Abstract: A plunger tool for producing a special prophylactic is disclosed. The special features of the plunger tool reside in the special curvatures in its shaped section. The shaped section of the plunger tool exhibits an extreme narrowing, at the deepest point of which there may be at least one annular groove. Unlike prior art transitions, the transition from the large diameter to the reservoir section is not steep and straight but takes the form of an S-shaped curve. An exact contour of the annular grooves on the surface of the plunger tool is essential for their production and can be done only by the use of a precision diamond abrasive point.

Abstract: Apparatus for encapsulating products, for instance encapsulating lead frames with epoxy resin, wherein the apparatus comprises:one or more pressing devices for encapsulating the products at increased pressure and/or temperature;a first carriage device for transferring the products from supply means to the pressing device; anda second carriage device for discharging the encapsulated products from the pressing device to discharge means, wherein the first and second carriage are guidable along collective guide means.

Abstract: A process and a device for producing a thin-walled prophylactic, which is manufactured in a plurality of immersion stages, is disclosed. The device includes an endless conveyer belt on which an elongated cylindrical immersion tool is mounted. The process substantially consists of three immersion stages and three different immersion tubs, whereby the depths of immersion of the immersion tools substantially deviate from each other. After each immersion stage, a predetermined heat treatment of the elastic material applied to the immersion tool is carried out.

Abstract: A pick-up and transfer head (1) for hollow objects (10) which is particularly suitable for picking up thermoformed objects from a female die (3) and transferring them to a receiving station (22) in a thermoforming apparatus, which comprises at least one pick-up structure (1) which is designed to engage and support the object (10) or objects to be picked up and transfer them to a supporting and displacement unit (22), and has a flat plate-like (4) or reticular member having at least one seat (5) for the respective object (10) or objects to be picked up and transferred, engaging/disengaging means (6) for the corresponding object (10) located at seat (5) or seats and control means for the said engaging/disengaging means (6) to control the picking-up and release of the object (10) or objects.

Abstract: In an apparatus wherein a plastic blow molding machine is operated to make hollow containers which are discharged and fall by gravity out of the machine wherein an endless moving conveyor which includes closely spaced vacuum cups is provided and positioned such that a reach of the conveyor is positioned horizontally and such that the vacuum cups face upwardly to grab and hold the plastic containers as they are discharged such that containers are held in axial alignment and circumferential orientation to one another.

Abstract: A bushing for retaining a knock out pin and a removable knock out pin assembly utilizing that bushing. The bushing has a pin holding portion composed of upstanding flexible arms engagable with a knock out pin, each of the arms having a lug for engaging the knock out pin. A retention ring is formed on the bottom of the bushing, the ring having an outwardly-extending flange for engaging an aperture in a plastic mold. The knock out pin has opposite grooves for accommodating the lugs of the bushing, the pin being removable by rotating the pin 90.degree. to disengage the lugs from the grooves so that the pin can be axially removed.

Abstract: A demolding apparatus removes chocolates from molds. The apparatus includes upper and lower conveyor systems and an inverting unit. Full molds filled with chocolate are carried by the lower conveyor to the inverting unit which inverts the full molds and transfers the inverted full molds to the upper conveyor. The chocolates are emptied from the inverted full molds and conveyed away from the apparatus. The empty molds are carried by the upper conveyor to the inverting unit which inverts and transfers the empty molds to the lower conveyor.

Abstract: Apparatus for manufacturing pharmaceutical capsules uses an aqueous solution of a thermogelling cellulose ether composition, and uses capsule body pins and capsule cap pins as molds. The apparatus heats the pins, dips the pins into the solution to cause the solution to gelatinize on the surface of the pins, and dries the gelatinized solution on the surface of the pins to form capsule bodies and caps. The apparatus provides differential heating and supplemental heating of the pins before dipping, and directed radiant heating after dipping. The apparatus provides counterflow air for drying. The apparatus removes parts from pins by gripping. The pins are smaller than pins used to make gelatin capsules of the same size number.

Abstract: A mold for molding a substrate of a disk, including a stationary and a movable mold half which are movable relatively to each other, a positioning ring portion on the movable mold half, for positioning an annular stamper at its center hole, and an ejector sleeve located radially inwardly of the positioning ring portion and movable to remove the substrate from the movable mold half. The ejector sleeve includes a recessing end portion which extends in an axial direction thereof beyond an end face of the positioning ring portion into the mold cavity when the stationary and movable mold halves are placed in the closed position. The recessing end portion has an outer circumferential surface which is perpendicular to the end face of the positioning ring portion, so that an annular recess partly defined by a circumferential shoulder surface is formed by the recessing end portion of the ejector sleeve. The circumferential shoulder surface is formed by the outer circumferential surface of the recessing end portion.

