Electricity: conductors and insulators – Conduits – cables or conductors – Conductor structure
Patent
1984-03-08
1985-07-16
Grimley, A. T.
Electricity: conductors and insulators
Conduits, cables or conductors
Conductor structure
29599, 57215, 57219, 156 50, 174129R, 174133R, H01B 1200
Patent
active
045298378
ABSTRACT:
Improved multistrand Rutherford-type superconductor cable is produced by using strands which are preformed, prior to being wound into the cable, so that each strand has a variable cross section, with successive portions having a substantially round cross section, a transitional oval cross section, a rectangular cross section, a transitional oval cross section, a round cross section and so forth, in repetitive cycles along the length of the strand. The cable is wound and flattened so that the portions of rectangular cross section extend across the two flat sides of the cable at the strand angle. The portions of round cross section are bent at the edges of the flattened cable, so as to extend between the two flat sides. The rectangular portions of the strands slide easily over one another, so as to facilitate flexing and bending of the cable, while also minimizing the possibility of causing damage to the strands by such flexing or bending. Moreover, the improved cable substantially maintains its compactness and cross-sectional shape when the cable is flexed or bent.
REFERENCES:
patent: 2609653 (1952-09-01), Peterson
patent: 3699647 (1972-10-01), Bidault et al.
patent: 3829964 (1974-08-01), Critchlow et al.
patent: 4329539 (1982-05-01), Tanaka et al.
patent: 4439256 (1984-03-01), Meserve
Borden, R. C. et al; Mechanically Improved Rectangular Cable; Lawrence Berkeley Laboratory, Mar. 1983.
Carnahan L. E.
Gaither Roger S.
Grimley A. T.
Hightower Judson R.
Nimmo Morris H.
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