Abstract: An apparatus for forming a flowable material against a prosthetic implant can comprise a mold body having an outer surface and an inner surface. The inner surface can define a mold cavity that is selectively configured to at least partially accept the prosthetic implant in a forming position. An inlet port can be configured on the mold cavity that extends between the inner and outer surfaces. The mold cavity can substantially conform to a profile of a bone opposing surface of the prosthetic implant such that a void is created between the inner surface of the mold body and the bone opposing surface of the prosthetic implant. The inlet port can be configured to permit introduction of the flowable material into the void and against the bone opposing surface of the prosthetic implant.

Abstract: There is provided a method for controlling a powder compacting apparatus including: a die having a hollow; an upper punch and a floating lower punch; a first actuator that pushes down the upper punch; a second actuator that controls a floating load of the floating lower punch; and a stopper that defines a pressurization stop position of the floating lower punch. The powder compacting apparatus is configured such that the first actuator is operated to push down the upper punch to pressurize powder charged into the cavity, and the second actuator is controlled to pressurize the powder such that a load acting on the powder during pressurization becomes a prescribed floating load required to compact the powder. The method includes reducing the floating load in a stepwise manner after completion of the pressurization.

Abstract: A dispensing mechanism that deploys a roll of web material having slit cuts and expands it into a web with a cellular structure. This is accomplished by mounting the roll of unexpanded web material on an axle that is positioned at a first angle to a guide wheel assembly. That first angle is not perpendicular to the direction of deployment. The material moves through the guide wheel assembly longitudinally in such a way that tension is applied at a second angle to the direction of deployment. This diagonal tension causes the web material to expand and form cells. Single axle as well as multi-axle systems are disclosed. In this way, a plurality of rolls of web material may be deployed and expanded as a single unit.

Abstract: A blowing mold array includes a blowing mold unit forming a cavity, inside of which plastic preforms are expanded to plastic containers. The blow mold unit includes a blowing mold retainer having at least two mold retainer elements for accommodating parts of the blowing mold unit, and a locking mechanism to arrest at least one part of the blowing mold unit against at least one mold retainer element. The locking mechanism includes an engagement element that can be pivoted and/or shifted relative to a default axis, which in an arrested state abuts a segment of a part of the blowing mold unit. The locking mechanism has an actuating element to loosen the arrest between the mold retaining element and the blowing mold unit. Actuation of the actuating element is coupled with actuation of the engagement element.

Abstract: The invention relates to an arrangement and to a method for the electromechanical drive for mold closing systems and calibration blow mandrel systems in blow molding machines, wherein the arrangement for the drive of an extrusion blow molding machine includes a push mechanism (3; 11), a push rod (4; 12) and exactly one electric motor (1; 9), wherein the push rod (4; 12) is movable by the push mechanism (3; 11) which is driven by the electric motor (1; 9), wherein the electric motor (1; 9) has an additional braking device (2; 10) which can be activated on the reaching of a required torque or a required force of the electric motor (2; 10) to hold the push rod (4; 12) in a state of maximum tension in its instantaneous position.

Abstract: A mold, for producing molded blocks with at least one lateral face which has a texture, comprises a mold lower part and at least one flexible belt, wherein the flexible belt surrounds at least one mold wall of the mold lower part that delimits a mold cavity of the mold lower part in order to act on the material for producing the molded block that is received in the mold cavity, to impress a texture on at least one of the lateral faces of the molded block, wherein the flexible belt is moveable relative to the mold lower part and is mounted in such a way that the flexible belt moves around the mold wall when the molded block is ejected from the mold cavity. The mold comprises an active auxiliary device by means of which a rolling resistance of the flexible belt can be varied.

Abstract: Disclosed is a device for forming containers and a method for damped closing of a mold carrier unit and a base mold carrier of a blow mold for forming containers. The device includes at least one mold carrier unit for holding blow mold parts and a base mold carrier for holding a base mold and a base mold carrier lift device for moving the base mold carrier in conjunction with the movement of the mold carrier unit. The mold carrier unit includes at least two mold carriers which surround the container to be processed at least during a molding process. The base mold carrier covers a base area of the container to be treated. The base mold carrier lift device includes at least one first damping element for damping and limiting the vertical movement of the base mold carrier in relation to the mold carrier unit.