Abstract: In an apparatus for producing foamed plastics parts, a closed mold (1) is filled with polymer molding compound and, after the elapse of a reaction time, the finished part is removed. A plurality of identical molds (1) run on mold carriers (5) through a production installation. For the purpose of reducing the production outlay, a demolding device (11) shared by all the molds (1) is brought into operative connection successively with the molds (1) and in each case one mold (1) is opened. The movements required in this operation are executed by the demolding device (11). An unlocking unit (19) and a swiveling unit (20) of the demolding device (11) are brought into engagement with the mold (1) by a positioning unit (21), after which the mold (1) is unlocked and one mold half (1a) of the mold (1) is swung open. For unlocking the mold (1), the latter is raised against spring force and a positive locking is brought out of engagement.

Abstract: A disc molding die includes a stationary-side mirror block disposed on a stationary die, a movable-side mirror block disposed on a movable die and facing the stationary-side mirror block so as to define a cavity in combination with the stationary-side mirror block, and a cavity ring disposed on the radially outer side of one of the stationary-side mirror block and the movable-side mirror block so as to define the outer circumferential edge of each disc substrate. The portion of the cavity ring facing the cavity is roughened. When resin is charged into a cavity, very small spaces are formed between the resin and the inner circumferential surface of the cavity ring, due to the roughened portion of the cavity ring facing the cavity. Therefore, the release resistance during die opening or releasing can be decreased.

Abstract: In a multi-cavity molding apparatus that includes a cavity part having a plurality of cavity sections that is combined with a core part having a plurality of cores to define a plurality of mold cavities therebetween, and a plurality of locking rings respectively disposed around a plurality of the cores for engagement with respective cavity sections when the core part is combined with the cavity part, a cavity shield is attached to the cavity part to prevent molded products ejected from the mold cavities from entering spaces between the cavity sections of the cavity part and a core shield is attached to the core part to help prevent the ejected products from entering spaces between the cores of the core part. The cavity shield and the core shield thereby respectively limit obstruction by the cavity part and the core part of removal of the ejected products from the space between the cavity past and the core part. The core shield includes more than the ejection means.

Abstract: The present invention relates to an apparatus for forming a fastener member having a base and a plurality of headed stems arranged in columns and rows and projecting from the base. The fastener member is formed by injection molding a molten material into a base mold, sacrificial stem mold and head mold, wherein the material is solidified. After the base mold and head mold are removed, the stem mold may be removed to release the fastener member.

Abstract: An insert moulding system in which a movably mounted tool head loads inserts into the mould and unloads moulded articles from the mould. The tool head has sensors and an article position and retaining structure on a load face thereof for each of a number of insert pieces to be incorporated in the moulded articles. The operation is computer controlled and the sensors on the tool head sense at least one characteristic of each insert piece thereon, e.g. flatness and generate a signal in response to such characteristic being outside of specification which renders inoperative the moulding process until the offending insert piece is replaced by one meeting specification. Position locators have inter-engageable portions respectively on the tool head and the fixed in position mould positively to locate the movable head and fixed mould in a predetermined fixed relation relative to one another during cycle after cycle of operation providing precision injection moulding.

Abstract: An apparatus and method for directing accelerated electrons to at least part of one surface of one ophthalmic mold piece prior to filling with monomer and lens polymerization. In particular it has been found that generation of the ionized oxygen by means of a corona treatment electrode sufficiently increases the adherence of the polymer to the mold piece so treated. In the preferred embodiment, the flange around the convex, male piece of the lens mold is corona treated so that when the mold pieces are separated after lens polymerization, the flashing of excess polymerized material surrounding the lens cavity adheres to that male, convex piece flange while the lens is removed with the female, concave piece.

Abstract: An improved method of removing a stuck sprue from the ejector assembly of an injection molding machine and a tool for use in the method in which the tool has a body with a hollow lower portion having a bottom edge with peripherally spaced indentations, In the method, the tool is first heated to above the melting point of the molding material and the lower end is inserted into the stuck sprue. The tool is cooled to below the melting point of the molding material and then rocked back and forth to free the sprue from the ejector mechanism.

