Abstract: A pultrusion apparatus and process for impregnation of multiple fiber tows with a thermoplastic resin wherein an impregnation vessel having an entrance and an exit end is provided with a fiber control insert formed of spaced cylindrical rings suspended therein, with a resin flow control device being suspended horizontally within the rings. A combined resin meter and profile die is attached to the impregnation vessel exit end with a cooling die connected thereto. A pulling mechanism pulls the fiber tows through melted resin contained within the impregnation vessel and into a stepped decreasing diameter passageway in the resin meter and profile die to remove excess resin and shape the impregnated fiber into a useful structure before it is cooled below the melting point of the resin by the cooling die. In one embodiment, a cut-off station is provided adjacent the pulling mechanism to cut the cooled impregnated fiber structure into the desired lengths.

Abstract: A tip holder for assembly in a through axial bore of a cross-head die body to hold a die tip in a predetermined position and to control flow of a molten coating material about the die tip and filamentary member which is moved axially through the die for coating purposes. An annular groove is formed about the surface of the tip holder adjacent a radial bore in the body through which the molten material is introduced. In a first embodiment, the annular groove communicates through a plurality of axial grooves in the tip holder with an annular cavity through which the material flows to the die orifice through which the filamentary member and coating material exit the die body. In a second embodiment, the material flows from the annular groove over an annular lip at the forward end of the tip holder.

Abstract: A continuous FRTP prepreg manufacturing apparatus comprises an extruder, a crosshead having a main body internally provided with a resin chamber for containing a molten thermoplastic resin extruded therein by the extruder and joined to the discharge end of the extruder, a cooling unit disposed outside and near the exit of the main body of the crosshead, and a winding unit for taking up a prepreg. A fiber bundle inlet unit and a fiber bundle outlet nozzle unit are provided respectively at one end and at the other end of the main body of the crosshead. Guide rollers and impregnating rollers are arranged within the main body of the crosshead so that a tension is applied to the fiber bundle during impregnation or so that the fiber bundle is expanded during impregnation and is condensed after impregnation.

Abstract: A method and an apparatus for measuring an electric insulated conductor, in particular a medium-voltage and/or high-voltage insulated conductor, are proposed. Seen in profile cross-section, the insulated conductor (50) comprises a copper conductor, an inner semiconductor, an insulation and an outer semiconductor and is produced in an extrusion device (90) having an appropriately assigned crosslinking section (40). To achieve an even distribution of the two semiconductor layers and of the insulation layer, the insulated conductor (50) is radiated through immediately at the outlet from the crosslinking section (40) and a correction of the die setting in the extrusion device is carried out using the values thus determined.

Abstract: A method and apparatus for a low-cost, single-step method of in-line coating of pultrusion profiles to eliminate surface degradation of pultruded profiles due to outdoor exposure or corrosive attack. The method comprises pulling a combination of reinforcing fibers and resin through a pultrusion die to form a pultruded part, applying a coating to the pultruded part after it exits the pultrusion die and curing the coating on the coated pultruded part. The apparatus contains a pultrusion die for forming a pultruded part of a predetermined shape, a coating die with an exit area generally greater than the inlet area, a coating chamber located between the entrance and exit area of the coating die for applying a coating to the pultruded part, and a curing element for curing the coating on the pultruded part after it exits the coating die.

Abstract: A braided fiber reinforced thermoplastic member is formed by a device, which comprises a braiding device for weaving thermoplastic coated fibers with second fibers onto a weaving mandrel for form a braided preform, and a heating die for melting the thermoplastic of the coated fibers of the braided preform to form a continuous matrix of thermoplastic between the coated fibers and the second fibers. A method for forming a fiber reinforced thermoplastic member comprises coating carbon fibers with a thermoplastic melt, cooling the thermoplastic coated carbon fibers, braiding the coated carbon fibers onto a weaving mandrel with Kevlar.RTM. bias fibers to form a braided preform, and drawing the braided preform through a heating die.

