Abstract: A process for the production of industrial tubes or section bars from metal, such as copper, copper alloys, special brasses, cupronickel or aluminum bronzes, includes the following steps: melting the metal material with possible compatible working scraps; obtaining a preform from a casting; roll milling and/or drawing the preform to reduce its section; drawing with one or more concatenated intervention the roll-milled and/or drawn preform, in order to further reduce its section to the size desired; straightening and possibly submitting to thermal and/or decreasing treatment the dimensionally finished product; and cutting the finished product to measure.

Abstract: A clamping assembly for providing lock-up pressure between die blocks of a die cast machine includes at least one tie bar engagement mechanism adapted to releasably engage a tie bar of a die cast machine, thereby preventing the tie bar engagement mechanism from sliding with respect to the tie bar. The clamping assembly also includes at least one hydraulic piston assembly having a first end and a second end, wherein the first end is adapted to apply pressure to a die block of the die cast machine when the piston assembly is extended, and wherein the second end abuts the tie bar engagement mechanism when the tie bar engagement mechanism is engaged with the tie bar and the piston assembly is extended.

Abstract: A permanent mold casting system has a modularized architecture and remote placement of certain portions of the casting system. The casting system has a frame and a casting module supported on the frame is adapted to receive a plurality of molds for casting articles from a fill material according to a casting process. The casting module includes first motive actuators for moving at least portions of the molds during the casting process. An accessories module is supported on the frame and comprises at least one accessory device and second motive actuators for selectably positioning the accessory device in relation to the casting module. A utility module is located remotely from the frame and comprises motive power supplies coupled to the first and second actuators. The utility module also comprises a programmable controller coupled to the motive power supplies for controlling the casting process.

Abstract: A pressure die casting machine is provided for processing fused metals in which the die locking unit is mounted adjustably on a lifting frame that can be vertically raised or lowered to adapt the die locking unit to the casting nozzle via lever sets and a common mechanical adjusting device for these lever sets. This arrangement achieves a space-saving arrangement with a simplified design.

Abstract: A multiple-slide die-casting machine is equipped with improved mechanical structure and unique injection control system to improve the quality of molded products, to achieve flash free castings of improved surface finish. The clamping assemblies are mounted on one side of a base plate of the machine for applying clamping force to the mold sections in a preloaded state. A reinforcement ring interconnects the clamping assemblies to inhibit deflection of the base plate and the brackets which support the clamping assemblies so that an accurate parting line between the contacting surfaces of mold sections is insured.

Abstract: A toggle mechanism is supported at the front face of the housing and a forward end of the toggle mechanism is connected to a back face of the movable platen. Upon the closing and opening of dies, the toggle mechanism is stretched and contracted to move the movable platen forward and backward along the tie bars. An automatic control device calculates, before the dies are mounted, from a die thickness input and the kind of the dies input, such a stop position for the link housing as impart a target value to the stretching/contraction amount that the toggle mechanism has when the dies are in closed state, and calculates, from the kind of the dies input, an appropriate contraction amount greater than the target value, and the automatic controlling device moves the link housing to the stop position calculated and the toggle mechanism by the appropriate contraction amount calculated.

Abstract: An expandable mold for use with metals that expand during solidification with the expandable mold having sidewalls that are forcibly laterally separated to thereby expand the mold cavity sufficiently so as to free at least one portion of the cast article from an interference fit with a first portion of the mold to thereby enable removable of the cast article from an interference fit with a further portion of the mold without fracture of the cast article and for forming a smooth surface finish on the cast article.

Abstract: A die casting apparatus comprises a pair of mold assemblies which include molding surfaces cooperating to define a first mold cavity therebetween for casting a first portion of a cast object in the first mold cavity. One of the mold assemblies comprises a fixed mold core, and a movable mold core movable with respect to the fixed mold core along a core axis between a closed position and an open position. The mold cores include casting surfaces disposed such that in the closed position the casting surfaces cooperate to define a second mold cavity therebetween extending transversely to the core axis and in communication with the first mold cavity for casting a remaining portion of the object integral with the first portion, while in the released position the object is substantially released from the one mold assembly.

