Abstract: Described is a drive for injection mould parts of a synthetic plastics injection moulding apparatus for injecting a wall part on a paper web, with at least one supply injector fixed on a carrier, a plurality of injector heads rigidly connected thereto and with driven connecting levers.

Abstract: A semiconductor encapsulating apparatus including a positioning apparatus positioning an encapsulant premold (preformed piece or pellet) in contact with the semiconductor and the curing apparatus through which the semiconductor and encapsulant are passed to cure and thereby encapsulate the semiconductor. The encapsulating apparatus may include a vacuum chamber to degass the encapsulant prior to curing, a robotic arm to position an encapsulant premold in contact with the semiconductor and encapsulant premold forming apparatus including a die engaging a plastically deformable strip to form therein a mold. Also included may be a mold filling dispenser, a mold solidifying bath which may include liquid nitrogen, a solidified premold ejecting roller and a premold storage tray. Also disclosed are roller and spray coating apparatuses adapted to coat an inner surface of the mold with a release agent thereby to promote subsequent premold release.

Abstract: A method of and a casting bed for producing a concrete product, especially an endless concrete blank prestressed in at least two directions. In order to enable a prestressing wire to be arranged in position and tightened in a simpler manner, at least one prestressing wire is passed in a zigzag-like manner crosswise between at least two fixed sides of a casting bed to form a wire net and the wire net is tightened from a third side of the casting bed in the direction of both first-mentioned sides so that the wire net is stretched in two directions by means of a traction in one direction. Finally, concrete is fed on the bed to form a prestressed concrete blank. An apparatus intended for carrying out the method comprises a weaving device for stretching the prestressing wires continuously and in a zigzag-like manner crosswise between two parallel sides of the casting bed and for tightening of the wires in the longitudinal direction of the casting bed.

Abstract: A flexible link belt is made by injection molding link portions into and through a flexible carrier webbing, whereby the link portions are also bonded to each other through holes in the webbing. The injection mold used for making the links has two mold sections each with a cavity portion corresponding to the respective link portion. The carrier webbing is held in place between the two mold sections. An injection nozzle reaches into one mold portion and a movable core reaches into the other mold portion preferably in such a position that the injection nozzle and the movable core face each other across the flexible webbing. The core distributes the injected plastics material into both mold portions and so that the plastics material must move primarily through the holes or interstices in the webbing.

Abstract: An extruded composite structure consisting essentially of an outer sheath surrounding an inner core, said outer sheath consisting essentially of an extrudable resin which remains thermoplastic after extrusion and said inner core comprising a substance whose melting point or decomposition temperature is lower than the temperature to which said resin must be heated to be extruded and to the apparatus and process for making such composite structure.

Abstract: For producing a plastic film having a plastic fastener, with male and female interlockable profiles, and accessory strips, such as ribs and strips, in preparation of a reclosable plastic bag, there is provided a first forming die which extrudes the accessory strips, a separate second forming die which extrudes the fastener, a pair of nip rolls for press-bonding the accessory strips onto the surface of the film being fed in the vicinity of the first forming die, and a bonding roll for receiving the film with press-bonded accessory strips and the fastener from the second forming die placed onto the film surface such that the fastener is bonded to the surface of the film at the bonding roll by virtue of heat.

Abstract: The invention provides a rotary extrusion head comprising a head body having a sole piece and in which are formed a cylindrical through bore and a duct for supplying the material to be extruded, which extends between the sole piece and the cylindrical bore.According to the invention, this extrusion head further comprises a mandrel mounted for rotation in the cylindrical bore, a die holder fixed to a first end of the mandrel and a pinion or a pulley fixed to the second end of the mandrel, the die holder being held against the head body by means immobilizing the mandrel in translation which are mounted on the same side as the second end of the mandrel and which bear on the head body, the mandrel, the die holder and the immobilization means being bored axially.

Abstract: Apparatus for handling a pastry product of the type comprising a pastry sheet unit and a film sheet unit which are adapted to be rolled together so that in the finished roll the film sheet unit is substantially interposed between the adjacent layers of the pastry sheet unit, the film sheet unit and pastry sheet unit each having a leading edge and trailing edge. In one aspect the apparatus is adapted to direct and apply the film sheet unit to a surface of the pastry sheet unit at a film application station so that the leading edge of the film sheet unit overlies and is disposed rearwardly of the leading edge of the pastry sheet unit. In another form of the apparatus it is characterised by transport means for transporting the pastry past the film application station whereafter the units are transferred to delivery means which presents the units to the rolling means the direction of travel of the transport means being at right angles to that of the delivery means.

