Abstract: The tapered working roller of a skew rolling mill is provided with a deformation surface in the form of a paraboloid and a smoothing surface at the end of smaller cross-section in the form of a technical hyperboloid.

Abstract: A metal mold employed for the casting of metals, preferably steel, has a wear resistant layer on the casting surface thereof formed of a different metal having solid particles dispersed therein. A preferred mold is formed of copper or alloy thereof having an electrolytically deposited nickel layer with silicon carbide particles dispersed therein.

Abstract: A skew rolling mill is provided with a deforming smoothing means in contact with the stock immediately beyond the working rollers to remove markings. The deforming means is supported in a support which rotates about the axis of the stock.

Abstract: Fiber optic connector apparatus and methods and apparatus for applying the fiber optic connector apparatus to the fiber optic cable is provided in accordance with the teachings of the instant invention. The fiber optic connector apparatus includes a metallic nose piece having a first apertured end portion for butting optical fibers exposed at the aperture and a second apertured end portion for receiving the fiber optic cable. An application device for holding the nose piece in alignment with cable to be attached is provided to heat the nose piece to a temperature to cause protective sheathing on the cable to flow. Upon melting, an end portion of the cable to be attached is biased against the second apertured end portion to cause it to be displaced into the nose piece as the protective sheathing begins to flow to expose optical fibers at the first end portion and, upon cooling, maintain the portion of the cable within the nose piece in a compressed, adhered condition.

Abstract: High voltage electrical cable comprising an inner elongated conductive member, a corrugated metallic tubular member positioned about such inner member, and a plurality of nonconductive spacers each positioned along the longitudinal axis of the electrical cable and extending between said members through a nonconductive environment comprising, for example, a gaseous, foam or liquid insulator. To avoid premature insulation breakdown or sparkover in the vicinity of the spacers, such spacers are so configurated and positioned that their end portions coming into engagement with the corrugations of the surrounding tubular member follow the profile of the engaged corrugations so as to extend into the corrugation troughs thereof.

Abstract: A working roller for a skew rolling mill which has the shape of a truncated cone is provided with internal passages for circulating a heat transfer medium therethrough to thereby control the temperature of the working surface of the roller.

Abstract: A skew rolling mill is provided with only two working rollers offset from each other by 180.degree.. Restraining elements are provided between the rollers to prevent lateral bending of the stock being rolled.

Abstract: Copper-clad steel wire is produced by forming a copper tube around the wire, and drawing down the copper tube and wire to reduce the cross-section of the wire by at least 30%. The wire is annealed, slowly cooled and the cross-section further reduced by at least 10%.

Abstract: An improved construction of an extrusion press for producing an extruded tube is disclosed, the press including a billet chamber and a ram adapted to drive a billet through the billet chamber, a sizing means comprising an annular die, and a mandrel for sizing the wall thickness of the tube. The improved construction including a mandrel support means attached to and concentrically extending from the front face of the mandrel for maintaining continuous coaxial alignment of the mandrel with the die, prior to and during the extrusion operation.

Abstract: High frequency electrical cable is provided in accordance with the teachings of the instant invention wherein a plurality of conductors for transmitting information are contained in a common sheathing. Each of the plurality of conductors takes the form of a central core of insulating material upon which a layer of conductive material is rigidly disposed. The thickness of the layer of conductive material is such that current penetration is substantially independent of frequency within a given frequency range. Therefore, within this frequency range the attenuation characteristics of the resulting cable are substantially independent of frequency.

Abstract: A polymeric composition having a polymer content which tends to evolve deleterious acid compounds upon being subjected to elevated temperatures; the composition including selected particle matter which is present in an amount to combine with or otherwise neutralize essentially the entire evolved deleterious compound when the composition is subjected to elevated temperatures; the composition with or without plasticizers being useful as insulation or jacketings for electric wire and cable, as well as diverse molded or extruded products, including disposable items such as packaging or the like.

Abstract: In accordance with the teachings of the instant invention, there is disclosed an injection molding head for forming honeycombed structures of thermoplastic materials, which comprises a fixed mouthpiece having a plurality of strand channels extending longitudinally therethrough; a plurality of guide channels extending longitudinally therethrough and interposed between said strand channels; a strand deviation guide mechanism comprising a plurality of elongated members each slidably mounted in one of said guide channels; a frame arrangement attached to one end of each of a group of the elongated members for moving in a longitudinal direction one end of each of the elongated members beyond the exit end of the fixed mouthpiece for the provision of high thrust, lateral forces proximate to the output of said strand channels, and withdrawing the ends of the said elongated members from said extended position to within said fixed mouthpiece; and a drive apparatus coupled to the frame arrangement for moving the frame ar

Abstract: Apparatus for welding adjacent longitudinal edges of a thin flat workpiece being formed into a tubular configuration is disclosed as comprising a single welding head and an associated welding head bracket including pivot means and vertical adjustment means for selectively positioning the welding head above the moving workpiece. The single welding head includes three welding electrodes having their welding tips disposed in spaced linear arrangement in the direction of the moving workpiece, and being adapted to individually receive electric power for the generation of separate welding arcs. Associated with each of two of the three welding electrodes is a tilt adjustment means for individually adjusting the alignment of such two electrodes during welding operation so that the welding baths created by such two said welding electrodes overlap the welding bath created by the centrally positioned third electrode.