Abstract: In a tire vulcanizer configured to perform opening and closing of a mold using an efficient ball screw shaft or the like, a top mold mounting member holding a top mold is lifted and lowered by rotating the ball screw shaft with a driving mechanism to vertically lift and lower a ball nut, and the lifting and lowering of the top mold mounting member is stopped by fixing the ball screw shaft by the de-excitation of an electromagnetic brake connected directly to the ball screw shaft, independently from the driving mechanism. According to such a structure, the opening and closing of the mold can be stopped, even if abnormality of the driving mechanism or the brake occurs.

Abstract: A mold rotator with a first section and a second section that are engaged approximately perpendicularly to each other to produce a base and an L-shaped platform for receiving the article. The base of the article rotator may have a curved section at the intersection of the first section and the second section and the article rotator may rotate on its curved section between a first position wherein the article rotator is supported on its first section and a second position wherein the article rotator is supported on its second section. Further, the article rotator allows an article to be safely rotated simply by lowering the article onto the article rotator so that the article rotator automatically rotates approximately 90° from a first position and a second, rotated position. The article rotator may include a stabilizing system wherein the article rotator can be stabilized at both a first position and second position which is approximately 90 degrees from the first position.

Abstract: The present teachings provide a modular articulating cement spacer mold for forming a temporary implant comprising a mold first portion; a mold second portion; a hinge region connecting the mold first portion and mold second portion; and a self-securing device to removably secure and separate the mold first portion and the mold second portion. Other modular articulating cement spacer molds are also provided.

Abstract: Disclosed is a molding device for a machine for manufacturing containers, including: two half-molds; two mold carriers, each of which is provided with a recess for receiving a corresponding half-mold; and at least one retractable attachment bolt that is slidably mounted in at least one mold carrier between an operative position, in which the bolt is extended to removably attach the corresponding half-mold in a clampingly mounted position against the back wall of the corresponding recess, and a retracted position, in which the bolt releases the half-mold, characterized in that each bolt and/or the corresponding half-mold include a clamping strip that is angled so as to cause the half-mold to bear against the back wall of the recess during the sliding of the attachment bolt from the retracted position thereof to the operative position thereof.

Abstract: The invention relates to a blowing mold array (1) for re-molding plastic preforms into plastic containers comprising a blowing mold unit (2) forming a cavity (8), inside of which the plastic preforms can be expanded to plastic containers, wherein the blowing mold unit (2) is at least a two-piece unit, and having a blowing mold retainer (4) for accommodating the blowing mold unit, wherein the blowing mold retainer (4) has at least two mold retainer elements (4a, 4b) for accommodating parts (2a, 2b) of the blowing mold unit (2), and having a locking mechanism (10) in order to arrest at least one part (2a) of the blowing mold unit (2) against at least one mold retainer element (4a), wherein the locking mechanism (10) is provided with an engagement element (12) that can be pivoted and/or shifted relative to a default axis (X), which in an arrested state of the part (2a) of the blowing mold unit (2) opposite a mold retaining element (4a) abuts a segment of the part (2a) of the blowing mold unit (2).

Abstract: A center mechanism of a tire vulcanizer is provided with a screwing mechanism provided with a screw shaft and a screw nut screwed onto the screw shaft, a motor for rotating the screw shaft so as to raise and lower an upper ring body, an inverter for controlling the motor, and a mechanical brake for retaining a predetermined position of the upper ring body so that a bladder retains a shaping state. Within a time range from start of a closing action of the upper die to contact between the upper die and the upper ring body, an operation of the mechanical brake is released and position control of the upper ring body by the inverter is started, and at least after the release of the operation of the mechanical brake, a position of the upper ring body is controlled by the inverter. By such a configuration, even when there is an erroneous operation of the brake or incorrect setting, it is possible to prevent damage and breakage of constituent parts and have a simple structure.