Abstract: The current invention replaces the toggle clamping mechanism of known die casting machines with a hydraulic clamping mechanism. Advantageously, the machine with hydraulic clamps requires less space than the machines utilizing toggle clamping mechanisms. The machine of this invention has a significantly smaller footprint, takes up less space and is about 30% shorter than machines with toggle clamps. The hydraulic clamping mechanism of the current invention not only decreases the size of the casting machine, but also produces uniform clamping force. The hydraulic clamp according to one presently preferred embodiment of this invention is a hydro-mechanical clamp.

Abstract: An attachment apparatus for a heater for attaching the heater, which is configured in an almost circular shape in its side view and cut at a circumferential portion thereof to form opposite circumferential end portions, to an external peripheral portion of a heated member of a cylindrical or column shape, includes a pair of stop metal members fixed near the circumferential end portions of the heater and a spring, both end portions of the spring engaged with the stop metal members in a state being pulled by the stop metal members with a predetermined tension, respectively, the opposite circumferential end portions of the heater are attracted to each other and so the heater is elastically adhered to the external peripheral portion of the heated member.

Abstract: A die-clamping system has a die and a clamping means. The die includes a first engaging portion in a first predetermined shape. The die is transferred in a first direction from a first position toward a second position. The clamping means has a second engaging portion in a second predetermined shape that is complementary to the first predetermined shape. The second engaging portion of the clamping means at the second position completes engagement with the first engaging portion by the time when the die arrives at the second position in the first direction.

Abstract: A die casting machine has a divisible die casting tool. To be able to die cast in a secure manner large die-cast parts beyond elasticity-caused limits of the machine construction, the locking pressures for the die casting tool are transmitted by tool-integrated tie rods into a power flux circuit remaining within the die casting tool. In the closed condition of the die casting tool, the tie rods can be anchored in a tension proof manner on both sides of its mold parting surface in the die casting tool and, for the opening, can be detached at least from one of the tool parts of the die casting tool. For limiting the flow paths of the molten mass, several casting cylinders for feeding the casting material into the casting mold are distributed thereon so that the casting mold can be filled simultaneously from several points.

Abstract: A mold has outer mold parts and inserted molding material cores. Together, the parts and cores form a mold cavity. The inner cores of molding material are arranged in several layers one above the other. The inner cores are clamped in between the outer mold parts and a final covering core of mold material. A continuous clamping force is applied between the parts and cores. The mold cavity is formed by surfaces of the outer mold, surfaces of the inner cores and the covering core.

Abstract: A vaporizable refractory coated pattern assembly is formed having a sprue connected to a plurality of thin wall patterns of articles to be cast. The pattern assembly is supported in a refractory particulate media in an open bottom container that is evacuated to subambient pressure and rotated in a manner to distribute particulates to regions of the refractory coated patterns not yet directly contacted by particulates. The pattern assembly is comprised of relatively dense foam plastic pattern material that imparts increased strength to the thin wall patterns. The sprue includes a vent passage that communicates to a particulate media to vent pattern decomposition vapors thereto in a manner that enables faster replacement of the pattern assembly in the media, despite the use of the relatively dense pattern material.

Abstract: A mold for casting a vehicle wheel includes a movable top core which cooperates with a base member to define a mold cavity. The mold also includes a plurality of movable segments mounted upon the top core. The movable segments define a central gate which communicates with the mold cavity. The central gate receives a charge of molten metal and feeds the charge into the mold cavity. A porous filter is disposed within the gate.

Abstract: An apparatus for casting molded parts includes a casting mold having a lower core, an upper core and pushing elements, which, in a first end position, are in contact so as to form a hollow space into which a liquid casting mass can be introduced during a casting process. The upper core, which rests against the inside of the molded part is displaceable in an insertion direction in order to remove the molded part comprising a hardened casting mass. The upper core has a jacket surface and a bore that extends at a predetermined angle with respect to the insertion direction. An actuating element is displaceable in the insertion direction. An undercut pushing element is coupled to the actuating element via a crossbeam and has a front end that is movable between first and second end positions.

Abstract: A quick-change tie bar mechanism includes an actuator having a rod coupled to a first bearing member and a body coupled to a second bearing member. The first and second bearing members are configured to reciprocally move in opposite directions in response to extension and retraction of the rod relative to the body. The bearing members have a first configuration for engaging a nut threaded on a tie bar to fix the tie bar in relation to a platen through which the tie bar extends. The first and second bearing members also have a second configuration for releasing the tie bar to permit removal through the platen so that a part may be accessed for removal and/or replacement.