Abstract: The present invention relates to a process for manufacturing a composite thread formed of a plurality of filaments combined with a thermoplastic organic material, which consists in mechanically entraining a thread in a device mounted in the manner of a cross head at the end of an extruder and injecting the material in the direction of the thread and concentrically thereto at a constant maximum radial pressure of less than 50 bars.

Abstract: A twin screw extruder compounds a thermoplastic resin material with a randomly oriented fiber reinforcing material to produce a molten fiber reinforced thermoplastic extrusion from a die. The extrusion is cut into preforms which are immediately inserted into a compression mold for making parts. A unidirectionally oriented fiber reinforcing material can be added in the die. The fibers are monofilaments which are debundled and heated before entering either the extruder or the die.

Abstract: An apparatus (10) for applying gel to a plurality of optical fibers (18) includes a housing (12) having a cavity (14) through which a plurality of separated optical fibers (18) are fed. The gel is provided to the cavity (14) from a gel reservoir (76) via a pump (74) that maintains the pressure and gel level to ensure that the optical fibers (18) are coated with gel to eliminate air gaps and thus prevent sticking among the optical fibers (18).

Abstract: The present invention includes a method of producing a reinforced extrusion product, the product of the method, and the apparatus for making a reinforced extrusion product. The method of producing an extruded composite of the present invention, comprises the general steps of: (a) extruding a longitudinally oriented composite precursor comprising: (1) at least one thermoplastic polymeric material and (2) a core mixture of at least one thermosetting resin and at least one filler material; whereby the thermoplastic polymeric material(s) is/are extruded so as to substantially enclose a space, and whereby the core mixture is disposed in the space; and (b) maintaining the composite precursor under conditions whereby the thermoplastic polymeric material(s) become(s) cooled and the thermosetting resin(s) become(s) cured so as to form the extruded composite of the present invention. The present invention also includes an extruded composite made in accordance with the method of the present invention.

Abstract: A stabilizer guide for guiding a stabilizer, having a material characteristic of fraying, through an extrusion die without fraying and melting the stabilizer during the extrusion of a thermoplastic body molding of a motor vehicle. The stabilizer guide is made up of two halves that join to form a parting line and a slot by which to guide the stabilizer through the extrusion die. The slot extends along the entire length of the stabilizer guide and is located in a different plane than the parting line of the stabilizer guide. By having the slot in a different plane than the parting line, the stabilizer is prohibited from wandering into the parting line. This prevents the stabilizer from fraying and shredding and causing the slot to be obstructed by pieces of the stabilizer. Obstruction of the slot hampers the stabilizer from being guided through the stabilizer guide.

Abstract: An apparatus for forming a chamber member which receives optical light waveguides comprises an extruder head for extruding the chamber member followed by a calibrating device which inserts members into each of the chambers to insure the desired dimensions of each of the chambers and a method of using the apparatus by extruding a chamber member, allowing the extruded chamber member to cool and then calibrating the dimension of the chamber walls of the chambers.

Abstract: A loose tube element including a plastic sheath containing a grease-like material and an optical fiber or bundle of optical fibers or a ribbon of optical fibers is pulled from an extruder crosshead through a cooling bath and around a constant speed capstan. The loose tube element travels around the constant speed capstan a number of times and as it exits the capstan it is subject to a tensile force provided by a variable torque control capstan. The tensile force causes elongation of the plastic sheath, causes the optical fiber to be pulled taut and thereby controls the ratio of fiber length to sheath length within the loose tube element. While subjected to the tensile force, the element is subsequently cooled, causing the elongation of the plastic sheath to become permanent and thus fixing the fiber-to-sheath length ratio.

Abstract: Crosshead apparatus for receiving molten plastic from an extruder to be dispensed as plastic tubing or as a sheathing or jacket about a continuously fed product core such as wire. The crosshead includes a body and manifold within the body having a central passage in which the core to be jacketed is continuously fed. The plastic to be dispensed is constantly heated for temperature stability so as to maintain the flow in a molten state while a predetermined smooth transition flow path forms a substantially annular distribution plane from which the flow concentrically converges about the passing product core at the dispensing site.

