Abstract: An arrangement for coupling the ends of optical waveguides includes a housing including at least one first passage for receiving the optical waveguide ends, a second passage for accommodating a plurality of pressing bodies, and at least one slot which extends along an arcuate course between the first and second passages and separates a clamping portion situated between the passages from the remainder of the housing which is constructed as a unitary body. The partial separation of the clamping portion from the remainder of the housing body permits it to resiliently yield to the pressure exerted by the pressing bodies, and thus to clamp the waveguide end in the first passage. A plurality of the first passages may be provided in the housing body around the second passage, each connected with the second passage by an arcuate slot. Another slot may surround the first passage at a distance therefrom.

Abstract: The invention relates to a communications cable which is assembled of at least one basic bundle of at least three component conductors each being formed of two SZ stranded pairs or quads of wires and a portion of the component conductors in the group being radially transposed across each other. The invention also relates to a method of and a device for manufacturing such a cable.

Abstract: An arrangement for coupling optical fiber ends mounted in respective connectors includes an elongated hollow housing, a first clamping member of a prismatic configuration extending over the entire length of the housing and having a longitudinally extending V-shaped groove for partially receiving the connectors, and a pair of second clamping members each overlying one of the connectors in registry with the V-shaped groove of the first clamping member. A plurality of pressing bodies, subdivided by a separating pin in two groups, is received in a longitudinally extending recess of the housing in juxtaposition with the second clamping members. A force exerted by an end cap threadedly mounted at the respective end of the housing is transmitted by the pressing bodies to the respective second clamping members to press the same into clamping engagement with the respective optical fiber connectors received in the V-shaped groove of the first clamping member.

Abstract: A drive shaft, particularly for motor vehicles, has a tubular shaft part of a fiber reinforced synthetic plastic material, two end pieces each associated with respective one of the end portions of the shaft and having sleeve-shaped and ring-shaped sections, and a plurality of anchoring pins arranged on the end pieces on the region between the sleeve-shaped and the ring-shaped section at circumferentially spaced locations.

Abstract: A device for coating wire with a pulverized insulating material wherein wire is coated with the insulator in an electrostatic coating machine which establishes a potential difference between the wire and the insulation and thereby causes the insulation to adhere to the wire electrostatically, without the use of solvents. After such coating, the coated wire is sintered and hardened in a sintering and hardening oven in order to form a lacquered wire with a uniform insulation thickness. Insulation thickness can be maintained at a desired value by the control device for adjusting the length of wire being exposed to the insulator in pulverized form within the electrostatic coating machine. The supply of insulator used in pulverized form is continuously fed from a reservoir into the electrostatic coating machine so as to prevent smaller and lighter particles from being first attracted to the wire, and thereby depleting such particles excessively while leaving only larger and heavier particles available for coating.

Abstract: Wire is coated with an insulator in an electrostatic coating machine which establishes a potential difference between the wire and the insulation and thereby causes the insulation to adhere to the wire electrostatically, without the use of solvents. After such coating, the coated wire is sintered and hardened in order to form a lacquered wire with a uniform insulation thickness. Insulation thickness can be maintained at a desired value by adjusting the length of wire being exposed to the insulator in pulverized form within the electrostatic coating machine and/or the potential difference therein. The supply of insulator used in pulverized form is continuously fed into the electrostatic coating machine so as to prevent smaller and lighter particles from being first attracted to the wire, and thereby depleting such particles excessively while leaving only larger and heavier particles available for coating.

Abstract: A submersible cable for a fish-repelling installation comprises a central conductive-wire core covered with a conductive smoothing layer and then with an insulating layer. A first conductive layer is applied over this first insulating layer, then a second insulating layer and a second conductive layer that constitutes a field limiter. Armor in the form of synthetic-resin strands is then wound over the cable and a waterproof layer is applied to the outside of the cable. After the application of each insulating layer the cable is tested for leakage in order to repair any discovered leaks before the next conductive layer is applied to the cable.

Abstract: A cable includes a plurality of elongated sections each composed of a tubular electric conductor, electric insulation surrounding the electric conductor, and an outer cable jacket surrounding the electric insulation. An inner tubular member of titanium or alloyed stainless steel is accommodated in the electric conductor and defines a channel for a cooling medium such as water. The inner tubular members of each two consecutive cable sections have flanges that are welded or soldered to one another, and a bridging element is interposed between the electric conductors of the two consecutive electric conductors and welded or soldered thereto. The electric conductor preferably is a circumferentially complete one-piece tubular element extruded onto the inner tubular member.

Abstract: The cable comprises a plurality of electrical conductor elements and a plurality of tensile load-bearing elements combined with the conductor elements to form the cable. The tensile-load-bearing elements are made of high-tensile strength synthetic plastic material.

Abstract: A transmission line carries power cables and twin wire communication lines. The coupling unit consists of an elongated, oil filled insulating body having metal caps closing off its opposite ends. The twin wires are brought to the low impedance terminals of an autotransformer which also has a pair of high impedance terminals and a center tap. Each of the high impedance terminals is coupled through a coupling capacitor to the high impedance terminals of a second autotransformer mounted within the second metal cap. The second autotransformer also has a center tap and also has a pair of low impedance terminals for connection to the communications equipment. The center tap of the first autotransformer is connected through a capacitor or a cathode drop arrester to the first metal cap. Overvoltage arresters are connected from the center tap to the low impedance and to the high impedance terminals of both autotransformers.

Abstract: A reel for cable and the like has a tubular core portion having opposite open ends and a hollow interior formed with reinforcing ribs. A pair of end flanges is provided, each having a radially inner annular flange portion which is cupped so as to a have an open side facing axially inwardly of the core portion and which is, in part, received in one of the open ends, and a radially outer annular flange portion which is cupped so as to have an open side facing axially of the core portion and which has an outer circumferential edge face. Connecting portions connect the end flanges to the core portion.