Abstract: A method of fastening core elements together without the use of foreign agencies, such as adhesives, screws or other such fasteners, uses the same core sand and resin that form the core elements themselves. Core sand elements are retained in an assembly by bodies of cured core sand and resin in holes or cavities that span the interface between the core elements and fasten the core sand elements together. Core sand elements are provided with alignable holes, or cavities, into which a mixture of core sand and a curable resin, preferably the same resin used in forming the core sand elements, is added and the curable resin is cured to provide a body of cured core sand and resin, preferably adhering to the core sand elements, fastening the core sand elements together.

Abstract: A die-casting assembly includes a ram and a ram adapter that is connected to the ram. The die-casting assembly further includes a mould holder and a mould that is connected to the mould holder. An attachment device includes a clamp cylinder having an end that removably connects the mould holder to the ram adapter. The mould holder includes a clamp ring that defines a radially projecting engagement flange. The upper mould holder includes a body segment having an upper surface that is removably connected to the clamp ring in a plurality of angular positions. When the clamp ring is damaged during use, the clamp ring can be loosened, rotated relative to the body segment, and tightened to the body segment without requiring repair or replacement. The clamp ring is annular and includes a first plurality of axial bores that provide access to leader pins that are connected to the body segment.

Abstract: A mold wall of a continuous casting mold includes an inner mold plate and a water box connected to the inner mold plate through screw connections, wherein the inner mold plate has on its side facing the water box webs with grooves extending between the webs, and wherein filler pieces are arranged in the grooves. The filler pieces each have at least one expanding element for producing a frictionally engaging connection of the filler pieces to the inner mold plate. The screw connections are arranged between the water box and the filler pieces.

Abstract: An improved method and apparatus for use in semi-solid molding. A hydraulic clamping mechanism producing substantially equal clamping force on the four comers of a moveable platen is utilized to clamp a pair of die halves together to form a die cavity for use in semi-solid molding. In one exemplary embodiment, clamping force is created when a plurality of retractable tie bars affixed to a moving platen are locked to a stationary platen and hydraulic pressure is utilized to tension the tie bars.

Abstract: A continuous casting installation comprises an ingot mould and an oscillating holding device used for causing the ingot mould to swing when in a casting position. The installation consists, in a separable manner, of an interchangeable part and a stationary part. To replace the intechangeable part, it is separated from the stationary one and moved using a conveying means, at least along a partial path, from its position of operation into an area beneath the casting position. This enables, especially in the multiline casting installations, the interchangeable part to be transported during the casting process and, for example, along paths comprising straight or arciform segments, to any purposefully selected position and to be replaced by a new interchangeable part to be replaced in multiline installations with no interference with the casting process in any adjacent ingot arrangement.

Abstract: A pressure casting apparatus for molding sanitary articles which comprises a frame member, a lifting mechanism mounted in said frame member for up and down movement relative to said frame member, a plurality of molds positioned adjacent to each other and below the lifting mechanism, each mold being constructed form two lateral mold components which extend laterally from adjacent locking rods, an upper mold component and a lower mold component, said upper mold component being suspended from the lifting mechanism, the lateral mold components extending from opposite sides of the locking rod, and the lower mold components being disposed below said lateral mold components, said lateral mold components and said lower mold components being mounted for lateral movement within said frame members, and means for laterally compressing the lateral mold components and the lower mold components together, whereby the lateral mold components extending laterally from adjacent locking rods and an associated lower mold component

Abstract: An assembled mold base member for a wheel component includes a universal base support member which is combined with one of a plurality of interchangeable center members to form an assembled mold base. The assembled mold base cooperates with an assembled top core having an interchangeable end member combined with one of a plurality of universal top core members and side members to form the wheel component mold.

Abstract: A spring unit for a core pin assembly for use in molding and die casting apparatus which can be installed in and removed from a mold section as a single unit.

Abstract: A tiebar removal method and apparatus for tiebar removal in a two (2) platen injection molding machine wherein some of the tiebars may be removed while others remain in the injection molding machine.