Abstract: An apparatus for forming a slide fastener chain includes an injection molding machine with a mold, a sprue and runner cutter adjacent the mold, a pelletizer adjacent to the cutter for reducing the sprues and runners to particle size which are delivered to a first hopper, a second hopper for fresh molding materials, a mixing hopper for blending the used and fresh molding materials to be fed to the mold, and controls for regulating the proportions of used and fresh materials.

Abstract: An apparatus of manufacturing a slide fastener with a separable end stop according to the invention includes: a step which is carried out while separating engaged stringers of continuous length which have space portions disposed at regular intervals in their longitudinal directions and which consists of conveying the separated stringers through an injection molding station; suspending the operation of conveying the stringers in such a manner that one of the space portions is disposed at the injection molding station; and simultaneously injection-molding upper stops and pins which constitute a separable end stop on the stringers at each end of the space portion.

Abstract: An apparatus is disclosed for forming elongate structures of composite materials. The apparatus includes a plurality of forming dies for preheating, heating and then cooling an elongate portion of composite material while shaping the material within an internal passage. A pulling device is utilized to continuously draw elongate strips of composite material through the forming dies. The pulling device includes two opposed endless track devices. One of the endless track devices serves to mount a plurality of engagement dogs, each having a substantially flat surface for engagement of the elongate portion of composite material. The other endless track device serves to mount a plurality of pivoting engagement dogs, each having a curvilinear surface wherein increased resistance by said elongate strip of composite material will pivot the curved surface into closer alignment with a corresponding flat surface, thereby tightening the grip of the pulling device on the elongate strip of composite material.

Abstract: A linear material 20 is once wound on a winding drum 22, and then wound on a winding core 11a by a winding disk 21. The winding disk 21 periodically reverses the direction of rotation. During the winding operation, the linear material is impregnated with a synthetic resin.

Abstract: Moulding equipment in which cooperable male and female connectors of a mould and a dispensing container for mouldable material have means to lock them together. This includes a locking member which is manually moveable in pivotal fashion upon one connector into and out of a locking position with the other connector.Opposing surfaces of the locking member and the other connector relatively move across each other during movement of the locking member while offering sufficiently low resistance to movement to allow for manual operation. During transfer of the material into the mould, the opposing surfaces are urged together by moulding pressure to increase resistance to movement of the locking member out of the locking position. In preferred constructions, the locking member has a cam surface which ensures the need for a progressively increasing unlocking force to enable release of the locking member during transfer of the mouldable material.

Abstract: A runner structure composed of a runner and a sprue is discharged from an injection molding machine into a chopping apparatus having a first cutter mechanism and a second cutter mechanism. The runner structure is guided by a guide mechanism in the chopping apparatus toward the first and second cutter mechanisms. The sprue is cut off from the runner by the first cutter mechanism, and then the runner and the sprue are chopped by the second cutter mechanism. The first cutter mechanism has a lower cutter for stopping the runner structure by engagement with the sprue, and an upper cutter movable into coaction with the lower cutter for cutting off the sprue. The second cutter mechanism includes a feed roller for feeding the runner intermittently and a cutter reciprocably movable for chopping the runner on the feed roller. The chopped pieces are discharged through a hopper and delivered into the injection molding machine for recycling.

Abstract: The apparatus comprises a pair of calibrating rollers, rotating in opposite directions, therebetween a pre-extruded rubber profiled member may be inserted having a undefined cross-section, a driving kinematic link being further provided for driving both the calibrating rollers with the same peripheric speed.

Abstract: A double extruder for the production of a two-layer tubular extruded product, which extruder comprises a treating screw (8) rotatably mounted in a housing provided in a frame (2) and forming a ring-shaped treating space (21) between the frame and the screw, and inlet and outlet channels (13, 22, 23) extending to the periphery of the treating screw for supplying materials to be extruded into the treating space and for discharging the materials therefrom, and extrusion means (14) mounted in the frame and communicating with the outlet channel. The treating screw is tubular and forms two separate treating spaces together with the frame, each space extending from the outer periphery of the treating screw around the end edge to the inner periphery of the screw. The outlet channel is ring-shaped and joins radially the inner periphery of the tubular treating screw.