Abstract: Apparatus for making a reinforced thermoplastic composite is disclosed. The apparatus is designed for making such composite from a dry blend of expanded thermoplastic pieces and filler particles of ambient temperature. The thermoplastic composite includes a quantity of expanded thermoplastic pieces and a quantity of filler particles suspended by the pieces, with the quantity being up to 60% by weight of the blend. The apparatus includes a first elongate compartment defining a low-pressure compression chamber, and a feeder for sequentially transferring the blend to the first compartment in preselected amounts. A second elongate compartment defines a high-pressure compression chamber with open ends and an entry section structured with a port. The second compartment is positioned adjacent the first compartment so that the chambers are in communication with each other via the port.

Abstract: An apparatus includes an endless conveyor formed with transverse rows of holes each adapted to receive a preform to be filled with ice cream or other edible substances from an upper filler assembly adapted to move intermittently synchronically with the conveyor during operation of the thereof. Under an upper run of such first endless conveyor, in the area at the filler assembly, is a second endless conveyor adapted to move synchronically with the first endless conveyor and carrying transverse rows of liftable and lowerable suction cups which in their turn are adapted to be lifted up through an overlaying row of the holes for engaging and removing a respective preform from a dispenser station in the filler assembly and lowering the preform onto the first endless conveyor while holding it in correct position during the subsequent filling operations. A wall portion is radially spaced around each hole to prevent displacement of filled preforms resting on the first endless conveyor but not fitting into the holes.

Abstract: A cross-head die assembly for applying a coating material, such as plastic insulation, to a continuous filament, such as an electrical wire, includes the usual body with axial bore, through which the filament is moved, and radial bore, through which the coating material is introduced. The assembly further includes a die member, a tip holder and a tip, all positioned and releasably held in assembled relation within the body axial bore. The tip holder includes an annular groove communicating with the body radial bore for flow of molten material through the radial bore and about the annular groove. A flow passage, preferably a plurality of axial grooves in the tip holder, provide flow of the molten material from the annular groove to the die member orifice.

Abstract: Disclosed is an apparatus and method for making a loose tube buffered optical fiber, the apparatus comprising an extrusion crosshead having an inlet and exit port connecting a plastic flow passageway circumscribing another passageway in which there is disposed a grease injection unit having three concentrically disposed tubes, the first tube delimiting a path for optical fiber travel, the first and second tubes spaced apart from one another forming a travel path therebetween for jelly or grease-like hydrocarbon filling material and the third tube (circumscribing the first and second tube) forming a chamber at a terminal end portion, the chamber in communication with the travel paths of both the grease and optical fibers and in which the grease comes in contact with the optical fibers, the chamber being so disposed that the contact point of the grease and fibers is only after the grease and fibers have traveled a majority of the length of the grease injection unit.

Abstract: Coextrusion apparatus for forming tubular elastomeric ply made up of first, second and third concentric streams of elastomeric material and a pair of coaxial helical patterns of individual reinforcing elements wound in opposite direction with respect to each other contained within the first and third streams of elastomeric material and separated by the second stream of elastomeric material. A pair of reinforcing element guides are rotatably mounted within the apparatus between stationary flow channels for the three streams of elastomeric material, and are rotated in opposite directions with respect to each other. The two helical patterns of reinforcing elements and three streams of elastomeric material merge together substantially simultaneously in concentric circles which lie in a plane generally perpendicular to a central axis of the coextrusion apparatus to form the tubular ply. A method for producing such a reinforced tubular elastomeric ply also is presented.

Abstract: Extrusion impregnating device for continuous production of unidirectionally fibre-reinforced polymer mouldings with fibre contents between 50 and 70 vol-%, which makes it possible to produce linear profiles with circular, oval or rectangular cross-sections while at the same time enabling high-quality impregnation and the attainment of excellent mechanical characteristics.