Abstract: A metal mold device for molding a disc substrate formed by molding a synthetic resin material and having a raised portion on the inner surface of the disc substrate, includes a fixed metal mold and a movable metal mold for defining together a mold cavity for molding the disc substrate. A mold releasing resistance in the form of suitably sized projections or recesses, is provided at a portion of the fixed metal mold or the movable metal mold mating with the outer rim of the disc substrate being molded or at the outer peripheral surface of the raised portion to permit an as-molded disc substrate to be released easily and reliably from a stamper bearing a pattern of pits and lands or pre-grooves and to prevent molding distortions from being produced in the disc substrate being molded.

Abstract: A method for manufacturing a curved rubber pipe is provided with a guide member (3) arranged concentrically with a mandrel (2, 402). A straight rubber semi-finished product (4) of an unvulcanized or semi-vulcanized rubber is inserted into the guide member (3). A die lubricant can be applied only to the inside of the rubber semi-finished product (4) over its whole length. The rubber semi-finished product (4) is fitted on the mandrel (2, 402) by pushing the product by a head (7) mounted on a leading end of an arm (6). One end of the curved rubber pipe (1) is gripped after vulcanizing by a gripping member (10) and is extracted from the mandrel (2, 402). By this method, it is possible to fit and smoothly extract the rubber semi-finished product (4). The method can also easily be automated.

Abstract: Device for the fabrication of concrete blocks having thin through holes for the drainage of water (perforated blocks), the fabrication taking place in at least one mold filled with concrete, which mold is supported on a mold table, and at least one male die for the compaction of the concrete. In order to create the thin holes, core pins are arranged in the region of the male dies or of the mold table or of the mold, which core pins are introduced inside the mold before the compaction of the concrete. Afterward, the concrete is compacted, the core pins are removed from the region of the mold, the compacted concrete blocks are completely demolded, and the concrete blocks are cured.

Abstract: A mold closing unit for use in an injection molding machine for processing plastic materials for removal of moldings is provided with a device for actuating at least two first identical parts of an injection mold, which are transferred alternately into the space between the mold carriers of the mold closing unit on a guideway that runs transversally with respect to the closing direction for creation of an injection mold.

Abstract: An apparatus for producing ice vessels for use in serving fresh foods is disclosed. The apparatus includes a female die with a male die opposite to the female die. The female die has a hole at the bottom thereof through which a pin can be raised and lowered by means of an elevator device. An automatic ice crusher is located relative to a chute box for feeding ice pieces into the female die. The chute box has an outlet located above the female die and an inlet located below the ice crusher for receiving ice from the ice crusher. A carrier-arm device is movable back and forth to transport molded ice vessels from the female die. A transporting outlet chute serves to transport the molded ice vessels, the outlet chute being inclined for permitting the molded ice vessels to slide thereon. The device is further characterized by having the carrier-arm device include holding arms capable of moving toward and away from each other along the sides of the female die.

Abstract: A molding apparatus for plastic objects which includes a valve which allows ejector pins to be positioned in close proximity to the valve needle. The valve includes a valve body and a flange surrounding at least a portion of the valve body such that the outer edges of the valve body and/or the flange may have slots which extend lengthwise from the top to the bottom of the valve. Depressed portions in the side portions of the flange and corresponding outer edges of the valve body may also extend through the length of the valve. The slots and depressed portions may be utilized for positioning ejector pins in close proximity to the valve needle.

Abstract: An apparatus for molding a tamper evident closure having a top, an annular skirt depending from the top, and a breakaway band secured to an underside of the skirt by a plurality of bridges includes a mold frame, a cavity portion releasably secured to the frame and configured for forming an outer surface of the closure, a core portion nestable into the cavity portion and mounted on the frame for reciprocal axial movement relative to the cavity portion, a slide portion mounted to the frame for reciprocal movement transverse to the axial movement of the core portion between a closed position and an open position, and a stripper device located on the frame for disengaging molded closures retained on the slide portion as the slide portion moves from the closed position to the open position.

Abstract: The invention is a pie crust lifting tool and corresponding rolling board for lifting pie crusts from a rolling board and placing them in a pie plate in anticipation of baking. The lifting tool has a handle at one end and a circular shaped portion known as the lifting ring at the other end. The rolling board is used in conjunction with the tool and has a specially shaped groove in the upper surface in order to accommodate the tool when the crust is being rolled. The groove is circular in shape and has a straight channel connecting the circular shape with one edge of the board. The tool rests in the board until one is ready to use the board. Pie crust or other dough is rolled on the board and then lifted off of the board by use of the lifting tool. The dough is then transported to a pie plate or pie dish or other baking utensil.

