Abstract: An apparatus for jointing CV cables includes a lock mechanism which closes a split portion of a mold, used for extrusion-molding and opens the split portion by heat when crosslinking is performed.

Abstract: Extrusion of a mixture of vegetable bits with a binder, particularly wood chips with a weather-resistant binder, involves precompressing in a compression chamber of an extrusion press the mixture by a compression stroke transverse to the extrusion axis, the compression stroke being delivered by at least one precompression piston. Prior to the precompression elongated bits of the mixture are acted on by an orienting influence so that the elongated bits are deposited substantially parallel to the extrusion axis. The outer layers of the mixture are compressed with a reduced precompression ratio so that the bits oriented prior to precompression remain fixed in position during the subsequent extrusion stroke.

Abstract: A compression molding apparatus comprising a rotary compression molding means, a material feed means and an article carrying means.

Abstract: A method of re-shaping polyimide and modified polyimide foam sheets into selected shapes. Polyimide foam sheets can be made by any of a number of methods, some of which produce sheets of selected thicknesses directly and others of which produce blocks or buns of foam which are sliced into sheets. A sheet is placed in a mold having the desired configuration, such as a half-pipe. The sheet is compressed to about 0 to 99% of the original thickness with heating of one or both major surfaces of the sheet to a temperature of from about 250.degree. to 320.degree. C. for about 0.5 to 5 minutes. Upon removal from the mold, the polyimide foam is found to be self-supporting and to have taken on the mold shape. A moisture impervious densified skin is found on the heated side(s).

Abstract: A time curing press includes an upper mold part which is movably arranged by means of long-stroke cylinders relative to a lower mold part. Extending at a central area of the upper mold part and connected thereto is a vertical guide bar which is supported in a headpiece of the frame of the press. The guide bar is provided with a vertically adjustable not which is engaged by clamp jaws to lock the mold, i.e. the upper mold part with the lower mold part in the closed position of the press.

Abstract: Injection or transfer molding of plastic is performed in a manner that virtually eliminates flash. Deflection of the mold press is measured with the mold press in a clamping configuration. Then the support structure of the molds is arranged to apply an equal force to the mold face by configuring supporting pillars and bars such that they act as individual springs. Their spring constants and/or lengths are calculated to account for the actual deflection found in the mold press, thereby, producing a uniform pressure on the molds during clamping of the press.

Abstract: An apparatus for the production of hollow bodies by blow molding is made up of a locking unit mounted on a bottom stand including a first and second mold support element, each carrying one half of a mold. The two mold support elements are kinematically coupled together by a synchronizing mechanism and fastened to guide spars, with the second mold support elements being displaceable parallel to the first mold support element.In order to prevent the deflection of the guide spars under the effect of the locking pressure leading to the gaping apart of the mold support elements, the locking unit includes a rigid support frame which relieves the bending stress on the guide spars. The guide spars carrying the locking unit are supported on the bottom stand in an axially displaceable manner.

Abstract: A hermetically sealed capsule (10) containing degased metal powder (11) is embedded in a soft metal flow die (20). Subsequently the flow die (20) is compressed in a cavity block, thereby compressing the metal powder (11) by the hydrostatic pressure of the flow die and simultaneously shaping the said powder. This results in the reforming of the structure right down to the interior of the particles with compression of up to 100%. The shaping process can be aided by moulding dies (17, 18) embedded in the flow die (10) around the capsule (10) at a distance from each other and, when closed, forming a cavity, the shape of which deviates from that of the original shape of the capsule (10). The capsule (10) containing the metal powder is formed during closure of the moulding cavity.

Abstract: The quality and useful life of curing bladders used in standard "Bag-O-Matic" tire vulcanizing presses is greatly improved by replacing the standard split two-piece core of the bladder mold with a unitary core which forms a disc-like rubber diaphragm below the core and integral with the rubber curing bladder at the periphery of the core. A unique base plate fits in the lower mold half below the core and has a grooved upper surface to hold the diaphragm in place so that the core can be removed manually or automatically with the assistance of internal air pressure.

Abstract: Mold and method of compression molding shell half covers around a core to form golf balls. Opposed dies are pressed together such that some of the material trapped between the approaching dies is forced back into the mold to compensate for shrinkage and the remainder is forced outside of the die cavities where it can be drained off.

Abstract: Stamper plates and backing plates in a tool for the pressing of video discs are recessed to permit the formation of an annular ridge which encircles the information region of a disc and is provided for use in the mechanical removal of a disc from its container. Apertures in an annular recess in a stamper plate are aligned with apertures in the associated backing plate to lead to a manifold which communicates with atmosphere. Air which may be present in the ridge of plastics material during the pressing operation thereby escapes to atmosphere, and blemishes in the ridge due to air entrapment are substantially avoided.