Abstract: The invention provides an extruder die assembly for use in the production of fiber reinforced thermoplastic product which overcomes the problem of poor wetting of the fiber filaments. The die assembly also facilitates the production of fiber-reinforced products having high fiber concentration in the end product. The die assembly includes a cone-shape passage defined by decreasing radius from the inlet to the outlet. A plurality of pins are disposed within the passage. A thermoplastic melt is fed through the die assembly in the opposite direction to that of the fiber feed. As the fiber feed travels through the passage the pins spread the fibers helping to ensure that the molten thermoplastic thoroughly wets the fiber filaments.

Abstract: Disclosed is a light waveguide ribbon mold having a nozzle port shaped to closely receive the heated nozzle of a portable melt adhesive gun. Light waveguides are pulled by hand through a slot in the mold so that the melt adhesive forms a ribbon matrix around the light waveguide. The ribbon cools and hardens upon exiting from the mold.

Abstract: A plurality of cores are covered with the same jacketing material by passing the cores through respective dies of a plate, while flowing the jacketing material through sub-channels in the plate and into coating relationship with the cores. Any of the sub-channels can be shut off by diverting the jacketing material a flow diverting path without affecting the flow in the other sub-channels.

Abstract: The present invention relates to a method and apparatus for forming an extruded plastic lumbar product from a commingled plastic waste feed stock. The apparatus generally includes an extruder portion and a forming portion. The extruder portion includes a compound extruder which compresses and melts the waste product by a sudden transition within a constant pitch conveyor. From the compound extruder, the melt is introduced into a hot melt extruder which is formed so as to prevent vortex of the melt or mixing of the different resins. The hot melt conveyor includes a diminishing pitch along its length and a short transition section and metering section. The hot melt is then formed into a desired profile through a cross-head die in which a series of rovings are introduced into the melt. The rovings serve as a reinforcement for the extruded product as well as define the extruded profile feed rate.

Abstract: The present invention provides an extruder for highly foamed plastic material for coating a central conductor of a coaxial insulated cable with an insulator made of a mixture of a plastic material, preferably polyethylene, and an inert gas, such as nitrogen gas, to serve as a foaming agent. An inert gas is introduced approximately halfway down the extruder through a lead-in portion. At the lead-in portion of the extruder is a vent portion wherein the screw is provided with a plurality of stirring blades extending radially from the screw toward the inner surface of the extruder. These stirring blades provide a mechanism by which the inert gas is mixed thoroughly into the plastic material. The above invention provides an apparatus for producing an insulating material in which an inert gas (such as nitrogen), rather than hydrocarbon chloride fluoride, is used as a foaming agent, thus avoiding potential harm to the ozone layer.

Abstract: A method to produce a fabric reinforced hose product in which the reinforcing fabric therein has a stabilizing yarn therein extending in the longitudinal direction of the hose which is broken when the produced hose member has been flexed in the longitudinal direction.

Abstract: An exemplary pultrusion mandrel of the invention comprises a first portion for arranging a fiber reinforcement substrate thereabout, a second portion having an elongated body and internal heater, and a resin injector system intermediate therebetween and having a plurality of resin injector ports integrally disposed at different angles for wetting inward surfaces of the substrate being formed. The mandrel is preferably used in conjunction with an external die. Also disclosed is an exemplary method for continuous pultrusion.

Abstract: An extrusion device (1) the extrusion head (2) of which features a number of superimposed shaped plates (9, 10, 11, 12) clamped together by a clamping device (3) located and operating externally of the extrusion head (2) about which it defines a releasable ring device; the extrusion device (1) having an automatic release device (4) for separating the shaped plates (9, 10, 11, 12) when the ring device is released.

