Abstract: The disclosure embraces a method of and apparatus for processing or forming bodies of confections or desserts that become viscous or of paste-like consistency at reduced temperatures such as dairy ingredients including ice cream, ice milk or other edibles such as aerated marshmallow or the like, the bodies of confections being of disc-like configurations having central voids, providing a supply of a mixture embodying a viscous or paste-like edible and fragments of solid edible materials, successively severing metered quantities of the mixture from the supply by a sharp instrumentality, and moving the metered quantities of the mixture by the instrumentality into the central voids of the disc-like bodies.

Abstract: In a ribbon cable extrusion die assembly, a large plurality of fine electrical conductor wires, numbering from 20 up to 50, 60 or more, are led through a core tube via individual quills. Molten plastic insulating material is delivered to the exterior of the core tube, and surrounds the plurality of the conductor wires as they emerge from the core tube to enter the extrusion die. The aligned array of conductor wires and the molten plastic insulating material pass together through the extrusion die, which incorporates a cylndrical die passage for each individual conductor wire, with web passages connectng the cylindrical passages to form a unitary ribbon cable extrusion emerging from the extrusion die. The guiding quills are individually removable from the core tube, in response to the actuation of automatic wire breakage sensing and alarm systems for quick replacement of a broken conductor wire by a new unbroken conductor wire.

Abstract: Apparatus for producing a continuous flexible tubular conduit having a plurality of helically wound reinforcing-electrical wires is provided wherein the apparatus has means for forming a plurality of wires into a corresponding plurality of substantially identical continuous non-rotating helical coils without entanglement of such wires and an extruder head for extruding a polymeric tube around the coils with the coil turns coaxially aligned and alternately arranged to complete the tubular conduit.

Abstract: A unitary head, adapted to attachment to the outlet of an extruder contains main inlet duct for passing hot extruded plastic material to a flow regulator which divides and controls the flow of the plastic material into a plurality of calibrated passages. The calibrated passages terminate at jaws which are adapted to grip and hold dies. The plastic material passes from the calibrated passages into the dies and coats the cable passing therethrough. An electric heater on the housing controlled by a thermostat in thermal contact with the housing maintains the housing at working temperature.

Abstract: Apparatus for manufacturing precast, prestressed, hollow-core, concrete slabs, including an extruder which is movable along a fixed casting bed to extrude from a relatively dry concrete mix a slab having longitudinally extending hollow cores and grout keyways extending along the slab sides. Multiple, core-forming augers in the extruder are shaped and positioned with respect to a feed opening in the extruder in a manner which eliminates cavitations in the slab and provides smooth, well formed slab surfaces and proper bonding between the concrete and prestressing wires.

Abstract: An extrusion head for extruding a plastomeric or elastomeric material on at least two filaments having a diameter of the order of 0.1 mm. and having a high modulus of elasticity while maintaining a constant spacing between the filaments and a process for such extrusion. The head comprises a mandrel with a cylindrical portion and a frusto-conical portion, the mandrel having grooves equal in number to the number of filaments extending along the surfaces of both portions for guiding the filaments. The frusto-conical portion has channels between the grooves for feeding the material between the filaments. A die with an opening having parallel walls for guiding the filaments and having a conical surface spaced from the frusto-conical portion is mounted adjacent the latter to provide a space for flow of the material. A further element adjacent the die may be used to extrude further material over the filaments embedded in the material extruded therebetween.

Abstract: A method and apparatus for continuously coating a thread or core with a thermoplastic is disclosed wherein a flowing stream of the plastic, in the form of a melt or liquid monomer is used to convey the core from one or more elongated and heated guide tubes into and through one or more elongated and cooled molding tubes axially aligned with each guide tube whereby the thread or core is automatically centered in the tubes and a uniform outer coating of hardened plastic is applied. The liquid monomer can be treated with a suitable activator or catalyst before entry into the mold tubes or at an intermediate mixing zone located between the exit part of the guide tubes and the inlet part of the cooling tubes. The mixing zone is larger in volume than the tubes and provides an off-center convolution about the exit ports of the guide tubes and coaxial conical exit ports converging into the entry ports of the molding tubes.

Abstract: Rubber hose with textile thread reinforcing is produced by extruding an inner tube of rubber material, cooling the extruded tube, applying a covering of textile thread over the inner tube and then extruding an outer layer of rubber material over the textile layer. Just before the outer layer is extruded on the inner tube it is heated by subjecting it to an ultrahigh frequency field. The outer layer is extruded on under a vacuum so that the inner tube which has been softened by the UHF heating is supported by the resulting pressure differential. The resulting hose is then vulcanized. By reason of the preheating of the inner tube, the inner and outer rubber layers are at approximately the same temperature and hence vulcanized equally. The application of a vacuum during the second extrusion has the further advantage of avoiding air inclusions between the inner and outer rubber layers.