Abstract: A mold base kit including plural plates having alignment bores for receiving guide dowels for accurately aligning the plates with respect to one another as a mold frame is assembled from the kit. Each guide dowel includes a hollow, cylindrical sleeve sized to fit snugly in the alignment bores of adjacent, abutting plates and also includes an abutment member extending radially outwardly of the guide dowel sleeve intermediate its ends which prevents the guide dowel from moving a substantial distance along an alignment bore. The abutment member may be formed by a circular piece of spring wire which extends through an arc of more than 180.degree. around the outside of the dowel sleeve, and preferably approximately 270.degree. around the sleeve. Because the retainer clip extends less than completely around the sleeve, its ends can readily be spread apart for assembly of the retainer clip onto the sleeve.

Abstract: A rotor core (12) of a squirrel-cage rotor of an induction motor is housed in a recess (14) of a mold (18) of a conductor casting apparatus (10). A composite cylinder device (68) is fixed on the upper side of the mold (18) or on the side remoter from the pouring gate thereof, and the rotor core 12 is held in a predetermined position in the recess 14 by one piston (70). The other piston (72) locally pressurizes a molten metal that fills an end-connector ring cavity (66) defined between the rotor core (12) and the recess (14) on the side remoter from the pouring gate.

Abstract: A die casting machine has obliquely slidable die core pieces in an ejector holder block. The ejector holder block may be drawn away from the stationary die half into abutment with an ejection box by linear actuators; complementary male and female surfaces on the ejector holder block and ejection box precisely locate the ejector holder block with respect to the ejection box when the two are in abutment. The ejection box and mated ejector holder block may then be moved into abutment with the stationary die half to complete a die cavity.

Abstract: A frame for a die casting machine, including a first side, a second side, a toggle endpiece and a die endpiece opposite the toggle endpiece, one of the first and second sides having an upper frame member with a die end and a toggle end, the die end being releasably secured to the die endpiece, and a lower frame member integrally joined to the die endpiece and the toggle endpiece, the other of the first and second sides having upper and lower frame members integrally joined to the die and toggle endpieces.

Abstract: A die assembly for squeeze casting an article includes a two-piece first die section including a densifying die member and a base die member and a second die section. The first and second die sections define a die cavity therebetween having the shape of an article to be cast. The die sections are movable between an open position and a closed position in which the die cavity can be filled with an accurately controlled volume of molten material. The densifying die member is movable relative to the base die member from a first position to a densifying position in which the densifying die member is spaced apart from the base die member to accurately reduce the volume of the die cavity when the first and second die sections are in their closed position and the die cavity is filled with molten material.

Abstract: A die cast mould apparatus having a base for supporting a mould body partially defining a mould cavity. A mould body insert is insertable in the partially defined mould cavity and may be locked in this position to complete the mould cavity. The mould body insert is mounted on a retainer which is mounted in a channel, in a support extending from the base. The retainer may be locked to the support in the channel by way of interlocking wedges on the retainer and wedge receptors in the channel walls of the support, thereby locking the insert in the position to complete the mould cavity.

Abstract: A die space access system for tie bar style die casting machines. The system provides improved access to the die space of tie bar style die casting machines for installation and removal of dies by permitting a tie bar to be withdrawn horizontally with respect to the machine, thus creating an unobstructed access window to the die space. The system comprises a vertically movable spit clamp with an interiorly grooved circular bore. The bore mates with the grooves on the exterior of the tie bar. The system further comprises a frame fastened to the outside surface of the shot platen of the die casting machine. The frame has pairs of first and second hydraulic cylinders which control the split clamp.

Abstract: A foundry die casting machine for the small and medium-scale production of metal parts, having at least two die cheek parts for receiving molten materials, wherein the die cheek parts form a cavity, a framework having a supporting wall for supporting the die cheek parts, at least one cheek-moving jack having means for supporting and displacing the die cheek parts, which permits removal of the metal parts, at least one removable coupling member, wherein an end of the coupling member is removable and directly supported by a die cheek part and the other end is removably connected to the cheek-moving jack, at least one cheek-moving jack carrier mounted on said framework, at least one hollow-formation reservation member for insertion into the cavity, at least one reservation member-moving jack having means for supporting and displacing the hollow-formation reservation member, and at least one removable reservation member-moving jack carrier, wherein an end of the latter is removably and directly supported by one o

Abstract: Exothermic welding apparatus includes a toggle frame jig for supporting vertically split molds. The toggle includes a post projecting parallel to the main pivot of the jig on which telescopes a crucible support. The crucible support includes a handle extending above the crucible when secured to the support. A quick acting toggle connects the support and post enabling the crucible to be assembled, cleaned, or prepared remote from the molds and then quickly installed and locked in position.