Abstract: A method of making an energy-absorbing shock cell for mounting bumper devices on legs of offshore oil rig structures having inner and outer metal tubes connected by an intervening vulcanized rubber sleeve maintained under compression adhesively bonded to the inner and outer metal tubes. The shock cell is made by a series of operations in which portions of the metal tubes are coated with adhesive material, and the rubber sleeve is bonded to the adhesive coated areas by vulcanization and post-vulcanized heating.

Abstract: Between a pre-shaping device and a pressing device for tampons there is interposed a delivery device. The longer parallel legs of the L-shaped pressing jaws are set at a distance which corresponds to the diameter of the tampon. The shorter legs of the pressing jaws are oriented towards the longer leg of the other pressing jaw. The width of the pressing jaws corresponds at least to the length of the tampon and of the withdrawal cord. The delivery device is arranged for reciprocating movement transversely of the pressing jaws and has a transmitting channel which corresponds to the opened pressing device as well as a receiving channel which corresponds to the closed pressing device. Also interposed along with the delivery device, and in alignment with the transmitting channel, there is a transmitting device, and there is also a transmitting device in alignment with the receiving channel and the ejecting channel.

Abstract: An equipment for the volume-reducing treatment of a radioactive waste is disclosed. The equipment comprises means for drying and milling radioactive waste liquor, waste sludge, waste resin and the like generated from an atomic power plant, means for pelletizing the powder obtained from the drying and milling means and means for charging the pellet thus formed into a drum. The pelletizing means is a roller press consisting of a pair of press rolls, each having plural pockets formed on the surface thereof. Air vent grooves are also formed on the surface of each press roll so as to extend from the pocket in the rotating direction of the roll.

Abstract: A pastry and dumpling maker for shaping and forming filled pastries, such as dumplings and the like, including a pair of cooperating mold sections which define therebetween a particular pastry shape to be formed. The mold sections are relatively moved into cooperative engagement with each other after the pastry is formed. A flexible strap is suspended above the mold sections and supports a dough skin with a filling placed thereon. As the mold sections are brought into cooperative engagement, a center portion of the flexible strap, together with the dough skin and filling, move downwardly between the mold sections, whereupon the dough skin is folded over the filling and sealed by the mold sections into the particular pastry shape. The shaped pastry is then removable upon separation of the mold sections.

Abstract: The present invention concerns a device for shaping and forming a rice body for a rolled sushi dish. The device comprises a base member provided with a plurality of semi-cylindrical notches in a parallel arrangement, a push cover member constructed in a similar but symmetrical form to the base member, a cylindrical frame member of the size into which the above two members can be horizontally inserted, and a ram member of the size engageable with inside of the frame and provided on the lower side thereof with plural projections in a parallel arrangement. The device is used by inserting the base member having plural semi-cylindrical notches from below into the frame for engagement, placing a suitable amount of vinegared rice (sushi-meshi) into the cylindrical frame, fitting the ram member from above into the frame to make a dent upon the surface of the vinegared rice, placing such suitable ingredients as pieces of tuna, ham, cucumber, etc.

Abstract: A fixture for evenly distributing a predetermined clamping force about annular mating surfaces of a two-piece lens casting mold for avoidance of unwanted cast lens prism and/or edge flash.

Abstract: This invention relates to an apparatus for forming soft and sticky food material such as kneaded mixture of water and rice flour, wheat flour, etc., into globular shape in formation chambers in the form of pipe. Four crossing members constitute one group and create a formation chamber in the form of pipe. The crossing members on one side of the formation chambers are made to reciprocate in the opposite directions to those on the other side thereof, while touching, whereby the material is kneaded into globular shape,.

Abstract: An improvement in molding devices is disclosed which has particular application in the formation of round rubber objects. The cavity cups in one mold plate are made of greater than hemispherical dimension whereby all of the balls will remain in one of the plates when the plates are separated. A flash removal system is also disclosed.

Abstract: A process for the continuous extrusion of electrically conductive granulated materials, preferably powder metallurgy mateials, wherein the material is introduced into a duct of a die and is compressed and moved along the duct to and through a nozzle on the die by a punch movable in the duct, the material being sintered by heating it with electrical current passed therethrough via electrical connections made with the punch and nozzle.

Abstract: The invention relates to a mold for the production of dishes from powdered ceramic materials wherein two coaxial cylindrical dies are displaceable to generate with their end facing walls a cavity to be filled with the powdered ceramic materials, said cavity being peripherally completed by a displaceable die-box provided with a vertical conduit through which the ceramic material is fed into said cavity. An auxiliary die-box is provided sideways on said die-box, displaceable at least along one of said cylindrical dies, the lateral facing walls of said die-box and of said auxiliary die-box (16) being provided with annular grooves that in the closed condition of said lateral walls generate an annular cavity that may be registered in correspondence with said first-mentioned cavity of the mold, radially prolonging the latter and forming the peripheral border of the dish to be produced.