Abstract: A machine for molding bonded plastics material, in particular expanded or foamable polystyrene in combination with rigid sheet polystyrene, wherein the rigid material (2) is preformed in a preforming station (1) in a preforming mold (33, 36) while simultaneously separating by a cutter (40) the preformed portion from the rigid sheet of starting material to produce separate preformed pieces, the preformed pieces are moved by a transfer table (27) to a molding station (3) while retained on preforming half-mold (33), foamable material (44) is fed to molding mold (41) and molded and bonded on the preformed pieces with sintering by pulse action of steam (45) and, the final molded articles (P) are discharged at discharge station (6). The half-mold (33) is moved alternately between the preforming station (1) and molding station (3), and cooperates with respective counter-molds (36, 41). The scrap is recovered without being involved in the molding stage.

Abstract: An apparatus for molding electronic components. The single-strip molding apparatus has a mold die formed from two mold halves which are movable relative to each other and can be closed upon one another. A leadframe for the component to be molded is placed into a recess in one of the mold halves. Molding material is heated and forced under pressure into the recess containing the leadframe. After the component is molded the mold is opened and the upper half of the mold is cleaned by a combined cleaning-discharge unit. Upon the return stroke of the cleaning-discharge unit, the molded component is removed and the lower half of the mold is cleaned.

Abstract: A gripper (2) for removing a molded workpiece (9) from the opened mold (1, 3) of a molding machine is coupled through a step-up drive transmission with the ejector (13, 15, 17) associated with the mold in such a manner that the ejector causes it to execute a movement away from the ejector in the same direction of motion as the ejector. The drive transmission can in particular have co-operating limit stops (45, 43) on the ejector and on the gripper, and one of these limit stops is mounted on a drive step-up lever (37). In another embodiment, the step-up drive transmission is designed as a hydraulic transmission.

Abstract: An apparatus for taking residual solid matter out of an extrusion head of an extruder includes a grasping device for grasping residual solid matter in the extrusion head, and a moving device for moving the grasping device between a grasping position in the extrusion head and an exhausting position on one side of the extrusion head. In order to remove the residual solid matter from the grasping device even if the solid matter firmly adheres to the grasping device, the apparatus further includes a disengaging device for urging the residual solid matter to disengage it from the grasping device when the grasping device has arrived at the exhausting position and released the residual solid matter. A control device is provided for controlling the grasping device, the moving device and the disengaging device.

Abstract: An ejection and conveying device mounted in a rotary pressing tabletting machine having matrices supported by a rotating table, whereinto upper punches and lower punches enter and come out, while tablets come out at an ejection station; the device includes a plate fastened to the machine and positioned under the table. Part of the plate is located under the machine's ejection station, while a rotating disk is placed inside a raised border of the plate and has a plurality of hollows whereinto the ejected tablets fall so that the tablets are drawn by the disk up to be positioned above one or more holes made in the bottom of the plate and from which holes discharge channels depart. The tablets pass through the holes and are brought away by the channels.

Abstract: A molded article having an embedded bracket, such as a whirlpool tub, the mold and a method of molding the article are disclosed. The article includes a rigid shell having a non-finish side and a finish side. The non-finish side is coated with a polymeric material. The polymeric material encloses a bracket and distributes the weight of an attached object, such as a whirlpool motor, over adjacent polymeric material. The bracket is affixed to the rigid shell in a spaced relationship and includes a surface for attaching to an object by attachment means such as a blind bolt. The bracket may also be affixed to the rigid shell by supports which are welded to the rigid shell.

Abstract: An injection molded part of thermoplastic material, in particular an information carrier disk, is produced by cutting and removal of a sprue part from the injection molded part. The sprue removal leaves an opening in the injection molded part. In order to obtain a clean and smooth opening surface with a fit diameter that is as accurate as possible, the sprue part is axially offset relative to the injection molded part so that the integral connection between these two parts extends only over a part of the opening. The diameter of the axially projecting part is equal to or larger than the diameter of the opening and the rest of the opening being produced by injection molding. The dimensions are advantageously chosen so that a parting edge inclined at an angle of 45.degree. to the plane of the opening is formed and that the injection molded part amounts to 70% and the part to be separated to 30% of the length of the opening. The injection molded length of the opening may also be variable.