Abstract: An extruder assembly for admixing and reacting a hydrolyzable silane reactant with a thermoplastic polymer to produce a water-curable, silane modified polymer and for extruding the resultant polymer into a shaped product.

Abstract: The invention relates to a device for injection moulding insulating disks onto the inner conductor of high-frequency coaxial cables comprising a cylindrical tool carrier which is rotatable about its axis and at whose circumference are located radially arranged forming nests for forming the insulating disks and which are provided with moulding ducts extending radially outwards, wherein the forming nests, through the centers of which passes the inner conductor, can be opened and closed. The injection nozzle of the device takes the form of a slot, the longitudinal direction of the slot extending in the circumferential direction of the tool carrier and the longitudinal dimension of the slot being larger than the diameter of the moulding ducts. The film of moulding material formed on the surface of the tool carrier and interconnecting the individual insulating disks is torn off the insulating disks by means of a suitable separating member at an area of the tool carrier at which the forming nests are still closed.

Abstract: A process and apparatus for direct extrusion of thermal barrier profiles is disclosed. The process comprises the steps of providing an elongated structural member having a lineal cavity therein with an open portion, driving the elongated member past a filling die while simultaneously guiding the elongated member so as to positively locate the open portion of the lineal cavity with respect to the filling die in order to completely close the cavity at the location of the filling die, continuously extruding thermoplastic along the cavity through a fluid flow passage in the filling die, and removing a lineal portion of the structural member opposite to the open portion of the lineal cavity to form the thermal barrier profile.

Abstract: One or more inner bands are employed to cooperate with an outer band and a cavity wheel or inner molding member wherein portions of the inner band or bands together with the outer band and the cavity wheel or inner molding member are utilized to continuously form the cavities for continuously molding articles. The inner band or bands are employed to form core members, intermediate cavity wall portions, and/or stripping members for the molding cavities.

Abstract: A manually operable device which is for forming contraction joints in wet concrete and which includes a quantity of ribbon held within an enclosed housing. The ribbon is fed through a channel part in the device housing and into the wet concrete.

Abstract: An apparatus for manufacturing a continuous slide fastener stringer including a row of injection-molded coupling elements secured to a stringer tape along a longitudinal edge thereof, includes a pair of fixed and movable mold members through which the stringer tape is fed by a tape advancing means, and a pair of upper and lower tape shifters mounted on the movable mold member for moving the stringer tape between a first position in which a part or portion of the stringer tape lies flatwise on a mold surface of the movable mold member and a second position in which the tape's part is spaced from the mold surface and held out of interference with a feeler projecting from the mold surface of the movable mold member. During the advancing movement of the movable mold member toward the fixed mold and in timed relation to the stringer-tape advancing means, the tape shifters are movable with respect to the movable mold member to place the tape's part in the first position.

Abstract: Mortar is deflected continuously onto a moving carrier sheet from a distributor belt which is moving transversely to the carrier sheet by a plow which shuttles across the length of the distributor belt. An uninterrupted flow of mortar is spread across the sheet. The layer of mortar on the carrier sheet is slightly undulatory in the machine direction but a lateral cross section has a substantially uniform thickness so that a flat broad ribbon of mortar emerges from under a screed downstream from the shuttle plow.

Abstract: An improved apparatus and method are disclosed for forming molded plastic articles, such as support devices, having wooden or otherwise fibrous backing members bonded thereto. The apparatus includes an injection molding machine within which the molded plastic articles are formed. Continuous strips of backing material are provided, and are drawn through the apparatus by a novel feed roller mechanism which is intermittently operated in synchronization with the cyclical operation of the injection molding machine. A punch and die mechanism associated with the molding die assembly of the injection molding machine severs discrete backing members from the continuous strip of material, and thereafter advances the severed backing members to a portion of the periphery of the one or more molding cavities defined by the molding die assembly of the machine.

Abstract: An ornament plate supplied into a mold is punched out from a continuous sheet by a peripheral knife edge at an end of a press core member and advanced to a place which defines a part of a molding cavity. The press core member has a concave space in the end face thereof surrounded by the knife edge, the area of the concaved space being equal, in developed view, to the plane area of the punched ornament plate. The press core member has applied therethrough vacuum by which the punched ornament plate is attracted to the concave end face of the press core member during injection of molten thermoplastic resin.

