Abstract: A woven shielded cable assembly includes a woven cable (A) having a base weave pattern defined by warp and weft elements (14) and (16). A plurality of drain wires (B) are interwoven with and floated out of the base weave pattern at locations along the cable on both sides thereof to provide instantaneous and continuous draining of a conductive shield (C).

Abstract: A device and method for wrapping a wrapping material to form S-shaped shields around a cable core of two side-by-side core units in which two tubes are provided for passage of the core units. A space between the tubes accepts the thickness of a central region of the wrapping material which has side portions extending away from the central region. Concave turning surfaces extend partially around the tubes and approach each other as they extend towards an outlet end of the tubes. The core units pass along the tubes and the wrapping materials passes along between the tubes while the turning surfaces progressively turn the side portions inwardly towards and around the tubes whereby the side portions are turned around the core units when these emerge from inside the tubes. In a practical arrangement, the turning surfaces are formed by the inside surface of a frusto core.

Abstract: Several embodiments of reduced crosstalk ribbon cable having alternating twisted and straight sections of indefinite length are disclosed, crosstalk being reduced by differing starting positions of alternate twisted pairs, differing lay of alternate twisted pairs, and variation in lay along the length of alternate twisted pairs. A preferred embodiment uses offset starting positions, and a lay in alternate twisted pairs substantially longer than that of adjacent pairs, becoming shorter to minimize the nontwisted portion resulting from the time to bring adjacent pairs into planar alignment. An apparatus for making such cable is also disclosed, having several wire supply twisters and several second twisters, removing the twist inserted by the wire supply twisters while forming twisted pair ribbon cable sections, allowing indefinitely long twisted sections. Twisters are provided in two groups operating in opposite directions, preventing curl of the cable.

Abstract: A branch-off of at least two substrates leaving an end of a recovered sleeve is effected using a heat activatable sealant, and a thermally conductive member which has a fin-shaped protruberance by means of which heat can be conducted into the crutch region between the substrates to activate the sealant. The thermally conductive member can also function to urge together circumferentially spaced portions of the sleeve to define conduits for the substrates. This urging function can be supplemented or carried out totally by a separate clip.

Abstract: A multiple sheath cable for telemetry, heating and communications and methods of manufacturing such cable in long lengths with high tensile strength. The telemetry and communications cable may be of the wire type for conducting electrical signals or fiber optics for conducting laser or other optical signal, the conductors being typically insulated by mineral insulation material or organic insulation material. These insulated conductors are provided with concentric multiple layers of metal tubular sheaths having staggered weld joints for increasing tensile strength while protecting the conductors and the insulation from extreme environmental conditions such as heat, pressure and corrosion.

Abstract: Apparatus for the dry cross linking of strands of elastomer, in particular in the production of elastic cables and multilayered profiles comprises a string of tubes through which the strand passes. Between adjacent tube sections, there are hollow bodies having central cavities in line with the bore of the tubes and a plurality of branch cavities radiating from the central cavity. One of the branch cavities is connected through a UHF transformer and a wave guide with the UHF generator while tuning probes are arranged in other branch cavities. The UHF transformer has an inwardly diverging tapered opening in which a tapered plug of ceramic or plastic is fitted to provide a pressure seal. The interior of the tube sections and the hollow bodies is supplied with inert gas under pressure.

Abstract: Several flat cable embodiments (10, 10',10",10"',10"") are disclosed, as are methods and apparatus (30) for the selective manufacture and connectorization of same. In accordance with one preferred flat cable embodiment (10), adapted for telephone under carpet applications, two precisely offset arrays of rectangularly shaped conductors (13, 14) are separated by a center film (16), with each array being adhesively bonded through an associated adhesive coating (21 or 22) to only the respectively adjacent one of two outer films (18 or 19).

Abstract: A method of reconstituting an external conductor of a coaxial cable which stands up well to bending and has good electromagnetic propagation. Solid non-perforated or woven strips are wound in a helix along the whole length of the part which is to be repaired and the ends of the intact external conductor and said strips are glued on these ends with an electrically conductive glue. Application to coaxial telephone cables.

Abstract: In the manufacture of mineral insulated cable, by a continuous process in which the tubular sheath is formed by bending and seam welding travelling metal strip, and insulating powder and conductor wires are continuously delivered into the sheath, one wire is fed through a guide tube extending into the sheath beyond the weld point, and having an aperture in its wall adjacent to the weld area. The wire so exposed directly to the heat from the weld conducts excess heat away from the weld, thus preventing thermal damage, in particular to a powder delivery tube if present. The guide tube is so arranged that powder is excluded from the weld area. When the sheath is formed of an oxidizable metal such as copper, a continuous stream of rare gas is delivered to the underside of the weld area. Forms of apparatus for carrying out vertical and horizontal processes are described.

Abstract: This specification describes an improved method for making fire-resistant communication cables that have a core which includes a multitude of individual conductors or pairs with insulation surrounding some or all of the conductors. The conductors are enclosed in a metal sheath that has a welded seam and that is annealed to maintain the flexibility of the cable. The sheath is of larger diameter of the core when welded, but is drawn down to a reduced diameter that hugs the core prior to the annealing. Heat insulation is wrapped around the core to protect the insulation on the conductors from the heat that is used to anneal the sheath. The purpose of the construction is to provide indoor cable that does not propagate flames from a burning area in a building into adjacent non-burning areas. The cable sheath is purposely not bonded to the core to facilitate sheath removal for ease of terminating the cable.