Abstract: A vertical die casting press includes a frame supporting a stationary lower horizontal platen which supports a base plate attached to a lower mold. An upper horizontal platen is supported for vertical movement between vertical columns by corner lift cylinders mounted on the lower platen, and the upper platen encloses hydraulic cylinders for actuating blades for releasably locking the upper platen to teeth on the vertical columns at a selected height. The upper platen carries a relatively movable intermediate platen which supports a base plate attached to an upper mold. After the upper platen is locked to the columns, a hydraulic load cell or cylinder within the upper platen clamps the intermediate platen and upper mold to the lower mold and lower platen.

Abstract: A wax pattern molding process, employing a mold having a cavity and a core structure in the mold cavity that include closing the mold with the core structure positioned in the mold cavity; injecting flowing heated wax into the mold to flow about the core; allowing the injected wax to cool and solidify to form the wax pattern; removing the core structure from the solidified wax pattern, while the mold holds the pattern in position in the mold; and opening the mold and removing the unencumbered wax pattern from the mold.

Abstract: A method for preparing an engine block casting having integral cylinder bore liners (10). A barrel slab core (14) includes barrel cores (18). Bore liners (10) surround the barrel cores (18) and are fixed in relation to the barrel slab core (14). A cylinder block mold core package (22) is assembled from the barrel slab core (14), and other cores (24, 26, 28). The liners (10) are heated while they are within the cylinder block mold core package (22) by induction heating. Access holes (30) are defined within the barrel slab core (14), each access hole (30) communicating with the interior of one barrel core (18). A heater (32) is inserted through each access hole (30). Thermal energy is thus transferred across the barrel core (18) to the cylinder bore liner (10) to assure optimum integrity of bonding between a solidified cylinder block casting and the cylinder bore liners (10). The heaters (32) are then retracted before adding the molten metal.

Abstract: A casting machine having a mold closing and opening cylinder for moving a movable die plate with a movable die relative to a stationary die plate having a stationary die, and a mold clamping cylinder each having a cylinder housing and a piston which partially define a first and a second fluid chamber whose volumes increase when the movable die plate is moved toward and away from the stationary die plate, respectively, by the mold closing cylinder. The clamping cylinder is connected to a hydraulic circuit, which permits a fluid to flow between the first and second chambers through a connecting line when the movable and stationary die plates are moved relative to each other by the closing and opening cylinder. The hydraulic circuit is adapted to apply a fluid pressure to the first fluid chamber to clamp the movable and stationary dies together after the movable die is brought into abutting contact with the stationary die by the closing and opening cylinder.

Abstract: A piston casting mold for casting all pistons in a single series with little weight variation one from the next, includes spacers of fixed dimensions are employed to locate a dome-forming core of the mold a fixed distance from a stationary portion of the mold from one casting to the next. Increasing or decreasing the dimensions of the spacer permits increasing or decreasing the as-cast weight of the piston.

Abstract: A frame for manufacturing die cast parts comprises a cover half and an ejector half cooperating with each other for die casting a part, the cover half and the ejector half having a closed position for die casting the part and an open position for ejecting the die cast part. The ejector half includes an ejector for ejecting the die cast part. The cover half and the ejector half each comprise a plurality of stacked plates that provide first and second pockets, respectively cooperating with each other to form a closed pocket when the cover and ejector halves are in the closed position. A plurality of cooperating mold blocks for defining a cavity for receiving die cast material are removably secured in the closed pocket and internal passageways in the cover and ejector halves are removably connected to the mold blocks for conveying cooling fluids thereto.

Abstract: This disclosure concerns dies for die casting machines having a stationary or cover die and a movable or ejector die which has a movable slide mounted thereon. A tapered trough is provided across the slide and into opposite sides of the movable die, and the cover die is provided with a floating wedge that fits into the full length of this trough for positioning and locking the slide with respect to the movable die on which this slide is mounted. The floating wedge may be held in the cover die by flanges on the wedge which loosely fit in grooves in the cover die. The tapers on the wedge and the sides of the trough are complimentary for locking the movable die parts together when all the die parts are closed for filling the cavity formed by the die parts with molten metal.