Abstract: A device for closing a lid of a cap while the cap is still in the mold where it was formed. The device includes a plate forming the moveable side of a parallelogram that rocks between the mold plates during mold opening to press the lid closed and then rocks back out of the way to allow part ejection. The motion is activated by mold opening so the molding cycle is not lengthened by its action.

Abstract: A material handling device for transferring a formed good from an injection molding machine includes a pair of spaced tracks. Inner ends of the tracks are positioned below a mold carried by the machine with the track positioned transversely to opening and closing movement of the mold by the machine. On the track is a slidable basket which may be moved from the track inner end to an outer end away from the machine. Basket movement may be effected by activation of a pneumatic drive formed as part of the track and attached to the basket. During forming of a good, the basket is moved under the mold. When forming is complete, the mold opens and the good ejected. The good falls into the basket which has a cushion-like surface to inhibit damage. Opening of the mold starts a first timing period which lapses to activate the pneumatic drive to move the basket and good to the track outer end for good removal. During this first timing period the mold closes to begin a next forming cycle.

Abstract: An ejection device in a die closing unit of an injection molding machine in which the ejector piston rod, reaching from behind through the movable die carrier and into an engagement cavity in the back plate of the movable die half, is automatically engaged with, or disengaged from, the ejector plate, in the course of the movement of a die assembly into and out of the operating position, in conjunction with a mechanized die exchange procedure. A connecting socket at the extremity of the piston rod cooperates with a connecting plug on the back side of the ejector plate. A brief interruption of the transfer movement, obtained by means of a stop-start mechanism responsive to the die assembly transfer movement, allows for the piston rod to be extended into, or retracted from, the engagement cavity.

Abstract: An ejection device in a die closing unit of an injection molding machine in which the ejector piston rod, reaching from behind through the movable die carrier and into an engagement cavity in the back plate of the movable die half, is automatically engaged with, or disengaged from, the ejector plate, in the course of the movement of a die assembly into and out of the operating position, in conjunction with a mechanized die exchange procedure. A connecting socket at the extremity of the piston rod cooperates with a connecting plug on the back side of the ejector plate. A brief interruption of the transfer movement, obtained by means of a stop-start mechanism responsive to the die assembly transfer movement, allows for the piston rod to be extended into, or retracted from, the engagement cavity.

Abstract: A release and carry-out apparatus is disclosed for removing a mold from a molding such as a concrete panel, and carrying out the molding to a predetermined position. This release and carry-out apparatus comprises: a base frame; an erectable frame erectably supported by this base frame; and a carrier for receiving only the molding disposed on a mold bed firmly, which bed is secured to this erectable frame when the erectable frame is erect, and carrying the molding to the predetermined position.

Abstract: The invention provides devices for raising a table for casting a concrete panel so as to be able to remove it from the mold. Such a raising device is provided with a funicular cable passing over an assembly of pulleys. Two carriages carried by two strands of this funicular cable travel perpendicularly to the pivoting axis of the table and with an identical movement. Two links are pivotably mounted on these carriages and on the lower face of the table so as to synchronize the raising movement of said table.

Abstract: An apparatus and method is disclosed for the fabrication of cylindrical structures (26) by filament winding of resin impregnated filaments around a novel cylindrical mandrel assembly (10) whereby the mandrel assembly (10) and fabricated cylindrical structure (26) are easily separated after curing of the resin impregnated materials.The invention utilizes an inner, hollow cylindrical mandrel member (11) onto which a metal cable (12) is wound over afterwhich segmented outer mandrel sections (13) are connected to the inner mandrel member by fastener devices (20) installed from the inner side of the inner mandrel member (14). The resin impregnated filament is then wound over the outer mandrel segments (13) and cured in a conventional manner. After curing, the fasteners (20) are removed from the inner side of the inner mandrel (11), and the cable (12) is removed by pulling it from one end of the mandrel assembly (10).

Abstract: A pressed-board plant having a multi-level press for the pressing of mats of comminuted or fiber material, with or without added binder, to form pressed board, for the lamination of finishing layers to substrates and wherever multi-level presses are applicable, has a multi-level emptying rack adapted to receive the pressed articles on respective press underlays (press trays or sheets). According to the invention, a storage rack for the press underlays is provided with the levels of the storage rack spaced at levels substantially corresponding to those of the press platens in the open condition of the press and from which the underlays are introduced into the press. The storage levels are interspaced with the levels of the emptying rack.

