side wall of the chamber to shear off material extending above the baling chamber.

Abstract: This disclosure pertains to apparatus for compacting trash comprising a compactor head and a portable refuse container having an open upper end positionable below and in substantially vertical alignment with the head. A foot operated treadle, when reciprocally manipulated, causes a relative joining motion between the head and the trash disposed within the confines of the container thereby compressing the trash. A release mechanism disengages the head and the container permitting the container and the head to be separated and the removal of the container from below the head; thereafter, more waste may be inserted in the container.

Abstract: A press for use in an installation for the manufacture of beams made of glued laminae includes an outer, vertically movable frame having a U-shaped configuration in cross section, an inner stationary frame disposed in the space between the sides of the outer frame, and a fluid operated spacer arranged between the inner and outer frame and expansible to force the bottom of the outer frame against the upper edges of the glued laminae to align the upper edges flush with one another.

Abstract: A device for compacting trash and the like comprises a bin having an open top through which the material to be compacted can be passed and walls which define a volume into which the material is deposited. A horizontally disposed, rectangular pressure plate for compacting the material is horizontally driven from a zone horizontally removed from the open top into a region above the volume. The pressure plate is vertically driven between the region and the volume to compact the material in the bin and is returned to the region. The plate is vertically driven by first and second vertical pistons that are respectively positioned to drivingly engage opposite, straight, parallel edges of the pressure plate. The pistons are separately driven by fluid pressure until the fluid pressure acting on one of the pistons reaches a predetermined value.

Abstract: A refuse compactor having a container with a refuse compression space on one side of a pressure plate which is movable by atmospheric pressure, upon evacuation of the refuse space, in one direction through a compression stroke to compress refuse in the space. The pressure plate is movable in the opposite direction through a return stroke by either pressurizing of the refuse space or evacuation of a space, which may be a second refuse compression space, at the opposite side of the plate. The refuse compactor is adapted to be emptied by a conventional trash collection vehicle equipped with a trash bin elevating and inverting mechanism, e.g., a fork lift. The plate includes a wiper for prolonging the life of the pressure plate seal and the compactor includes a novel vacuum pump and valve system for operating the pressure plate.

Abstract: A manually-operated press is provided in which old newspapers in a folded condition may be stacked, pressed into a compact bundle, and then bound into a bale, by appropriate metal binding straps, or the like, and then sold to waste paper collectors. The press comprises a compression box having a fixed bottom and a movable top, and it also has an open front through which newspapers may be stacked in the compression box. A lever-like handle is coupled to the moveable top of the compression box through a linkage system. The mechanical advantage of the linkage system is a function of the handle angle, and is non-linear. At the beginning of the downward stroke of the handle, the mechanical advantage of the linkage is a minimum and is just sufficient to cause the air to be squeezed out of the stack of newspapers placed in the compression box as the handle is lowered.

Abstract: An improved padding press for holding under pressure a plurality of sheets of paper and cardboard backers while the backs are being glued together to form individual pads, providing a support rack, a pressing mechanism and a plurality of insertable padding racks which enable said support rack and pressing mechanism to be utilized continuously in the padding process. While pads in one insertable padding rack are being glued and dried, another batch can be aligned and pressed in another insertable padding rack.