Abstract: Apparatus for making a tablet of soap containing a perfume-containing core, hollow or solid, fabricated from a hard plastic material, either thermosetting or thermoplastic. Soap from the resulting composite tablet is usable until the core is washed clean and is aromatized until the core is washed clean. This obviates the wastage of soap which normally occurs as a conventional soap tablet becomes very thin on use and, at the same time, gives rise to a continuously aromatized soap tablet.

Abstract: Deep-drawing machine for manufacturing containers out of thermoplastic foil material having an arrangement for inserting into the hollow mold prior to the deep drawing step a banderole-shaped strip section. The machine includes support means for a roll of foil material, means for transporting the foil material, a heating arrangement as well as a forming arrangement and said forming arrangement consists of a stationary counter mold and the hollow mold movable perpendicular to the foil plane, which is pressed against a counter mold after the heating of the foil. After the container is formed by means of a pressure medium, the strip sections, which have been introduced into the hollow mold, are sealed onto the container. The arrangement for inserting the banderole-shaped strip sections into the hollow mold includes a winding mandrel which is stationary with respect to the axially movable hollow mold.

Abstract: A network of reinforcing fibers is pressed against the surface of an underlying carrier sheet by the weight of a concrete mix. A vertical gap between the sheet and the network is created so that the concrete mix may penetrate the voids of the network and spread out on the underlying sheet to embed the fibers.

Abstract: Reinforced facings, including reinforcing webs entrained in hydraulic cement via a slurry bath, adhere to a nailable lightweight aggregate cementitious core to form a panel web. The reinforced web is formed on abutting conveyed carrier sheets, and the web is transversely cut, between the sheets, while moving or when stopped, in response to sensing of the sheets. The cut panels, on respective sheets are stacked for curing without damaging the panel edges and in a manner to minimize panel flex. Slurry bath, facing applicators, and cutter and stacking apparatus are included.

Abstract: A device for rendering cables such as electric cables, telecommunication cables, optical cables, longitudinally watertight by the block-wise application of a sealing compound into the cable core by means of an intermittently displaceable nozzle which is periodically displaced by a driving element, the speed of the driving element being synchronized with the linear speed of the cable core.

Abstract: An improved heat-forming deep-drawing molding machine for producing receptacles with thermoplastic banderoles, which machine includes a mandrel which coacts with a mold or a forming chamber for forming a closed banderole coil or loop. The mandrel has substantially the shape of the mold cavity. The mandrel slidably reciprocates in the mold cavity relative to the mold or the forming chamber and has a fixed transverse section relative thereto. The mandrel is composed of stationary and rotatable parts relative to the forming chamber. The rotating parts coact with the curved or round parts of the forming chamber or mold cavity. The rotating parts include suction channels which bias the banderole thereagainst so as to effect an advancing movement of the banderole in the forming chamber. The suction channels are operatively connected to a vacuum source.

Abstract: The apparatus has a plurality of open-ended female dies with a movable lower male die positioned in the lower end of each one. A supply box is shiftable over the female dies to deposit concrete therein, following which a plurality of upper male dies are moved down into the female dies to compact the concrete therein into chairs. Wire supply means feeds wires through the upper male dies and into the concrete in the female dies before the concrete is compacted. After the wires have been cut above the female dies, the upper male dies are retracted and the lower male dies are moved upwardly to eject the compacted chairs from the female dies.

Abstract: An apparatus for the production of ravioli and like products characterized by a base, sidewalls rising from the base, a forming roller rotatably coupled to the sidewalls, a platen roller rotatably coupled to the sidewalls in proximity to the forming roller, and means for feeding two sheets of ravioli dough and associated ravioli filling between the two rollers. The forming roller is generally cylindrical and is provided with a cutting grid around its curved surface and a number of ravioli forming areas located within the interstices of the cutting grid. Each ravioli forming area includes a centrally located, saddle shaped relief surrounded by at least one, but preferably two, sealing ridges.

