Abstract: In the production of a thread-reinforced hose from polymeric material, the still formable material, a mold core, and the reinforcing thread or threads are fed continuously into a shear head and united. This takes place while utilizing the rotary movement of the shear mandrel contained in the shear head such that each thread used is passed axially through the shear mandrel and is wound around the mold core after emerging from an opening at the end. The embedding of the thread into the material and its winding about the mold core take place simultaneously. After the finished hose emerges from the nozzle of the shear head the material solidifies and the mold core is removed.

Abstract: An apparatus for making soap comprising, an extruder having a helical screw for passing the soap and forming an extrudate adjacent a downstream portion of the extruder, and a device for working or kneading the extrudate to remove residual screw lines and prevent cracking of soap formed from the extrudate.

Abstract: An injection molding apparatus for making a molding of fiber-reinforced synthetic resin which comprises a mold assembly having a molding cavity defined therein, into which a liquid molding material of synthetic resin containing reinforcing fibers is injected. The mold assembly has a gate defined therein, which gate has a thickness within the range of 0.2 to 0.4 times the thickness of a portion of the molding adjacent the gate, and also has a gate land of a length within the range of 10 to 20 times the thickness of the gate.

Abstract: A method of materials processing (e.g. polymer extrusion) in which the material flows along an axially extending passageway. A pressure differential is established across the passageway transverse to the axial flow direction so as to create a flow of material through the die which has a velocity component transverse to the axial flow direction. Preferably the pressure differential transverse to the extrusion direction is continuous thereby estabilshing a continuous change of velocity component transverse to the axial flow direction. Preferably also there is at least one reversal of transverse pressure differential (and hence transverse velocity component). Apparatus for performing this method comprises for example, successive sections (3-5) of identical trapezoidal cross section with adjacent ones of these sections having their cross-sections displaced through 180.degree. relative to each other.

Abstract: A process and apparatus for producing a cross-linked, extruded or sprayed product.

Abstract: Injection molding apparatus is disclosed in which weld lines are removed from a part, such as a parison, which weld lines are caused by the interruption or splitting of the flow of plastic material around core support pins or the like by the provision of an annular mixing chamber which opens into the plastic material flow passage. The plastic material is caused to move radially into the mixing chamber where it is spread by reason of the increasing volume encountered, accompanied by a reversal of flow radially inwardly into an annular injection gate. The movement of plastic material within the chamber and the resultant increase in temperature by reason of shear, eliminates the weld lines which have been formed in the material by reason of the splitting of flow around the pins.

Abstract: A blending apparatus particularly adapted for blending or mixing candy, cookies, nuts or fruit with the material of a cold flowable substance, such as ice cream, includes a blending container, a rotatable auger having a rotatable cutter displaceable into and out of the container, and a device for causing recirculation of at least a portion of the ingredients within the container during mixing. The auger is rotatable within the container with the cutter being rotated at a different angular velocity from the auger. The cutter is effective to cut large portions of the ingredients in the container into smaller portions.

Abstract: The present invention concerns an ice cream machine for home use. The ice cream machine of the invention having a mixing auger and a mixing cone uses a unique drive system to vertically drive the cone to engage the auger and mix the products contained within the cone. An arc gear, pinion gear and a rack gear are provided in the drive train of the invention and are intermeshed with each other and interconnected with a manually operable lever arm to accomplish the desired vertical drive of the mixing cone. This configuration allows increased leverage and efficiency in the vertical drive movement. Also provided herein are various size reduction and easy cleaning features. Finally the unique gear drive train allows for a steady extrusion of a deliciously mixed, flavored ice cream or ice milk product.

Abstract: An apparatus for cold injection molding of glass fiber reinforced composite materials. The apparatus includes an injection unit for the composite material, a unit for the mixing of said material, the discharge orifice for the mixed material of which is connected directly with the feeder orifice of the injection unit, and a die or the like for injection of the material into the cavity of the heated mold. The unit is designed so as to discharge a sheet of the elongated material from the orifice of the cavity, in the joining plane of the mold. The dimensions of the sheet are smaller than or equal to those of the piece to be molded. The die and the mold are equipped with guillotine blades to cut the sheet at the end of the injection.