Abstract: An apparatus for molding recorded discs includes a pair of mold plates having opposed surfaces on which stampers can be mounted. A separate center hold down member fits into an opening in each mold plate to secure the inner edge of the stamper to the mold plate. At least one of the center hold down members has indicia forming means on its surface, either as raised projections or indentations in the surface, to form a desired indicia in the surface of the disc as it is being molded.

Abstract: An upstroking compression moulding press includes a pair of side frame members to support an upper, fixed platen which is pivotably supported between said members, said platen having locking means thereon comprising a bar extending over at least the thickness of both of said sideframe members and the distance between them, together with means for displacing said bar from a first position in which it is spaced from said members and a second position in which end portions of the bar are received in notches in said members.

Abstract: A movable piston having a hemispherical face carries a charge of food out of a fixed cylinder member into a coaxially aligned movable cylinder member and against a hemispherical face of a fixed piston member to form a spherical food ball. The movable piston and the movable cylinder member are then retracted to release the food ball.

Abstract: A pressing machine arrangement, comprising at least two dies defining a molding cavity is described.The main feature of this machine is to comprise means for adjusting the thrust pressure exerted at least on one of the said dies (22, 255), substantially in every region of the said dies, in order to maintain substantially mating, during the stage of maximum thrust, the contours of the said dies (22, 7, 255, 332) which define the said molding cavity, by means of an analogous deformation for the said two dies. Said means comprise a cylinder (77, 213) whose head (76, 216) acting into the said dies has a relatively reduced thickness, so as to allow its deformation.

Abstract: A die assembly includes relatively movable first and second dies, and a plurality of guide pin assemblies mounted on the first die and an equal plurality of aligning passageways formed in the second die for receiving the respective guide pin assemblies. Each of the guide pin assemblies includes a first section mounted within the first die, and a second aligning pin section connected to the first section. Each aligning pin section extends above the surface of the first die for entering one of the plurality of aligning passageways for aligning the first and second dies. Each aligning pin section is detachably connected to a first section and is detached after the first and second dies have been aligned and are ready to be used. In this manner, when the first and second dies are differentially heated during use, the problem of scoring or damaging the aligning pin sections is avoided.

Abstract: 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.

Abstract: Apparatus for inelastically deforming an initially flat blank of a corrugated fiberboard, comprising two die blocks movable relative to each other and having complementarily convex and concave pressing surfaces and blank retaining means adapted to clamp opposite marginal portions of a blank of a corrugated fiberboard being warped between the die blocks with the marginal portions urged sidewise inboardly of the die blocks, the blank retaining means being operative to restrain the blank from being moved in a direction parallel with the marginal portions but to allow the marginal portion of the blank to move the marginal portions of the blank sidewise inboardly of the die blocks in a direction perpendicular to the marginal portions so that not only production of creases in curved portions of the blank but production of fissures as would be caused if the blank is excessively stretched between the opposite marginal portions of the blank are precluded.

Abstract: An apparatus for compressing powder material into at least partially spherical articles, comprising a die and upper and lower reciprocally movable punches. The die has a center bore through which the lower punch is reciprocable. The wall at the upper part of the die bore is enlarged to form a spherical zone portion of a hemispherical cavity. The end face of the lower punch has a concave shape to form a segment of the hemispherical cavity when the face of the lower punch is flush with the die cavity wall. The lower face of the upper punch defines a hemispherical cavity which mates with the hemispherical cavity of the die. In operation, the bore and die cavity are charged with powder material and the upper punch is brought into engagement with the die. A compaction stroke by the lower punch then forces the powder material into the spherical cavity. The upper punch is then withdrawn and the compacted spherical article is removed from the die.

Abstract: This disclosure relates to a retreading mold which includes a pair of relatively movable platens, means for supporting the platens during relative movement therebetween, means for imparting relative motion to the platens between spaced open and closed positions thereof, a matrix carried by each platen, the motion-imparting means including a reciprocal member, and means between the reciprocal member and one of the platens for effecting self-centering between the platens in the closed position thereof, the self-centering means preferably being defined by a curved surface between one platen and the reciprocal member.

Abstract: A moulding apparatus including a pair of mould cavities with locking spue grooves, means to form moulded rubber article parts in the cavities, means to prework the rubber without substantial curing before it is formed, means to pressurize the mould with gas and means to bring the mould cavities together to join the article parts. The arrangement for pressurizing the mould includes a retractable casing which is movable between a position in which the mould cavities are enclosed to permit their pressurization and a position in which the cavities are accessible outside the casing.