Abstract: In supplying a predetermined amount of a molten resin D between an upper mold 10 and a lower mold 20 for compression molding, after the upper mold 10 is moved downward for a predetermined stroke length so that it approaches the lower mold 20 in which the molten resin D has been supplied, a compression load is applied while moving the lower mold 20 upward and supporting the upper mold 10 such that clamping is conducted against the compression load which has been applied to the lower mold 20. As a result, when molding a molded article in a predetermined shape by compression molding, if molds are allowed to open with a sufficient stroke length for taking a molded article out, prolongation of molding cycle can be effectively prevented, whereby a molded product in a predetermined shape can be mass-produced.

Abstract: A masonry unit forming system including a mold box having a first open side and a second open side; a first mold plate; a second mold plate; a first drive mechanism configured to move the first mold plate into the first open side of the mold box; and a second drive mechanism configured to move the second mold plate into the second open side of the mold box.

Abstract: An injection molding shutoff assembly that includes a chamber containing a movable body movable between rear and forward positions. In the rear position, the movable body provides a seal and prevents flow of molten plastic out the chamber inlet, called drool. When the movable body is in the forward position, one or more passages permit flow of the molten plastic around the movable body and to an exit in the chamber, leading to one or more molds. In an alternate embodiment, the apparatus also includes an elongate stem that maintains the movable body in the forward position allowing the injection molding system to decompress, thereby eliminating drool and decreasing downtime.

Abstract: An application device (27) for applying a layer of a building material in powder form in a device (1) for manufacturing a three-dimensional object by a layer-wise solidification of a building material at positions in the respective layers that correspond to the object is provided. An application element (61) that applies the building material in powder form in the form of a layer and a drive mechanism (59) that moves the application element (61) across a building plane (11) in order to apply the layer of the building material are provided. The drive mechanism (59) comprises an actuation piston cylinder system (69) and a brake piston cylinder system (70).

Abstract: The present teachings provide a modular articulating cement spacer mold for forming a temporary implant comprising a mold first portion; a mold second portion; a hinge region connecting the mold first portion and mold second portion; and a self-securing device to removably secure and separate the mold first portion and the mold second portion. Other modular articulating cement spacer molds are also provided.

Abstract: A stretching rod holding arrangement may include a stretching rod for expanding plastic containers, wherein the stretching rod has an elongate rod-shaped main body and a holding body, which protrudes with respect to this rod-shaped main body in a radial direction of the rod-shaped main body. The arrangement comprises a receiving space for mounting the stretching rod, wherein at least one region of the holding body can be received by this receiving space, and the receiving space has a lower boundary wall in the longitudinal direction of the stretching rod. An opening is provided in this lower boundary wall, through which opening the main body of the stretching rod can pass. An arresting mechanism, which can be moved with respect to the receiving space between at least two positions, may be provided above the lower boundary wall in the longitudinal direction of the stretching rod.

Abstract: A method and apparatus for creating pre-stressed zones in concrete. In one embodiment, a circular blade is coated with a chemical which retards the setting of the concrete. The circular blade is then rolled through the wet concrete, thus transferring the retarding chemical from the blade into the concrete. The region of wet concrete that has the retarding chemical introduced into it does not set until after the surrounding concrete has set and shrunk, thus creating a pre-stressed zone which typically manifests itself as a crack, visible upon setting of the wet concrete. Other embodiments describe alternative ways of introducing the chemical into the wet concrete.

Abstract: Disclosed is an injection unit (1) for an injection molding machine, comprising a screw (4) that is driven by means of a spindle drive (18). The spindle drive (18) is driven via an electric motor (6). Additionally, a force that acts in an axial direction is transmitted to the screw of the injection unit (1) via a hydraulic cylinder (38). According to the invention, a pump (48, 68) is driven via the electric motor (6). A pressure chamber (44) of the cylinder (38) can be supplied with more pressurizing means via said pump (48, 68) than is needed during an axial displacement of the plunger (36).