Abstract: An apparatus for repairing leaks in underground pipe which comprises a carriage movable axially along the pipe, a flexible and stretchable tubular cover sheet surrounding a portion of the carriage, a plurality of power driven back-up plates supported by the carriage and expandable radially to press the sheet into intimate contact with the internal wall surface of the pipe, and retractable radially for separating the sheet from the pipe wall, and a conduit inside the cover sheet for delivering grout radially outwardly through the cover sheet.

Abstract: An apparatus for introducing a candy filling forced out of a conveyor into a rod-forming machine in which the candy composition receives its final shape. A filling tube extends into an interspace between conical rolls of the rod-forming machine and a rigid connecting pipe is hingedly inserted between the conveyor and the filling tube by way of movable pipe fittings.

Abstract: A packaging device for sealingly closing an upper foil and a lower foil utilizing a framelike constructed welding device which has a separate drive for welding together the lower and the upper foil, of which at least the lower foil is formed into containerlike segments and is moved, held by a chain at the sides thereof, through the packaging device. The packaging device has an evacuating chamber which is formed of two boxlike halves, of which one half is stationary and the other half is vertically movable. One of the halves has a framelike welding device embodied therein.

Abstract: An apparatus for manufacturing a fastener chain having solid sections by repeating the steps of providing a tape having perforated sections which include holes punched in a longitudinal edge of the tape, and solid sections, which are free of holes, alternating with the perforated sections, supplying the tape so that the perforated section thereof is placed between a stationary mold and movable mold, applying tension to the tape to stretch it, and then injection-molding fastener elements onto the tape at the holes. Stretching of the tape is accomplished by a sprocket wheel provided adjacent a freely rotatable drum. Teeth on the circumferential surface of the sprocket wheel are caused to recede below the circumferential surface of the freely rotatable drum when a solid section of the tape passes over the drum.

Abstract: A plastics molding device is disclosed, which provides a plurality of cavities for the simultaneous molding of a plurality of flash caps, and including a punch die, operably supported relative to an outer end of each flash cap cavity, to punch a disc shaped member from a sheet of an appropriate synthetic material, and to position each disc in one of the cavities, in a proper position, to define integral outer end walls in the flash caps, when a suitable molten plastic material is injected into the respective cavities by way of appropriate runner grooves, in a generally conventional manner. Prior to injecting the plastic material, a core pin is advanced into each cavity in a simultaneous relation to the operation of the punch die, to clamp the respective disc members in outer ends of the cavities.

Abstract: An apparatus is disclosed for continuous distribution of a latex or urethane foam composition on a movable substrate to produce a foamed sheet material such as a foam backed carpet. The distribution apparatus comprises a generally cylindrically shaped rotatable member and at least two attached distribution means which may take the form of either modified doctor rolls or modified doctor blades. The distribution surface of each of these distribution means may differ and may be either smooth or patterned with a variety of grooves or serrations thereby providing means for producing foamed sheet materials with surfaces which are either planar or patterned with ridges and valleys. Means are also provided to readily change the thickness of the distributed foam and for oscillating the distribution apparatus to produce a surface with wavy as opposed to linear patterns of ridges and valleys. All of these operations may be accomplished without interrupting the continuous process.

Abstract: One or more inner bands are employed to cooperate with an outer band and a cavity wheel or inner molding member wherein portions of the inner band or bands together with the outer band and the cavity wheel or inner molding member are utilized to continuously form the cavities for continuously molding articles. The inner band or bands are employed to form core members, intermediate cavity wall portions, and/or stripping members for the molding cavities.

Abstract: The present invention concerns the manufacture of objects made of plaster, essentially in the form of boards and, specifically, the pouring onto a moving conveyor of a mixture of plaster and water into a reservoir with an open bottom installed on top of said conveyor.It proposes to integrate the upstream rear wall of the reservoir within a surface of greater dimensions than the rear wall, and displacing said continuously, with the purpose of presenting a different portion of the surface as the upstream rear wall.The invention allows continuous cleaning of the upstream rear wall without disturbing the pouring process.

Abstract: Plastic molding apparatus is disclosed for forming a series of molded connector bodies along a molded strip segment. By repeating the molding cycle, an additional strip segment is simultaneously molded and joined to a previously made strip segment, so that repeated cycling of the molding machine provides a molded continuous strip interconnecting a series of molded bodies.