Abstract: An apparatus for making a flexible non-skid strip of flattened semi-circular cross-section.

Abstract: Extrusion device and the continuous manufacture of a handrail of elastomeric material, C-shaped in cross section.The extrusion device is provided with separate and distinct openings for the introduction of the various elements of the handrail, and with means which shape continuously said elements and arrange them continuously in mutual correct position into elastomeric material.

Abstract: An improved barrier forming apparatus and method whereby a barrier is formed continuously over a surface, the barrier having continuous reinforcing rods extending the length of the barrier and having cage reinforced standard supports at predetermined intervals along the length of the barrier. An improved barrier forming assembly is disclosed comprising a concrete forming member having a form cavity extending therethrough; a concrete passing member having a concrete delivery opening for passing concrete or the like to the form cavity; and a positioning assembly comprising a support shaft and a door member pivotally supported at a forward end of the concrete forming member, the barrier being extrudable continuously via the form cavity from a rearward end of the concrete forming member.

Abstract: This concerns a process for manufacturing extrusion sections made of a light weight metal, using an extrusion tool with a single hole die, whereby several extrusions are produced simultaneously using a common single hole in the die. The device for carrying out the process allows a movable steel strip to pass through the common die hole this dividing it up into separate extrusion chambers.

Abstract: Apparatus for forming concrete articles in which augers convey "no-slump" concrete mix to a molding station with sufficient force to consolidate the mix. Friction is reduced at form surfaces of the molding station by high frequency vibration, greater than 22,000 vibrations per minute. Core-forming mandrels are disposed axially lateral of the line of flight of the augers. The concrete can be prestressed utilizing pre-tensioning or post-tensioning mechanism and provision is made for transverse reinforcement of the concrete.

Abstract: An extrusion head for extruding a plastomeric or elastomeric material on at least two filaments having a diameter of the order of 0.1 mm. and having a high modulus of elasticity while maintaining a constant spacing between the filaments and a process for such extrusion. The head comprises a mandrel with a cylindrical portion and a frusto-conical portion, the mandrel having grooves equal in number to the number of filaments extending along the surfaces of both portions for guiding the filaments. The frusto-conical portion has channels between the grooves for feeding the material between the filaments. A die with an opening having parallel walls for guiding the filaments and having a conical surface spaced from the frusto-conical portion is mounted adjacent the latter to provide a space for flow of the material. A further element adjacent the die may be used to extrude further material over the filaments embedded in the material extruded therebetween.

Abstract: A process for the manufacture of composite sections comprising at least two components. This is achieved by means of extrusion in particular using a light metal matrix, whereby at least one insert or similar component is fed into the stream of metal being extruded, on each side of the main axis in the region of the extrusion die bearing and covered all over with light metal as a result of pressure from all sides.

Abstract: A method and apparatus for tensioning dental floss is disclosed for use in the molding of a tooth cleaning dental instrument including a bow-shaped member having a first end and a second end with dental floss tensioned between the ends. A suitable plastic-like material injection mold having cavities for the molding of the dental instrument and having line cavities for receiving the dental floss is used in conjunction with the apparatus of the present invention. Dental floss is supplied from suitable sources and directed by guide members to tensioning members including primary and secondary tensioning members. The secondary tensioning members provide supplemental tensioning of the dental floss during the cool down period after the injection of the plastic-like material into the mold. The dental floss is tensioned by primary tensioning members during the injection of the plastic-like material into the mold.

Abstract: Apparatus for making a composite container comprising a blank and an injection moulding thereon, the apparatus comprises a pair of tools relatively movable between open and closed conditions in the latter of which they define a mould cavity for receiving a blank and injected mouldable material, and a pair of guides for holding a blank between the tools in their open condition, the blank being positioned to be engaged by one tool in its movement to the closed tool condition between the guides, the guides being insufficiently spaced apart to allow said movement of the one tool in their guiding condition, wherein each guide in the region of movement of the one tool therebetween includes a member movable between an operative guiding position and an inoperative position permitting said movement of the one tool by relative movement of the one tool and the guides.