Abstract: Equipment that lays flat films or tubular films extruded by a blown film extrusion installation has at least one roller, which guides the walls of the film or the tubular film. The lay-flat equipment has at least one device that influences the rotational speed of the roller by providing a torque that can be transferred onto the roller by a transfer device. The transfer device provides for slippage between the roller and the device that provides the torque, thereby ensuring a smooth transfer of torque and preventing damage to the film.

Abstract: A blow-molding machine for producing blow-molded hollow bodies from a thermoplastic material, includes two blow-mold halves which can be horizontally displaced and provided with separate drive units for a transport drive and for the sequence of movements of the mold closing and locking device to open and close the blow mold halves. Conventional blow-molding machines are still equipped with hydraulic drives at least for the mold closing and locking device. In order to provide a blow-molding machine that can for example be operated under clean-room conditions, the drive unit of the blow-molding machine according to the invention is configured for the clamping elements of the mold closing and locking device as an electromotive direct drive with a spindle drive and a spindle mechanism with recirculating rollers.

Abstract: A clamping device for injection-molding machine includes a high-speed screw rod unit having a nut element screwed thereto and a movable mold holder connected to a front end thereof, a clamping screw rod unit screwed to a rear end of the nut element and connected to a transmission assembly, a pre-pressing unit adjustably tightened to the clamping screw rod unit for the latter to generate a pre-pressure against the nut element, and a braking unit adapted to brake the nut element. When the nut element is not braked, the high-speed screw rod unit is driven by the transmission assembly to move forward at high speed for closing mold. And, when the nut element is braked and the clamping screw rod unit is driven by the transmission assembly to rotate relative to the nut element, the nut element is linearly pushed forward to generate a high-pressure clamping force during closing mold.

Abstract: To displace a moving mold mounting plate (3), a threaded spindle drive is inserted between the moving mold mounting plate (3) and a fixed mold mounting plate (16), whereby one end of each threaded spindle is mounted in the fixed mold mounting plate (16) and is configured as a piston (9) of a hydraulic piston and cylinder unit. The pistons are mounted in the fixed mold mounting plate (16) in hydraulic cylinders and an increased clamping force is created for the platen clamping mechanism by an appropriate impingement of the piston (9). In addition, the invention provides a detachable anti-rotation mechanism (23) for the threaded spindles (15). The invention thus allows an inclined position of the mold mounting plates (3, 16) to be corrected, by the targeted rotation of one or more threaded spindles.

Abstract: The invention pertains to a closing device in the form of an injection-molding machine for plastics with a stationary mold clamping plate and a movable mold clamping plate, which can be operated by a linear motor. At least one linear motor (41, 42) is connected to a force transmission element (21, 22) which is connected to a lever mechanism (31-33).

Abstract: A stationary platen (14) and a movable platen (18), which are connected with each other by tie rods (28), to which metallic molds are respectively attached, are opened and closed by an electrically driven ball screw mechanism. The movable platen is composed of a platen body and a pressure plate (304) attached to the platen body which can be contacted with and separated from the platen body. Between the movable platen and the pressure plate, clamping is conducted by the expansion and contraction of a bladder (318) into which hydraulic oil for clamping can be introduced. The bladder houses an insert die (320), the shape of which is identical with an internal shape of the bladder, and a hydraulic oil path is formed in the insert die. While a ball screw member (102) of an electrically driven ball screw mechanism is being supported being capable of moving in the axial direction, a brake means (130) for restricting rotation is provided, and a mold releasing cylinder mechanism (116) is connected.

Abstract: A method and apparatus for synchronizing the flows of molten polymer or similar materials in molding systems which utilize manifolds to direct flow into one or more cavities of an injection mold. The apparatus utilizes intermeshing positive displacement, interconnected gearing systems similar to positive displacement gear pumps in hydraulic systems. These positive displacement gear mechanisms are placed in each parallel flow channel such that all flow in each channel passes through a gear mechanism. After a mold cavity is filled, the gear mechanisms can be utilized as melt pumps to continue packing or holding plastic in the mold cavity. By reversing the pump mechanisms, precise decompression of the flow channels to eliminate gate stringing and other adverse effects can be accomplished.