Abstract: A releasing apparatus for removing a shuttering from a molding such as a concrete panel.This releasing apparatus is of such an arrangement that an erectable frame for erecting and laying down a shuttering bed between a carry-in position and an erected position is erectedly provided on a base frame, a molding receiving mechanism is provided for receiving only a molding disposed on the shuttering bed in a state where the erectable frame is erected, and, after the molding has been received, the erectable frame is laid down to be ready for the succeeding shuttering bed to be carried in.

Abstract: An improvement is disclosed in the matrixing process employed in the manufacture of molded records. The improvement consists of using an insert in the matrixing process which is secured to the center portion of the matrix to be duplicated prior to electroforming a replica on the surface of the matrix. Metal is then electroformed over the surface of the matrix and the insert to form the replica and the insert is thereafter used to apply force at the center portion of the replica to force it away from the matrix on which it is formed.

Abstract: A device for the production of a non-woven product from a fluid dielectric substance, comprising a first electrode, means for leading this electrode along a closed path, driving means to move this electrode along this path, coating means for coating this electrode with the said substance opposite a first portion of the said path, a second electrode whose surface is relatively extensive with regard to the first electrode, located opposite a second portion of the said path, an electrostatic generator connected to one of the said electrodes to establish a potential difference between them so as to create an electrostatic field capable of acting on the said substance to form a plurality of fibers in the direction of the said second electrode, characterized in that it comprises two endless transport bands mounted respectively around guide means defining two closed parallel trajectories passing near the coating means and the said second electrode, these bands being connected to the said driving means so as to move

Abstract: A protective cover for the bottom fork cases on the front of motorcycles is provided. The cover consists of a hollow, flexible sleeve of non-rigid plastic material which is contoured to the shape of the fork case. A longitudinal slit in the sleeve is provided to permit installation and removal of the sleeve. When made of the preferred material, plastisol, the sleeve is made by heating a form having the shape of the fork case, dipping the heated form in plastisol for a time dependent on the thickness of the coating desired, and then heat curing the coated form. The desired holes are cut in the coating with a heated gasket punch, the slit is made in the coating, and the coating is removed from the form.

Abstract: Injection plastic molding apparatus comprising a pair of dies movable horizontally relative to one another between a closed molding position and an opened position. A nozzle is engageable with the dies for injecting plastic into the cavities thereof when the dies are in closed position to form a part. A hot wire is mounted on one of the dies such that when they are moved relative to one another to an open position, the hot wire will engage any drool of plastic which may occur between the nozzle and the part. Means are provided for energizing the wire at a temperature sufficient to melt and sever the drool permitting the part to fall under the action of gravity.

Abstract: Foldable chute is arranged below the mold members of a molding machine to receive the molded product dropped from the machine when the mold members separate. Means are provided for deflecting the dropped molded product to control the position in which it drops on the chute.

Abstract: The present invention provides a device for the charging of presses, particularly multiple-opening platen hot moulding presses, having drawing members for flexible transport supports carrying material to be moulded, said transport supports being in a feed basket in front of the press, characterized in that continuously rotating drawing means are provided as drawing members for the transport supports in the press platens.

Abstract: A method and apparatus are provided for multiple simultaneous blow molding operations for forming hollow objects such as containers, the method and apparatus employing at least two circumferentially spaced parison forming means with a single rotary indexing turntable. A first container is formed at one station and a second container is formed at about the same time at a second station circumferentially spaced from the first station, and the containers are simultaneously circumferentially transferred to an unloading station. The method and apparatus provide for multiple container forming and unloading operations on the same turntable. Different containers may be manufactured at the same time with one rotary indexing turntable.

Abstract: A method and apparatus are provided for multiple simultaneous blow molding operations for forming hollow objects such as containers, the method and apparatus employing at least two circumferentially spaced parison forming means with a single rotary indexing turntable. A first container is formed at one station and a second container is formed at about the same time at a second station circumferentially spaced from the first station, and the containers are simultaneously circumferentially transferred to an unloading station. The method and apparatus provide for multiple container forming and unloading operations on the same turntable. Different containers may be manufactured at the same time with one rotary indexing turntable.

Abstract: Ejector pins are carried by an ejector device, and are releasably secured in said device by latch means. Release of the ejector pins by said latch affords withdrawal, or replacement, or redistribution of said pins through a mold support plate, without removal of the ejector device from the molding machine assembly. A plurality of holes in the support plate coincides in number and distribution with a plurality of sockets in a carriage plate in the ejector device, to afford alternative groupings of ejector pins to accommodate various mold contours of interchangeable mold plates.