Compacted fine wire cable and method for producing same
AssigneeNew England Electric Wire Corporation
InventorWendell W. Jesseman
Life of this patent
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Abstract
The method of the invention enables the manufacture of flat, rectangular cable from fine-gauge, self-bondable magnet wire. The cable is capable of efficiently transmitting electrical currents at high frequencies.
Claims7
In a method for the manufacture of a flat, rectangular cable comprised of two layers of compacted, helically wound conductors, each of said conductors consisting of a multiplicity of wire strands, the steps comprising:
- (a) disposing a multiplicity of strands of fine wire, of at least 30 AWG units, in a bundle, each of said wires having a self-bondable coating thereon;
- (b) subjecting said bundle of wire strands to conditions for integrating the coatings thereon, to thereby produce a stiffened and mechanically strengthened conductor in which said strands are in relatively fixed positions within the coating matrix so formed;
- (c) continuously supplying to a forming station a longitudinally advancing and rotating, generally circular array of at least four of said conductors, and forming said conductors into a helical configuration of circular cross-section;
- (d) gradually transforming the cross-section of said array from circular to a flat elliptical configuration;
- (e) tightly compacting said conductors to transform said elliptical structure into a cable of generally rectangular cross-section in which said conductors are densely packed and are disposed substantially in two layers;
- and
- (f) continuously withdrawing the cable so produced from said forming station, said transforming, compacting and withdrawing steps being carried out under applied tension.
A physically stable flat rectangular cable comprised of two layers of compacted, helically wound conductors, each conductor consisting of a multiplicity of wire strands, said cable being produced by the steps comprising:
- a. disposing in a bundle a multiplicity of strands of fine wire of at least 30 AWG units, each of said wires having a self-bondable coating thereon;
- b. subjecting said bundle of wire strands to conditions for integrating the coatings thereon, to thereby produce a stiffened and mechanically strengthened conductor in which said strands are in relatively fixed positions within the coating matrix so formed;
- c. continuously supplying to a forming station a longitudinally advancing and rotating, generally circular array of at least four of said conductors, and forming said conductors into a helical configuration of circular cross-section;
- d. gradually transforming the cross-section of said array from circular to a flat elliptical configuration;
- e. tightly compacting said conductors to transform said elliptical structure into a cable of generally rectangular cross-section in which said conductors are densely packed and are disposed substantially in two layers;
- and
- f. continuously withdrawing said cable so produced from said forming station, said transforming, compacting and withdrawing steps being carried out under applied tension.
Dependencies are inferred from the claim text.