Abstract: A cable comprises a central electrically insulating composite string, including a relatively hard strength member filament (8) with a relatively soft layer (9) thereon. Four, in the case of a quad, electrical or optical conductors (10) are at least partially embedded in the softer layer (9) and may abut the filament (8). A polyethylene sheath (11) is extruded over the string. The quad may be made by pressing the conductors against the outer periphery of the string whereby to deform it without heating it, and may involve the use of a die arrangement (FIGS. 3 and 4) which ensures the desired spacing and configuration of the conductors relative to one another, necessary for high quality quads of electrical conductors in order to have low crosstalk, is obtained. The cable construction, which facilitates miniature quad manufacture, is such that cable can be manufactured with a minimum of process stages at high throughput speeds.

Abstract: An improved, highly flexible flat multi-conductor electrical cable is provided, useful for example in robots wherein such cables may be flexed many times, comprising a plurality of conductor assemblies held in parallel relationship between layers of insulating coverings, the improvement comprising conductor assemblies having an elongate, non-conductive center core filament helically overwrapped along its longitudinal dimension by a first conductor in foil or tape form, such as copper foil, this first tape conductor having an outer covering of a conductive, low-friction material, the conductive covering being helically overwrapped along its longitudinal dimension by a second conductor in foil or tape form, such as copper foil, the second foil conductor being wrapped in a lay opposite to that of the first conductor, i.e. if one foil conductor is "S" wrapped, the other foil conductor is "Z" wrapped.

Abstract: A litz wire comprises three or more insulated strands consisting essentially of an inner conductor and an outer insulating layer on said conductor. The strands are twisted symmetrically with respect to the center line of the wire, so that a current density distribution in the litz wire becomes uniform. Three or more such litz wires are twisted to form a composite litz wire. The composite litz wires are suitable for use in a high-frequency coil.

Abstract: In order to improve the mechanical strength of power and control cables which are subjected to high mechanical stresses in operation, the conductors are elastically fixed to a structural element of the cable. To this end, the conductor insulation is joined in a material-bonded manner to the structural element which consists of a soft elastomer. The conductors are provided, for instance, with a thin cover layer of polyethylene which can be cross-linked peroxidically and is cross-linked after the inner jacket is applied, and in the process makes a material-bonded connection to the inner jacket which consists of a vulcanizable mixture of ethylene-propylene rubber and natural rubber.

Abstract: Described is a high-flex insulated electrical cable (11) for the carriages of flat knitting machines, this cable having two concentric multi-strand twisted layers (12, 13) each of which is comprised of a plurality of insulated individual strands (17) laid in long lay at the same twist angle.To enable a cable (11) of this nature to resist torsional stresses to an increased degree while retaining its shape and also to give it an extended length of life despite such torsional stresses, the individual strands (17) of each layer (12, 13) have an outer peripheral layer of resiliently deformable soft plastic (18, 19) injected therearound which penetrates into the gussets (22) which are formed between the individual strands (17).

Abstract: The insulating spacer for an h-f cable is extruded on the inner conductor, at approximately the correct dimensions, followed by a sizing step in which insulation powder is deposited on the horizontally running, insulated conductor core and melted in a funnel-shaped die to obtain a coating or film which establishes the final dimensions. The outer conductor is formed on top of that coating.

Abstract: The cable comprises one or more layers of insulated conductors disposed in circumferentially spaced relation. At least one layer is surrounded by a flexible shield formed from a inner layer of metallic foil bonded to a layer of flexible plastic. A ground conductor in the form of an uninsulated metal wire or a semi-conductive wire is disposed in the conductor layer directly adjacent to the shield. The ground conductor and the insulated conductors all have approximately the same outside diameter. This promotes intimate contact between the ground conductor and the shield.The cable is used in modular conjunction with a connector which holds the cable in pressurized engagement within a cable receiving opening. The pressure produced by the connector insures that intimate contact between the ground conductor and the shield will be maintained. The connector is designed such that the pressure applied to the cable can be varied.