Abstract: An annular extrusion die for the production of a tubular thermoplastic film web material, such as an annular extrusion die including a filtering arrangement for the formulation of a more consistently or uniformly distributed polymer melt conveyed to the die orifice of the extrusion die which will impart improved properties to the extruded thermoplastic film material. Also disclosed is a method of producing an improved extruded thermoplastic film web material through the utilization of the inventive extrusion die arrangement. A cavity or die flow chamber within the body of the annular extrusion die is filled with a particulate inert material of either uniform granular size or of random sizes, so as to force the polymer melt being conveyed towards the die orifice to randomly flow through the interstices which are present between the particles of the granular material, and thereby uniformly fill the cavity.

Abstract: Grittiness in soap-containing formulations, one source of which is the reworking of previously processed soap, is reduced in an efficient manner by passing the formulation through a cavity transfer mixer.

Abstract: Apparatus for producing moldings from flowable reactive components comprising(a) a mold assembly having two halves surrounding a mold cavity,(b) a mixing device for combining said reactive components mounted on said mold assembly, said mixing device having a mixing chamber,(c) a supply channel in said assembly for supplying said components from said mixing chamber to said mold cavity,(d) a throttle device located between said mixing chamber and said mold cavity, said throttle device capable of moving into and out of said supply channel in a direction transverse to the orientation of said supply channel, thereby forming a throttle zone in said supply channel,(e) a relaxation chamber located in said supply channel between said throttle device and said mold cavity, said apparatus further characterized in that the dividing plane which separates the mold assembly into halves extends through said supply channel, said throttle zone and said relaxation chamber.

Abstract: A shear head in which an extruded vulcanizable composition meets preheated reinforcing strands has a compartment adjacent a mouth of the head which is evacuated to reduce the danger of gases affecting adhesion of the strands to the composition.

Abstract: An apparatus for charge-wise dosing a metered volume quantity of liquid medium to be supplied continuously under delivery pressure, comprising a pair of serially connected cylinder-and-piston assemblies of different diameters the cylinder blocks being arranged axially relatively to each other, forming a composite housing; a supply conduit for the flowing medium connected to the smaller diameter cylinder block and a filling nozzle connected to the larger diameter cylinder block and containing a discharge opening; a tube operating as a piston member for reciprocation in the composite housing, which tube is in direct communication with the smaller diameter cylinder block and connected to the larger diameter cylinder block via a passage provided in the larger diameter piston.

Abstract: A method for the manufacture of a cross-linked extruded elongated product from polyethylene or other suitable polymer. The polymer is fed into the hopper of a screw extrusion machine. The polymer is heated and melted while being conveyed through the barrel of the screw extruder. A liquid silane compound which comprises a modified vinyl functional silane, a free-radical generator, and a condensation catalyst is carefully metered and injected into the melted polymer. The melted polymer and the liquid silane compound are then mixed and blended to obtain a uniform blended mixture thereof. The blended mixture is then extruded through an extrusion die to form an elongated product of a required final shape and the elongated product is then subjected to the action of moisture and heat until the polymer in the elongated product is cross-linked.

Abstract: A crosshead (10b) and a method are provided for extruding a tubular layer of a thermoplastic material, or for coextruding tubular layers of various thermoplastic materials, without incurring a weld line. The crosshead (10b) includes a supply passage (46) which provides an annular flow of thermoplastic material around a mandrel (18b) by providing separate flows that merge distal from a supply passage (52), a first compressive forging passage (72) that provides static mixing by transverse viscous shear, a longitudinal shear mixer (44a) that provides static mixing by longitudinal viscous shear, and a second compressive forging passage (94) that provides static mixing by longitudinal shear, and an extrusion opening (110).

Abstract: An assembly of fibers composed of at least two dissimilar fiber-forming polymers, characterized by the fact that(1) it consists of numerous fibers,(2) at least 90% of said fibers have a non-circular cross-sectional shape,(3) the cross-sections of at least 50% of said fibers differ from each other in at least one of shape and size, and(4) at least 50% of said fibers each have in their cross-section taken at right angles to the fiber axis at least two side-by-side coalesced blocks of at least two dissimilar fiber-forming polymer phases with at least a part thereof being exposed to the peripheral surface of the fiber, at least one of the number, shape and size of the blocks varying from fiber to fiber.

