Title: Alternate reverse twisting method and apparatus and product
Application Number: 87103422 Application Date: 1987.03.31
Publication Number: 1014555 Publication Date: 1987.11.11
Approval Pub. Date: 1991.04.03 Granted Pub. Date: 1991.04.03
International Classifi-cation: D07B3/00;H01B13/02
Applicant(s) Name: Oy Nokia AB Address:
Inventor(s) Name: Karhu Raimo Kalervo
Attorney & Agent: YANG WU
Abstract:
    The invention relates to alternate reverse or so-called SZ-twisting method and apparatus both to product as cable or similar produced. The elements (2) to be alternate reversely twisted may be wires, leads, optical fibers, their groups and similar or which can also be quads of wires, leads, optical fibers etc. Said elements (2) to be twisted and a possible core element (9) are drawn from a fixed dividing means (3), through twisting means (6), rotating periodically to opposite directions, to pressing means (7), to form an alternate reversely twisted product (8).
Time: 6