Abstract: In known overhead telephone cables comprising two individual encased and stranded conductors, each consisting of a plurality of copper wires for the transmission of signals, and steel wires for load bearing purposes, the problem of relatively high susceptibility to corrosion at leakage points in the casing due to water penetration is solved by replacing the steel wires with bundles of stretch-resistant synthetic fibres, e.g. aromatic polyamide fibres, and the tendency of spirally wound synthetic fibres, or bundles of fibres, to shift towards the center of the conductor when the cable is under tension, and thus allow the cable to elongate is prevented by arranging the copper wires and bundles of fibres so that they position themselves mutually. The coherency of the bundles of fibres required for this purpose may be obtained, for example, by stranding or twisting the fibres in the bundle or impregnating the bundle with a resin, preferably colophony.

Abstract: A flat type feeder cable useful for transmitting electrical energy from a stationary source to a moving apparatus, which has a plurality of spaced apart strength members each with their respective axes arranged in a line and in substantially coplanar relationship with one another; a plurality of strand members stranded together about each of the strength members to form a core, the strand members themselves being composed of a plurality of electrical conductors circumscribed by a sheath, and are "S-Z" stranded so that they contain first and second alternatingly repeating substantially equal first and second sections, each of said first sections having a common direction and degree of lay and each of said second sections also having a common direction and degree of lay substantially equal opposite to that of the first sections, and, a jacket of flexible material circumscribing the core members.

Abstract: A remote control cable has a central core formed from two conducting wires separated over their entire length by a textile element with which the wires are in intimate contact, preferably slightly embedded therein, the whole being covered by a coating of a thermofusible material. The central core is strengthened by filamentary reinforcing elements arranged in parallel to the conducting wires and by at least one, preferably two, layers of braiding over the reinforcing elements. The central textile element maintains the conducting wires separated and parallel to each other during manufacture and under conditions of use. The cables may be used for transmitting signals, e.g. electrical pulses, to remote objects, for example, to transmit directions for controlling objects moving at high speeds, e.g. up to 300 m/second or higher and over distances up to 4000 meters or more.

Abstract: A cable of this invention includes a number of pulp-insulated conductor pairs per unit of cable cross-sectional area which is substantially greater than in prior art cables. Each pulp-insulated conductor includes a metallic conductor enclosed in a composite insulation cover which has a controlled dielectric constant and a controlled adhesion of the cover to the conductor. The composite cover comprises a pulpous material and a layer of adhesive material which is interposed between the conductor and the pulpous material. The layer of the adhesive material bonds the pulpous material to the conductor and allows a reduced thickness of pulpous material without degrading the transmission characteristics of the cable. Also, the mechanical integrity of the insulation cover permits the moisture content of the pulpous material to be reduced and the density increased over that achieved in prior art pulp-insulated conductors without causing bare spots in the insulation.

Abstract: A cable in the form of a tubular braid which is built of two oppositely directed, helically interlaced sets of strands of untwisted, individually insulated, fine copper wires. Each wire strand of each set repeatedly passes over two consecutive strands, and then under the next two consecutive strands, of the other set. At each extremity of the braid, the end portions of all the stranded wires are stripped of their insulations, assembled into two predetermined groups, and preferably soldered, to provide a pair of terminals.

Abstract: A remote control cable comprises two conducting wires separated by a central element with reinforcing wires parallel to the conducting wires. At least one layer of lapping covers these elements and at least one external coating layer is applied. The central element separates and holds the conducting wires parallel and is in the form of a continuous element, comprising two longitudinal recesses arranged symmetrically relative to a solid central portion. Each recess encloses a conductor over more than half of the periphery of the conductor. This cable may be used for the transmission of control command for moving bodies traveling at high speed.

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: Cordage suitable for use, for example, in spring telephone cords which connect a telephone handset to a telephone base and a line cord which connects the telephone base to a wall terminal includes a plurality of tinsel conductors individually insulated with a polyether polyester thermoplastic copolymer obtained by reacting 1, 4 butane diol terephthalate with terephthalate esters of polytetramethylene glycol and stabilized with a long chain hindered phenolic antioxidant, tubed over each of the conductors, and a jacket comprising a plasticized polyvinyl chloride composition. The polyether polyester copolymer provides the cordage unexpectedly with superior mechanical properties such as, for example, resiliency, flex life and creep resistance. Spring cords of the above-described construction exhibit outstanding extensile and retractile properties.

Abstract: Stranded wire comprising a plurality of individual strands twisted around a core coated with a thin layer of adhesive (a synthetic material or solder). During manufacture of the wire or of lengths of wire the individual strands are joined to the core either throughout the entire length or locally so that when the insulation sheath is locally removed the wire strands cannot fan out.