Abstract: An apparatus for the continuous fabrication of fiber reinforced plastic profile members or sections by impregnating fibrous mats with a settable liquid plastic reaction mixture in a continuous impregnation device. Arranged after the impregnation device is a transport- and forming device for drawing-through, shaping and hardening the impregnated fibrous mats. The continuous impregnation device embodies two superimposed contact- and guide platesarranged in spaced relationship from one another, these plates conjointly forming a continuously tapering inlet zone followed by an outlet zone and at both sides of the plates two edge guiding zones communicating with the free atmosphere, the edge guiding zones serving for the guiding of the side or marginal edges of the throughpassing fibrous mats.

Abstract: Apparatus for producing a continuous flexible reinforced tubular conduit is provided and utilizes a plurality of elongated rigid mandrels each having a non-yielding outside surface and such mandrels are moved continuously through a fabrication area while operatively associated in aligned end-to-end relation where at least one wire is formed around the mandrels in a continuous non-rotating helical coil. An extruder head is provided and extrudes a plastic tube around the coil which is urged and bonded thereagainst to define a conduit whereupon the conduit is subsequently separated from its associated mandrel.

Abstract: A method of and device for producing reinforced profile belts, especially transmission belts, of extrudable material in a continuous manner successive portions of an endless belt are passed over a peripheral but different section of constant magnitude of a rotating wheel, preferably a wheel with peripheral teeth, so as together with said wheel to form a closed arc-shaped mold chamber. This mold chamber is sealed toward the outside while reinforcing strength members and extruded material from which the respective belt is to be made are continuously fed into the mold chamber.

Abstract: A method of manufacturing a reinforced flexible tube in which a hard synthetic resin spiral core is embedded in and fused to a soft synthetic resin matrix through the medium of a semi-hard synthetic resin adhesive layer and the apparatus for carrying out the method of manufacturing the tube. Hard and semi-hard synthetic resin materials are simultaneously extruded from extruders to form a first composite linear element in which these two separate materials are firmly bonded together owing to the small extruding temperature difference between these two separate materials. The first composite linear element is preheated to make the temperature difference between the linear element and a soft synthetic resin material to be extruded on the linear element small.

Abstract: A pile extruder machine includes a hopper and a head or mandrel assembly extending from a support, into a moulding chamber assembly. Feed augers are provided on each side of the head or mandrel and these feed augers compress concrete from the hopper into the moulding chamber around the head or mandrel thus forming the pile and the compression moves the machine forwardly so that the pile is extruded rearwardly upon a pallet. A die assembly forms links of coil reinforcing around a coil support tube and the die assembly can be adjusted so that both the pitch and diameter of the lengths of coil can be adjusted. These coils are fed into the concrete mass at the base of the hopper and surround longitudinally extending reinforcing wires. They are drawn into the pile as it is formed and thus reinforce the piles circumferentially around the central aperture formed therein thus giving longitudinal and circumferential reinforcing to the finished pile.

Abstract: This invention relates to an apparatus for reinforcing extruded elastomeric or plastic tubing in which two sets of reinforcing filaments are helically wound around the tubing in opposite directions and the filaments are introduced into the tubing through an annular opening.

Abstract: Several thermoplastic tubes to be bonded to one another are jointly extruded through concentric annular orifices while cool air is blown from annular Venturi nozzles in concentric streams past the outer surface of the outermost tube and past the inner surface of the innermost tube to accelerate their solidification. The inter-tube space or spaces can be inflated by similar air streams blown at least in part along their confronting tube surfaces. The return of the injected air from the innermost and inter-tube spaces takes place through conduits disposed midway between the nozzles.

Abstract: An apparatus is provided for the continuous molding of hardened resin construction members reinforced with fiber material precisely positioned and arranged during the continuous molding process. The reinforcing fiber material in the form of continuous rovings, woven webs, fabric, fleeces, etc. and having a sizing is fed into an elongated hollow molding duct where the material is first compressed and heated to bond the fibers together at their points of contact to form a grid structure. Synthetic resin is injected into the duct intermediate its ends to impregnate the grid structure and be shaped by the molding duct with the reinforcing fibers contained within the resin. The synthetic resin is then hardened by heating as the shaped resin passes further along the duct forming the finished construction or profile member.

Abstract: The invention concerns electromagnetic wave guides. It has as its object a wave guide comprising a hollow conductor consisting of layers of porous dielectric or conductive materials, bound together and to the hollow conductor by a resinous compound, at ambient temperature, in a very short time, in contact with a gaseous catalyst. It is applied, to great advantage, to the continuous manufacturing of wave guides.