Abstract: A closing unit for an injection molding machine for processing plastic material includes a fixed mold mounting plate connected to a moveable mold mounting plate by means of a crank or toggle lever mechanism, which is operated by at least two motor-driven spindles arranged in series and having thread pitches in an opposite manner. One spindle is operatively connected to the fixed mounting plate, whereas the other spindle is connected to the crank or toggle lever mechanism. A sleeve-like force transmission element is arranged concentrically in relation to the spindles. Spindle nuts are respectively provided on opposite end faces of the force transmission element and interact with the power transmission element and the spindles.

Abstract: An injection moulding machine comprising a mould mounting plate movable by an electric motor (3) by means of a closing device (1). There is provided a guard grille (4) having a gate (5), the opening of which interrupts the power supply to the electric motor (3) by actuation of at least one safety switch (6, 7, 8). There is also provided a braking device (10). The braking device (10) is arranged between the electric motor (3) and the closing device (1) and is provided with a monitoring device (29).

Abstract: A rotary compression press for cylindrical compacts, especially tablets, comprising a rotatably driven rotor including a die-plate and an upper and a lower ram guide for upper and lower rams cooperating with the die bores, and a pressure station with an upper and a lower pressure roller for applying a pressing power to the rams wherein the rams circumferentially have an annular tooth system which cooperates with an opposed tooth system in the area of a pressure station for the rams for the purpose of rotating the rams in the die bores thereof, characterized in that the opposed tooth system is defined by a rotatably supported gear which is acted on by a preset braking torque with the braking torque being chosen so as to be smaller than the torque of the ram when under a maximum pressing power.

Abstract: A mold system has a pair of mold halves movable toward and away from each other, a threaded spindle coupled to one of the mold halves, and a nut threaded on the spindle and coupled to the other of the mold halves. A high-speed low-torque brakable spindle motor is connected to the spindle and operable to rotate the spindle in the nut and a low-speed high-torque nut motor separate from the spindle motor is connected to the nut and operable to rotate the nut on the spindle. In a first mold-closing stage the spindle motor is operated to rotate the spindle in the nut and move the mold-halves rapidly toward each other. Thereafter in a second and subsequent mold-clamping stage the spindle motor is braked and the nut motor is operated to rotate the nut on the spindle and press the mold halves against each other.

Abstract: A cam slide retainer for injection molds includes a hardened wear plate with an elongated latch groove, mounted in a corresponding recess formed in the lower surface of the cam slide. The wear plate is aligned in the direction of travel of the cam slide and has a length that is no less than the length of stroke of the slide. A conventional spring-loaded plunger mounted adjacent the wear plate remains in contact with the wear plate throughout the stroke of the slide, so that the slide itself is not subject to wear from contact with the plunger.

Abstract: The mold press includes a drive arrangement for controlling press movement and closure force. The drive arrangement includes a pair of generally identical drive units connected between upper and lower press plates adjacent opposite longitudinal ends of the press. The drive units in a preferred embodiment each employ a ball-screw drive arrangement. The screw shaft extends vertically between the top and bottom press plates. The screw shaft engages a ball nut mounted on one press plate, typically the bottom press plate which is disposed for movement toward and away from the top press plate. A first high speed drive arrangement employing a first electric motor is coupled to the screw shafts for effecting high speed opening and closing of the bottom press plate.

Abstract: A press arrangement having ball-screw drive units for providing rapid opening and closing movement of the press, and having a pneumatic closure arrangement for providing a final small-stroke closing movement and holding force for the mold. The pneumatic closure arrangement acts through the mold to cause the ball-screw drive units to be axially displaced a small amount sufficient to cause automatic engagement of a friction brake which nonrotatably holds the screw shaft to prevent back driving thereof due to the mold closure force.