Abstract: A high pressure/temperature device comprises two complementary dies with recesses in locking surfaces thereof, the recesses forming a reaction chamber accommodating a reaction mass container. Radial slots in the die locking surface are intended for disposing therein electric conductors connected to a measuring element, e.g. a thermojunction, incorporated into the reaction mass.

Abstract: Electric cooker has cover containing electric heating element and base pan interposed by an invertible grill. Grill is formed with mating zones, preferably grooves, about either side to cooperate with a depending rib from the cover. Opposite faces of the grill present respectively a circular dam for hamburgers or the like, and a rectangular dam for sandwiches. Irrespective of which face is up and serving as a cooking surface, cooperation of rib and associated mating zone provide good heat transfer to grill from cover.

Abstract: A method of producing hot pressed products, especially products of complex shapes, wherein the material from which the component is formed is hot pressed between a plurality of die parts of which at least one is of substantially uniform density and substantially compressible. This enables the shape of the die part to conform exactly or nearly so to the shape of the body being sintered throughout hot pressing, thereby resulting in obtainment of products of complex shapes.

Abstract: The invention relates to a roll briquetting press having a preconnected feed arrangement including a multiplicity of juxtaposed screw conveyors.

Abstract: A clamp for holding together the portions of a mold used in molding solid objects from a reacting liquid such as polyurethane has a C-shaped frame which is pivotally mounted on a pedestal to swing through an arc. The C-shaped frame of the clamp consists of an integral structure having an upper jaw connected by a column to a lower jaw. The frame supports a bed, crown and platen. The bed and crown are each a plate-like member that is mounted to pivot relative to one of the jaws. The platen is mounted preferably on the bed or lower one of such members. The mold portions are mounted on the crown and platen with the parts being arranged to move so that the mold portion engage and disengage. The invention also includes a method of molding wherein the mold portions are engaged and disengaged by a process that involves pivoting at least one and preferably both of the portions relative to the C-shaped frame.

Abstract: An electric cooking appliance has a base which removably supports a lower cooking element in its open top. The appliance has a cover which is removably hinged to the base. This cover contains an upper cooking element provided with a depending rib which contains a heating element and interfits with a provided channel in the lower cooking element when the cover is closed against the base. The lower cooking element has a handle and is provided with apertures through which fluids from the cooking food can drain into the base. The base and cover also have recessed handles which engage about the handle of the lower cooking element and a bail is provided which releaseably locks the handles together to assure an effective transfer of heat through the conductive metal of the rib to the two cooking elements such that a hamburger or other food positioned between the two cooking elements can be simultaneously heated from both sides by the one heating element with the cover closed against the base.

Abstract: In accordance with the present invention a positive pressure mold is provided wherein the mold cavity is sealed during the initial movement of the dies. The entrapped air is caused to escape at a controlled rate as the dies move together, building up a sufficient air pressure between the dies to distribute the workpiece or "preform" throughout the die cavity.

Abstract: An assembly attachable to upper and lower bases of a phonograph record pressing die includes:A. upper and lower die frames, the upper die frame attachable to the upper base, and the lower die frame attachable to the lower die base, andB. upper and lower die faces, the upper die face attached to the upper frame, and the lower die face attached to the lower frame, the upper die face directly overlying the lower die face to press a phonograph record therebetween,C. there being a first set of fluid passing grooves formed in at least one of the upper frame and upper face and exposed to the other thereof, and another set of heat transfer fluid grooves formed in at least one of the lower frame and lower face and exposed to the other thereof.This is a continuation of application Ser. No. 469,387, filed May 13, 1974, now abandoned.

Abstract: Machinery for manufacturing a record which includes a first stamper and a second stamper. Means are associated with each stamper for cooling the stampers so the outer periphery of plastic that is formed into a record between said stampers solidifies and there is a minimum amount of flash.

Abstract: A clamp for holding together the portions of a mold used in molding solid objects from a reacting liquid such as polyurethane has a C-shaped frame which is pivotally mounted on a pedestal to swing through an arc. The C-shaped frame of the clamp consists of an integral structure having an upper jaw connected by a column to a lower jaw. The frame supports a bed, crown and platen. The bed and crown are each a plate-like member that is mounted to pivot relative to one of the jaws. The platen is mounted preferably on the bed or lower one of such members. The mold portions are mounted on the crown and platen with the parts being arranged to move so that the mold portion engage and disengage. The invention also includes a method of molding wherein the mold portions are engaged and disengaged by a process that involves pivoting at least one and preferably both of the portions relative to the C-shaped frame.