Abstract: The present invention relates to a device for severing and transferring a label, wherein the transfer device comprises, on the one hand, for the free end of the label web, a receiver member provided with elements for mechanically holding the edges of the web, and mounted downstream of the severing device on a support which is movable along a straight line transverse with respect to the web between the position of reception of the web end and the immediate vicinity of one of the open parts of the mold and, on the other hand, a pneumatically controlled push member sliding in the support and intended for expelling the severed label from the receiver member and for pushing it against the lateral face of a mold part when this member is in the immediate vicinity of the part.

Abstract: A plurality of reinforced plastic parts are simultaneously molded from separate bundles of resin impregnated strands wound about individual frame sections of a substantially planar frame assembly. A loading station includes a dual-acting elongated carrier engaging the multi-sectioned frame assembly and initially rotatable to wind the bundle of strands thereon. Subsequent reciprocation of the carrier delivers the wound frame assembly to a molding station provided with a plurality of mating pairs of molded sections and having displaceable frame supporting and bundle clamping assemblies for engaging the wound frame assembly and severing opposite ends of the bundles as the mold sections close within the individual frame sections.

Abstract: A reinforced plastic product is molded from a bundle of resin impregnated strands with the bundle being sequentially advanced from a supply station to a molding station by two pairs of clamping assemblies simultaneously reciprocating in opposite directions with the forward moving pair gripping the bundle and pulling it to the molding station as the rearward moving pair is shuttled back past the forward moving pair toward the supply station to grip the bundle prior to molding of the forward gripped bundle.

Abstract: A ridge remover for smoothing and shaping rod surfaces where jointure marks occur in fibrous rod manufacture when made using a porous belt garniture device.

Abstract: A machine for compacting and moulding concrete mix or other plastic materials comprises, in combination:(a) a body structure;(b) a tunnel shaped moulding member having a top and two sides and open at its bottom, the moulding member being attached to the body section;(c) an opening in the top of the moulding member adjacent to the body section;(d) a hopper adapted to carry concrete mix or other plastic materials, and feed the mix or materials to the opening, the hopper being attached to the body structure;(e) a substantially vertical ram plate having a shape which corresponds to the cross-sectional shape of the moulding member, the ram plate being located within the moulding member and being adapted to move reciprocally from a first position adjacent to the body structure to a second position wholly within the moulding member, without oscillation of the ram plate;(f) means to cause the reciprocal movement of the ram plate, the means being carried by the body structure, and(g) means supporting the body structur

Abstract: The invention provides a process and apparatus for producing fabric-reinforced, thin concrete panels suitable as a backer board for construction materials such as ceramic tile, slate and thin brick. A process is described whereby the components of the panel are deposited on a web of disposable carrier/release material such as polyethylene coated paper while moving on a conveyer belt to form a continuous strip, the strip is cut into panels and the wet, uncured panels are stacked by means of an air-float stacking unit, then subsequently cured.

Abstract: An apparatus and method for mounting thermoplastic materials directly upon a string medium. A hot runner system or three-plate mold provides the cavities for integrating the molten thermoplastic material and string medium. Molten thermoplastic is injected at a plurality of input apertures along a bifurcated mold, the bifurcated mold having complementary cavities joined by subrunners to transmit the molten thermoplastic material into each cavity. Each cavity is adapted to form a member which is to be permanently affixed on the string medium and includes aligned channels for receiving the stringed medium prior to injection of the molten thermoplastic material. The stringed medium is disposed within the channels prior to injection of the molten thermoplastic material. Under appropriate temperature and pressure conditions, the injected thermoplastic runner flows into subrunners filling each cavity of the bifurcated mold, thermoplastic bodies forming about the stringed medium in a permanent manner.

Abstract: A field transplant system including a machine for sequentially forming groups of polymerized soil plugs having seed receiving recesses in one end thereof and supported on a carrier, and in certain cases interconnected by strips, the carrier being used to transport the soil plugs through a seeding station and then to a germination station and then to a growing station either in the flat or on a plant turning machine in a greenhouse to grow the germinated seeds to transplant size, and then using the carrier to transport the soil plugs with the transplants growing therein to the field for transplanting by an automatic transplanter; several forms of soil plugs are disclosed, and several methods for supplying seeds to the soil plugs are disclosed, as well as an improved method of mounting a mat of soil plugs on the cylinder of a plant turning machine.