Abstract: A rotary tablet press has a rotating mold table and top and bottom plungers, which can move reciprocally in plunger guides, coaxially with the molds. The reciprocating motion of at least the bottom plungers is cam-controlled and these plungers are acted upon by a damping element to prevent an overshoot of their movement. To ensure an action which is as free from wear and is as maintenance-free as possible whilst maintaining constant damping of the bottom plungers, it is proposed according to the invention that the damping element consists of at least one magnetic element which acts on the plungers.

Abstract: The invention provides an articulated bending mold for shaping heat softened substrates, e.g., glass sheets, into curved shapes. The bending mold has a central portion with at least one, and preferably two, pivoting end sections. A biasing assembly is mounted on the side of the mold between the end section pivot points, preferably outboard of the end section pivot points and in proximity to an outer side of the end section. The biasing assembly includes a weight arm with a linkage assembly mounted on one end of the weight arm and connected to the end section, preferably at or near an outer corner of the end section.

Abstract: An improved apparatus for adapting speed, in particular for nippers (1) which can be made to travel along a rail arrangement (3), is distinguished by the following featuresa rotating and electrically conductive eddy-current body (17), preferably designed in the form of an eddy-current wheel or an eddy-current cylinder, is provided,the guide rail arrangement (3) runs at least over and away from a partial region of the eddy-current body (17) with a tangential component,on the carriages (1) which can be made to travel along the guide rail arrangement (3) there is provided or can be excited at least one magnet (7a, 7b), which is arranged on the side facing the eddy-current body (17) and, in the region of the eddy-current body (17), can be moved over and away from the eddy-current body (17), with an air gap being formed.

Abstract: An automatic dry wall applicator having an applicator head connected to a translucent body with a quick release mechanism for easy cleaning and a gas spring dispensing system which moves a piston head in the body to dispense dry wall compound. A loading mechanism uses a manual pump which generates sufficient force to overcome the gas spring pressure to force dry wall compound from a reservoir into the head and body to retract the piston head during loading. The piston rod engages a cam brake which frees the rod during loading and locks the piston head from dispensing unless the cam is manually released from the rod. In one form of the invention, an on-off valve closes the applicator head during loading and can be opened to permit dispensing of dry wall compound.

Abstract: A stepless speed changing device is disclosed. The device converts its operational mode between three or four modes thus reducing the load applied to both the summarizer and the speed changing unit. First and second gears are fixedly and rotatably fitted over a torque input shaft, respectively. The second gear is selectively clutched by a first clutch to convert the operational mode into a third mode. Third and fourth rotatable gears of a driven shaft are selectively clutched by a second clutch to convert the operational mode into a first mode. The summarizer constructed of an epicycloidal gear train cooperates with the fourth gear in the first and third modes. A sixth gear of the driven shaft is selectively clutched by a third clutch to convert the operational mode into a second mode. An eleventh gear of the driven shaft is selectively clutched by a fourth clutch to convert the operational mode into a fourth mode.

Abstract: A method of and a device for forming blisters in which a web material consisting a thermoplastic resin that is supplied to a rotary forming drum is heated and deformed by heat in accordance with the configuration of cavities provided on the rotary forming drum. A predetermined tension is applied forming web material while feeding it. When the rotary forming drum consists of a polygonal drum, each peripheral surface of the drum is formed as a curved surface extending along an arc whose radius is larger than that of the circumscribed circle of the polygon. This invention can be used in a packing device for foods, drugs, etc.

Abstract: In order to guarantee substantially trouble-free operation when manufacturing sandwich elements on a double conveyor belt installation having a downstream cross cutter and cleaning device, the cleaning device disposed on a transport carriage i) is returned to the carriage of the cross cutter to pick up the next sandwich element, is braked and is then re-accelerated to a speed higher than the production speed, ii) is, after reaching a desired distance.

Abstract: A device for forming blisters in which a web material including a thermoplastic resin that is supplied to a rotary forming drum is heated and deformed by heat in accordance with the configuration of cavities provided on the rotary forming drum. A predetermined tension in the range of 5 kg/215 mm to 50 kg/215 mm is applied to the web material while feeding it. When the rotary forming drum consists of a polygonal drum, each peripheral surface of the drum is formed as a curved surface extending along an arc whose radius is larger than that of the circumscribed circle of the polygon. This invention can be used in a packing device for foods, drugs, etc.

