Textiles: spinning – twisting – and twining – Apparatus and processes – With wire or strand preforming or shaping
Patent
1997-03-18
1998-03-03
Stryjewski, William
Textiles: spinning, twisting, and twining
Apparatus and processes
With wire or strand preforming or shaping
57 5849, 57 5852, 57138, 57902, D01H 1326, D02G 336
Patent
active
057222266
ABSTRACT:
A steel cord effective for reinforcing a super-large off-road tire wherein strands made by simultaneously twisting together 3 to 6 steel wires in the same twisting direction with the same pitch length are used and the steel cord is made by twisting together 3 to 6 such strands in the same direction as the twisting direction of the strands and with the same pitch length. Each of the steel wires constituting the strands continuously has a small wavy pattern of a pitch length smaller than the lay length of the strands and therefore each of the strands has a compound pattern comprising a wavy pattern formed by the twisting and said small wavy pattern and in a gap is formed between steel wires each of the strands by the small wavy pattern. The lay length P.sub.1 of the steel cord is 8 to 15 times the steel cord diameter D and the elongation on breakage by tension of the steel cord is over 5%.
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patent: 5651246 (1997-07-01), Kusaba
patent: 5661966 (1997-09-01), Matsumaru
Striker Michael J.
Stryjewski William
Tokyo Rope Manufacturing Co. Ltd.
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