Textiles: spinning – twisting – and twining – Strand structure – Covered or wrapped
Patent
1993-03-10
1994-12-27
Hail, III, Joseph J.
Textiles: spinning, twisting, and twining
Strand structure
Covered or wrapped
57 9, 57218, 57219, 57311, 57902, 140149, D02G 336, D07B 106
Patent
active
053754042
ABSTRACT:
A stranded product is formed from a central wire and a plurality of wires helically wound around the central wire, wherein each of the wires helically wound around the central wire has a small longitudinal groove which increases the area of contact between each of the outer wires and the core wire, thus significantly reducing the internal contact stresses within the strand to extend the fatigue life of the strand without significantly reducing the bending flexibility of the strand. A plurality of stranded products in accordance with the invention can be employed in a conventional manner to form ropes, cables and the like, having an extended service life.
REFERENCES:
patent: 251114 (1881-12-01), Hallidie
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patent: 2241955 (1941-05-01), Noyer et al.
patent: 3083817 (1963-04-01), Campbell
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patent: 3778993 (1973-12-01), Glushko et al.
patent: 4311001 (1982-01-01), Glushko et al.
patent: 4454708 (1984-06-01), Verreet
patent: 4530205 (1985-07-01), Seiler et al.
patent: 4604861 (1986-08-01), Matsuura et al.
Hail III Joseph J.
Strysewski William
The University of Akron
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