Abstract: The present invention relates to an improved clamping mechanism for use in injection molding machines and similar pieces of equipment where it is desired to apply a clamping force to particular components. The clamping mechanism of the present invention employs at least one spaced apart brake plate mounted to one component and a braking unit for engaging the brake plates. The braking unit has at least one pair of brake pad linings surrounding the brake plates and at least one piston-cylinder unit for causing frictional engagement between the respective brake pad linings and the brake plate(s). When the brake pad linings grip the brake plate(s), the braking unit becomes locked to the components to which the brake plate(s) are attached. The clamping mechanism of the present invention may be employed on simple injection molding machines as well as TANDEM.RTM. injection molding machines.

Abstract: A method and apparatus for effecting an accurate, clsoe tolerance guidance between relative movable male and female mold elements operable at high speed to mold thin wall articles free of the risk of mold damage due to relatively small occurrences of mold misalignment.

Abstract: In an injection molding machine which injects molten metal into a metal mold cavity by an injection step and a succeeding pressure holding step, the injection step is controlled by the steps of filling the molten resin into the metal mold cavity at a high speed during the filling step; switching the injection operation from the filling step to the pressure holding step; concurrently operating braking means for applying a braking force to the plunger of the injection molding machine for stopping the plunger; and locking the braking means for continuously applying a constant force to the plunger until a gate seal of the metal mold cavity is completed.

Abstract: This relates to a blow molding machine of the type for blow molding large articles such as containers of the one gallon to five gallon size from a parison in the form of an extruded plastic material tube. The machine is of the rotary type and has a plurality of stations each carrying a mold unit of which one half is fixed and the other is mounted for radial movement between open and closed positions. The main shaft of the machine is of a large diameter and is tubular so that the necessary manifolding for gas and coolant supplies may be readily incorporated in the main shaft in an entirely different manner from that heretofore utilized. Also, among other features of the machine, is the provision of hollow spokes which serve not only to support outer mold halves for radial movement, but also serve as manifold accumulators for the necssary operating gases.

Abstract: A mold structure having at least first, second and third mold parts stacked one on top of the other, each having structure thereon defining at least one part of a mold cavity. The second part is oriented between the first and third parts and has mold cavities on both sides thereof. A support structure is provided for supporting the first mold part for movement toward and away from the third mold part. Structure is included within the mold structure to limit the spacing between the first and second mold parts to a prescribed spacing so that as the first mold part is moved away from the third mold part, the second mold part will be spaced a prescribed distance away from both the first and third mold parts.The invention also includes a mold opening structure which is coaxially aligned with the elongate tie rod extending between the mold parts. This structure further effects a safe and positive opening of the mold structure.

Abstract: A fluid powered press comprising a first platen and a second platen with at least one of the platens being reciprocably movable along a predetermined axis relative to the other platen and having motor means for so moving the movable platen, and a leveling system therefor. The leveling system comprises a plurality of hydraulic leveling piston and cylinder units mounted on one of the platens with each of the leveling units including a projecting rod member connected to the piston of the respective leveling unit and movable with the piston axially relative to the cylinder of the respective leveling unit. Reciprocal fluid powered motor units mounted on the other platen coact with wedge locks for selectively coupling the rod members to the other platen.

Abstract: A press includes a frame, a flywheel, a motor for driving the flywheel, and a shaft. A clutch and brake assembly is provided which is actuable for engaging and disengaging the shaft to the flywheel. An eccentric is journaled upon the shaft and rotates therewith. The eccentric rotates in a block which is slidably mounted in a head to permit the block to move laterally within the head. The head is vertically movable in response to vertical movements of the block. The press also includes an upper die which is mounted on the head and a lower die which is resiliently supported upwardly on a base. Movement of the head engages and disengages the upper die and lower die. One embodiment of the press includes a second set of dies mounted to the head for cutting a continuous sheet of material into a predetermined shape.