Abstract: An apparatus for manufacturing a foil web of a thermoplastic with locally secured fittings, for use as tarpaulins or similar articles. The apparatus includes an extruder head with an entirely or mainly downwardly directed ejection orifice and two counterrotating rollers with a nip for calibrating the extruded foil. In a feeding device with a vertical supply magazine, a stack of fittings is accommodated and a guiding device is used to guide fittings into a discharge duct extending towards the roller nip. The guiding device is electrically operated and an electrically controlled stop member with an associated fitting sensing element are arranged at the lowermost end of the discharge duct towards the roller nip for accurate control of the supply of fittings to the roller nip through controlled stopping and releasing of the fitting element as well as the monitoring of fittings in the discharge duct.

Abstract: This invention relates to composite materials formed by thermoplastic materials reinforced by fibers, and to methods and apparatus for forming such materials, where the thermoplastic and fiber components are such as to impart to the composite materials enhanced strength as compared with materials made previously to this invention. An important distinguishing characteristic of the disclosure is that advancing heated fiber is directed to move in one direction and while a flow of heated thermoplastic material is directed to move in a direction opposite to and in intimate impregnating enclosure of the advancing heated fiber, so that shear forces arising between the advancing heated fiber and the directed flow of thermoplastic material promote wetting and impregnation of the fiber by the thermoplastic material.

Abstract: A method of manufacturing a reinforced component of a motor vehicle tire carcass, in particular a body ply (2) and/or tread ply (3), whereby an elongated reinforcing element (5) is fed onto a substrate (7) along a generally sinusoidal path to form a reinforcing layer (29) defined by a succession of straight, substantially parallel portions (27) of the elongated reinforcing element (5) joined successively by curved end portions (28) thereof; the reinforcing layer (29) being moved substantially transversely in relation to the straight portions (27) to cooperate with an extrusion unit (34) which covers at least one surface of the reinforcing layer (29) with a covering layer (27,38)(37a,38a) of uncured elastomeric material.

Abstract: A method for fabricating a rubberized wire sheet passes a plurality of wires through an extruder to coat each of the plurality of wires with rubber to form rubberized wires, and passes the plurality of rubberized wires through a calender roller system to form them into the rubberized wire sheet having a desired width. The rubberized wires may be further coated with rubber when calendered in the calender roller system. This method demonstrates an improvement in rubber impregnatability, topping accuracy, processability, and quality.

Abstract: A method of and apparatus for simultaneously extruding a coating comprising a plurality of layers of dissimilar plastic compounds having substantially different melting points onto a moving electrical conductor wherein the plastic compounds are mechanically and thermally separated and the conductor is centered in the plastic jackets by a center trim guide, said trim guide having replacable guide tips. Separating the two plastics prevents thermal degradation of the two extrudates by causing their melt temperatures to remain substantially constant.

Abstract: Apparatus for producing a drip irrigation conduit having discrete internally located emitter units bonded at axially spaced apart locations of an internal surface thereof, wherein the irrigation conduit is continuously extruded from an extrusion cross head at a first outer diameter and a first linear velocity and is drawn off through a calibrator unit to a second and lesser outer diameter at a second and greater linear velocity (greater than the first linear velocity), the emitter units being continuously supplied on a carrier member which extends from within the extruder cross-head to the region of an inlet of the calibrator unit.

Abstract: In the manufacture of an in-line cored pultruded profile, filler is bonded with polyester or methacrylate type resin and enclosed in fiberglass, carbon or aramid fiber cloth. The cloth is preformed to replicate the desired profile shape by means of a pre-die former and the external surface of a hollow duct. Filler is delivered into the interior of the duct by a variable output venturi blower. Precise distribution of packing is effected by the internal configuration of the duct and the creation of a raised moving wall when non-foaming resin is used. Precise configuration of ducts can be achieved by fashioning from reinforced cloth. Adjustable start drums provide time and labor saving benefits. Complete resin wet through using either foaming or non-foaming resin ensures exellent filler bonding and surface finish.