Abstract: The present invention concerns an ice cream machine for home use. The ice cream machine of the invention having a mixing auger and a mixing cone uses a unique drive system to vertically drive the cone to engage the auger and mix the products contained within the cone. An arc gear, pinion gear and a rack gear are provided in the drive train of the invention and are intermeshed with each other and interconnected with a manually operable lever arm to accomplish the desired vertical drive of the mixing cone. This configuration allows increased leverage and efficiency in the vertical drive movement. Also provided herein are various size reduction and easy cleaning features. Finally the unique gear drive train allows for a steady extrusion of a deliciously mixed, flavored ice cream or ice milk product.

Abstract: In order to homogenize and to obtain a uniform temperature distribution in a plastics substance, which is to be extruded between an inner and an outer component, in a nozzle, the substance is made to pass a bearing structure comprising a number of rolling bearings, where the balls serve as kneading bodies. The inner and the outer components of the orifice rotate in opposite directions, which will orientate the molecular chains in the surface zones of the extruded products at an angle to the direction of extrusion. In this manner the structure of the product is enhanced, while simultaneously the kneading operation reduces the risk of impurities in the plastics compound causing weak spots in the product.

Abstract: A forming machine for chocolate and the like which comprises, located directly downstream of the hopper, a metering device having a contoured mixing and metering cavity which accommodates a rotatively driven rotor provided with disk-like spaced-apart collars and with rotary pistons respectively in the form of bridges interconnecting said disk-like collars axially. On the interior of said mixing and metering cavity, said rotor defines, accordingly, movable metering chambers in the shape of annular segments at one side, in each whereof there is respectively reciprocable a detent segment of a respective oscillating delivery disk valve and formed on a common shaft element, and a mixing chamber at the other side. Provided in said valves is a throughgoing passage which opens below the forming machine lower plane, and a depression for the unhindered passage of the respective rotary piston.

Abstract: An adjustable slotted orifice assembly for controlling the feed rate and dispersion pattern of high pressure impinging liquid reaction injection molding materials. In a preferred embodiment vibration of the variable orifice, opening particularly useful with low through puts, provides improved results.

Abstract: An apparatus for processing frozen comestibles has a cup for receiving a frozen comestible and a rotatable auger mounted for movement relative to the cup. The cup is moved to the auger to create a pocket in the frozen material in a first relative movement and mixes the frozen material with an added flavoring and extrudes the mixture from the cup in a second operation. A counter is provided which counts only the number of second operations of the apparatus.

Abstract: Marbleized cookie dough pieces are formed by independently feeding different color doughs into a common extrusion die, in which a rotating impeller is located. The impeller lards portions of each dough into the flow of the other to produce a spiral pattern in the extrudate which is sliced to produce spirally marbleized dough pieces.

Abstract: A centrifugal casting apparatus comprises a mold mounted for rotation about the vertical axis thereof and having a bottom provided with a through axial opening. A member having a helicoidally shaped surface is axially mounted within the opening in the bottom. The member has a lower portion to be immersed into a melt and extending out of the opening and downwardly of said bottom of the mold. The mold and the member are connected with a rotation drive and a vertical motion drive.

Abstract: Apparatus located at the output end of a screw extruder comprising a mandrel to rotate with said screw and a jacket coaxial with the mandrel and rotatable in an opposite direction of rotation to the mandrel at a speed which is steplessly adjustable. Sealing lips co-operating with abrasion rings are preferably provided on relatively moving surfaces of the jacket and stationary housings and temperature adjustment means can be provided in the jacket and the mandrel.

Abstract: Apparatus for producing tubular sheet material by extruding a fluid polymer material through a hollow centered die having an annular extending continuous or discontinuous extrusion orifice exit rotated about the die axis to discharge therefrom a continuous or discontinuous annular-form polymer structure which is collected on a generally cylindrical supported surface advancing through the hollow center of said die. The collected structure undergoes attenuation at an angle to the general extrusion direction because of the die exit rotation and consequently, has a grain therein extending at a significant angle, e.g. helically, to the general extrusion direction. The collecting surface may be formed separately from the support, e.g. by one or more endless belts passing either longitudinally or helical around the support so as to collectively define a cylindrical surface in the collection zone or combined with the support, e.g.