Abstract: The apparatus consists of a weight iron (1) with a plane bottom face designed to rest on the top side (3) of the upper mold of a two part sand mold set (2,6), and a clamping plate (4, 5) located at either side of the closed mold parts (2, 6). The bottom face (7) of the lower mold (6) rests on a transport device (8). The apparatus also includes L-shaped arms (9, 10), which pivot with respect to the weight iron (1) and the two side clamping plates (4, 5). The two L-shaped arms (9, 10) are placed opposite to each other in a vertical plane through the mold parts (2, 6). The arms (9, 10) are laterally off-set and pivot with the weight iron (1) at points (16, 17).

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: Differential pressure, countergravity casting apparatus includes a vertically-parted mold stack comprising a plurality of side-by-side mold members disposed on an underlying mold drag. First and second cam shafts are rotatably disposed inside a vacuum box confronting the mold stack and are rotated to engage respective first and second end mold members of the mold stack to clamp the mold stack sealingly together sans glue. Upper ends of the cam shafts extend above the ceiling of the vacuum box and are operatively connected to an actuator linkage for effecting cam shaft rotation in a manner to clamp the mold stack together or in a manner to release the mold stack after casting.

Abstract: A mold clamping apparatus includes a stationary platen, a movable platen, a driving device, a rotational-linear motion transmission mechanism, a braking device, and a mold clamping force applying mechanism. The stationary platen is arranged on a frame and mounts a stationary metal mold for a molding machine. The movable platen is arranged to oppose the stationary platen to move forward/backward with respect to the stationary platen and mounts a movable metal mold. The driving device moves the movable platen forward/backward with respect to the stationary platen. The rotational-linear motion transmission mechanism is arranged between the driving device and the movable platen and converts a rotational torque of the driving device into a linear motion in a moving direction of the movable platen. The braking device is connected to the driving device and brakes a linear motion of the movable platen toward the stationary platen at the end of the linear motion.

Abstract: The mold is equipped with a casting ring 6 which is formed by clamping together four generally rectilinear wall segments 8 that are, first, arranged like the sides of a picture frame about the rabbet 52 of a rectangular case 10, and then abutted together, sash-like, at their mitered ends 80, to form a ring, the casting surface 9 of which will produce the rectangular cross-sectional outline common to sheet ingot or the like, when molten metal is fed through the ring. The clamping action is produced by a set of screws 94 at the corners 10' of the case, and after the ring 6 is clamped about a pair of spaced, axially opposing lips 54 and 60 on the case and an annular plate 14 thereabove, the plate 14 is clamped to the top of the case, to secure the ring in place and seal the axial ends of the ring against fluid flow thereacross.

Abstract: An apparatus and method is provided for producing castings from low melting point alloys which expand upon hardening for use in radiation treatment. An apparatus (10) is provided with a resilient ring (22). As the alloy expands in cooling, the resilient ring deforms outwardly to accommodate the expansion. The molding apparatus (10) can then be disassembled to remove the hardened plate with little risk of harm to the plate.

Abstract: The carriage comprises two sets of motor-driven rollers receiving and expelling the tools or boxes of cores. The carriage further includes a rolling frame having wheels driven by a reduction motor. A further reduction motor is provided in each of two operative sectors of the carriage, which activates a corresponding group of rollers through an intermediary transmission shaft. The carriage also has handling devices for the tools in order to permit and facilitate their periodic cleaning. The handling devices each include a support on which a tiltable arm is assembled, which is activated by a hydraulic cylinder. A plate is positioned on the arm on guides. The plate has clamps to secure the tool or box of cores. The plate is moved by a hydraulic cylinder. The structure may be used for boxes of cores with vertical opening and with the boxes having a horizontal opening as well.

Abstract: A mold which comprises a pair of mating, openable and closeable mold halves and a lock to hold the mold halves together. The lock is defined by a recess in the outer surface of one of the mold halves. A lifting bridge crosses the recess, being proportioned to permit a lifting hook in the recess to pass underneath to engage the bridge. An elongated member is secured to the other of the mold halves, being slidably extendable into the recess when the mold halves are substantially closed. The elongated member defines a longitudinal slot facing outwardly of the recess in closed position to receive at least a portion of the lifting hook as the hook engages the bridge. The slot defines an end opposed to the other mold half which is closed, to prevent a hook portion in the slot from sliding past the opposed end. Thus, the mold in closed position cannot be opened while the lifting hook is present in the slot.