Abstract: Extrusion method and apparatus for producing a molding strip which includes a decorative Mylar plastic strip located between a pair of interbonded plastic layers is disclosed. The top plastic layer or top coat is clear so that the decorative strip can be seen therethrough. A single die is utilized to produce the molding strip. The plastic layers are both preferably flexible PVC plastic which are interbonded by interfusion between adjacent surfaces while in a molten state within a bonding chamber of the die so that the plastic layers do not separate during use of the molding strip. The top coat is interbonded with the other plastic layer or body without requiring the clear plastic to totally encapsulate the resulting molding strip. Also, preferably, a reenforcement wire is embedded in the plastic body within the bonding chamber to give the molding strip additional strength.

Abstract: Two co-reactive resin stream are mixed immediately adjacent the entrance of an impregnation die used to make products by the pultrusion process. The mixing occurs immediately adjacent the fibers as they are pulled into the central duct opening of the die. The resin streams are delivered to the entrance of the impregnation die by use of a resin feed head positioned at the inlet of the impregnation die. An ultrasonic driver coupled to the resin feed head vibrates and agitates the resin streams impinging the fibers so as to thoroughly wet the fiber bundle prior to its passage through the die.

Abstract: An extruder with at least one bore, in which an extruder shaft is arranged to be rotatingly driven, has a device for introducing a glass fibre strand. To this effect the shaft is provided with an adjustable throttling device, upstream of which starts out an impregnating channel which opens again into the bore downstream of the throttling device seen in conveying direction, i.e. into a mixing zone, in which the fibre strand is cut into fibre sections. An especially intense impregnating of the fibres of the fibre strand is thus achieved.

Abstract: Coextrusion apparatus for varying the outer profile of a generally tubular extrudate formed by inner and outer streams of elastomeric material by varying the annular end opening of an elastic die ring which varies the size of an outer extrusion orifice and consequently the flow of the outer stream of elastomeric material which is deposited on the outer surface of the tubular extrudate. A hydraulically moveable piston is axially slideably mounted for engagement with the elastic die ring and has a wedge-shaped camming surface which moves along the outer surface of the elastic die ring to vary the size of the outer extrusion orifice and consequently the amount of elastomeric material extrudated therethrough. A linear motion detector is connected to the piston to detect the amount of linear axial movement of the piston to provide control signals for controlling the movement of the piston.

Abstract: An apparatus and method are disclosed for preparing electrically conductive traces on a circuit board using an additive technology. The traces are directly written in a serial process with each trace being able to be individually insulated. The apparatus includes an extrusion element for extruding a first material and a stage. The stage is for holding the extrusion element and the circuit board in relative proximity and for producing relative motion between the extrusion element and the circuit board in order to extrude the first material onto the surface of the circuit board along preselected paths to produce the electrically conductive traces. According to the method of invention, a first polymerizable material is extruded onto a circuit substrate support along preselected paths to form traces, and the first polymerizable material is polymerized, the first polymerizable material being conductive after polymerization.

Abstract: An apparatus for molding a plastic cap onto a pre-formed metallic shank includes a shank insertion device for inserting the shank onto a carrier member such that a head of the shank is elevated above the carrier member. A molding device, having an open mold cavity engages the carrier member such that the carrier member acts as a portion of the mold. A contour forming device can be used to form raised contours in said carrier member prior to the insertion of said shanks at said shank insertion device. A feeder mechanism is provided for drawing the carrier member through the contour forming device, the shank insertion device, and the molding device.

Abstract: A molding apparatus and method are provided for molding hollow articles. Resin impregnated fibers are passed through a mold cavity as defined by a heated die and around a mandrel which extends through the mold cavity. The mandrel is stabilized by a mandrel stabilizer fixedly positioned downstream from the inlet end of the die. The mandrel stabilizer includes a plurality of elongated members spaced around the mandrel, wherein each elongated member has an end in contact with the outer surface of the mandrel.