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: There is disclosed a lattice structure having a plurality of elongated parallel elements interconnected periodically by integrally formed ribs therebetween and a plurality of elongated filaments, each of which is embedded in and adhered to one of the elongated parallel elements. The structure is constructed by a method which includes the steps of molding the lattice structure from film or laminate belts, heating the filaments above the melting temperature of the molded lattice structure, joining the heated elements with the structure and solidifying the lattice structure adjacent each filament.

Abstract: Electrical insulating sheet material characterized by a coating of thermosetting resinous adhesive material distributed over two sides of a sheet of aramid paper, in combination with a pattern of pressure sensitive adhesive material applied to one side of the aramid paper sheet.

Abstract: An improved cable having low crosstalk characteristics is comprised of a pair of multi-conductor cable members laminated together with the pairs of wires of and between the respective cable members being so spaced as to effectively form a balanced capacitive bridge configuration. The conductors of the cable members can be either round or flat in section and the cable members are preferably secured together across their entire width by means which allows the cables to be readily separated at the termination. This capability for separation of the cable members is also effective for inserting a tap means intermediate the ends of the cable.

Abstract: A spiral insulation rib between the inner and outer conductors of a coaxial cable is provided having a rectangular cross section by pointing the extrusion slit approximately in the direction of the spiral winding and by providing side surfaces of the extrusion slit which are concave so that the width of the slit is smallest at the center thereof and gradually increased toward either end.

Abstract: This invention relates to a re-formable multi-conductor flat, or ribbon, cable, which comprises a plurality of spaced insulated conductors, aligned in a predetermined, laterally spaced, pattern along a single sheet or film of plastic, the single sheet of plastic being only intermittently bonded to the laterally spaced conductors. The intermittent bonding pattern preferably utilized is one that results in transverse, peelably bonded, areas extending across the width of the entire cable alternating with transverse unbonded areas which also extend across the width of the entire cable.

Abstract: A curved woven cable having a plurality of conductors and a method for constructing the same is disclosed wherein warp binder strands and a fill strand are interwoven with the conductors with at least one void area being formed in which the conductors are not interwoven with the warp strands and fill strands so that the cable may be curved. In a preferred method, the void area is formed by weaving the warp strands and fill strands with the conductors removed from the weave to form a weave portion floated outside of the conductors but which remains an important structural portion of the cable in maintaining its curved configuration.

Abstract: A screen for electric power cables comprising a metal tape with a coating on one side of a thermoplastic with parallel metal wires extending longitudinally of the tape and along non-rectilinear paths partially embedded in the coating and preferably contacting the tape. The tape may also be coated with a plastic on the opposite side with a plastic which will provide good adherence to an insulating sheath. Also, a cable including such screen around the conductor thereof and the insulation on the conductor, and a method for making the screen which comprises heating a so-coated tape, applying the wires to the heated coating in non-rectilinear, parallel paths, pressing the wires into the coating and allowing the latter to cool.

Abstract: A method of rendering a cable having a core consisting of a plurality of conductors longitudinally watertight. A silicone rubber which vulcanizes upon exposure to moisture is used between the conductors either throughout the entire length or in blocks.

Abstract: A method of laminating a cover layer for flexible circuits which provides increased flexibility. The cover layer encapsulates a flexible circuit having a plurality of spaced conductors on a flexible insulating substrate. The cover layer is a tri-layered laminate having a first layer of insulating film, a second intermediate layer of a thermosetting adhesive, and a third layer of a phenolic resin adhesive. The cover layer is bonded to the flexible circuit with the third layer of phenolic resin adhesive being contiguous the conductors.

Abstract: This invention relates to a method and apparatus for making multi-conductor cable. The multi-conductor cable comprises a plurality of insulated wire conductor pairs, each of said insulated conductor pairs having alternating twist and straight portions and comprises alignment means for precisely aligning both the twisted portions and straight portions of said insulated conductor pairs in a predetermined, laterally spaced, relationship with respect to each other.The alignment means of the multi-conductor cable of this invention comprises a laminated plastic sheet, initially formed from first and second plastic sheets or films, the laminated film having(a) a plurality of precisely spaced encapsulating ducts formed therein, each encapsulating duct containing either an individual, insulated, straight portion of a conductor or an insulated conductor twisted pair and(b) nip areas extending laterally between, and joining, each of said precisely spaced encapsulating ducts.

Abstract: An adhesive tape is disclosed which is useful for binding electrical conductors. The tape is liquid-permeable so that the conductors can be impregnated with liquids such as varnishes and resins. It comprises a liquid-permeable support material, one side of which is coated with an adhesive. The adhesive covers less than 50% of the coated side.

Abstract: An electrical jumper cable comprising a plurality of spaced metallic conductors, each conductor having a flexible area and integrally formed rigid terminal ends, is provided. Starting with a metallic sheet having a thickness approximating that required for the conductor flexible areas, one or more mesas of thickness approximating that required for the terminal ends are formed on the edge regions of the sheet. The mesas may be formed by plating or casting so that the thickened edge regions are integral with the sheet central region. The resulting substrate is then chemically or mechanically milled so as to define the conductor patterns and terminal ends, and the metallic conductors laminated to flexible films so as to support and maintain the metallic conductors in spaced relation to one another.

Abstract: Lamination of thermoplastic fluorocarbon resins with unsintered, extruded PTFE is accomplished in order to insulate products, such as conductors in the manufacture of multiconductor cable, by drawing the unsintered PTFE containing the product embedded in it pressed against the thermoplastic fluorocarbon resin through a sintering zone to melt the thermoplastic resin and snter the PTFE, thereby laminating the two together. In the preferred arrangement a second PTFE tape, which can be sintered or unsintered tape, is also laminated at the same time to the thermoplastic resin, such that the final product essentially presents PTFE outer surfaces with thermoplastic fluorocarbon resin bonding the layers of PTFE.