Abstract: Apparatus for pultruding thermoplastic, resin-impregnated, fibrous substructures heats the substructures to a temperature just below the melting temperature of the resin. The heated substructures are then simultaneously pulled through a passage to conform them to a desired cross section. At least a portion of the perimeter of this passage is formed by a wave guide. The wave guide is vibrated at ultrasonic frequency in a predetermined direction so as to direct the ultrasonic vibration into the substructures within the passage. The application of the ultrasonic vibration stimulates the flow of the resin in the heated substructures. Pressure is applied to the flowing substructures within the passage to consolidate them into an integral structure conforming to the chosen profile. The ultrasonic vibration at low power input does result in some heat transfer to the profile, but the flow rates of the resin exemplify an increase in flow far greater than expected in relation to the temperature increase.

Abstract: A twisted FRP structure having sufficient strength and flexibility is produced by providing a rod member disposed centrally and twist a plurality of side strands twisted around the rod member in the same direction at a predetermined pitch. At least the side strand includes a composite strand having an FRP element from by impregnating fibers with an uncured thermosetting resin and a thermoplastic coating on such FRP element, the thermosetting resin being cured after the side strands are twisted around the rod member. The twisting pitch is not less than 25 times the outside diameter of the FRP element in the side strand.

Abstract: Coextrusion apparatus for varying the outer profile of a generally tubular extrudate formed by merging inner and outer streams of elastomeric material by varying the size of the annular outer extrusion die opening by an axially moveable die ring which varies the flow of the outer stream of elastomeric material which is deposited on the outer surface of the tubular extrudate. The die ring is formed on the end of a hydraulically moveable piston and is axially slideably moved along and is located concentrically about the tubular extrudate. A first annular tapered surface of the die ring moves along a similar tapered surface of a fixed conical-shaped die pin to vary the size of the outer extrusion orifice formed therebetween.

Abstract: An apparatus is provided for the continuous coating of cylindrical workpieces with a mixture of rubber or thermoplastic plastics material. The arrangement includes an extrusion device, a coating head and a flow channel, which connects the extrusion device to the coating head. The coating head includes a hollow barrel, having a rotatable sleeve-shaped material distributor coaxially disposed therein. One or more conveyor flights are helically disposed on the periphery of the distributor. The discharge opening of the flow channel into the coating head end has a dimension corresponding to an axial pitch length of the flights on the periphery of the distributor.

Abstract: Method and apparatus for making a honeycomb structure including a honeycomb core in which a plurality of preformed honeycomb core elements are moved through an extrusion machine, while a layer of a plastic material is simultaneously extruded over the opposite faces of the honeycomb core elements.

Abstract: Monofilament threads which are wound around a thermoplastic synethetic resin core tube to form one or more reinforcement coils are generated as they are wrapped around the core tube by liquid crystalline polymer material emerging from respective spinning nozzles which rotate around the core tube while a difference in speed is maintained between the speed at which the reinforcing plastic emerges from the nozzle and the monofilament thread is wound on the core tube to maintain a stretch in the monofilaments.

Abstract: An apparatus for manufacturing a silicone gel material has a pair of tanks for separately storing and kneading first and second liquids gel forming materials, a feeder feeding the liquids while kneading them, a debubbling unit with a debubbling tank for removing air bubbles contained in the materials from the feeder and turning the tank upside down to discharge into a hopper, a nozzle for discharging silicone gel material received from the hopper in a predetermined thickness onto a lower film moving below the nozzle, an upper film supplier placing an upper film onto the film of silicone gel material, upper and lower rollers rolling the upper and lower films and the film of silicone gel material into a laminated strip, a belt conveyor receiving the laminated strip, a heating tunnel for gelling the silicone gel material and a strip take up device at the exit of the heating tunnel.

Abstract: Extrusion die assembly and method of insulating conductor in which tensile reinforcing elements are introduced into the conductor insulation as it is being extruded. During extrusion, the reinforcing element engage outwardly against a position control member to limit their outward movement. The extrudate flows to either side of the position control member and recombines into a single unitary mass downstream of the control member.