Improvements in and relating to ropes

Details Improvements in and relating to ropes Improvements in and relating to ropes

1979-06-01

1981-05-12

Watkins, Donald

Textiles: spinning, twisting, and twining

Strand structure

Covered or wrapped

57 7, 57295, D07B 116

Patent

active

042663962

ABSTRACT:
PCT No. PCT/GB78/00019 Sec. 371 Date June 5, 1979 Sec. 102(e) date June 1, 1979 PCT Filed Oct. 3, 1978 PCT Pub. No. W079/00182 PCT Pub. Date Apr. 19, 1979
The invention relates to wire ropes.
There is disclosed a wire rope comprising a plurality of strands (4-12) twisted together with each strand (4-12) being individually covered by a respective sheath (16) of rubber or rubber substitute. Each strand (4-12) comprises a plurality of wires (14) twisted together with the direction of twist of at least the outer wires (14) in each strand (4-12) being opposite to the direction of twist of at least the outer wires (14) in the strands (4-12) adjacent to it, the rope having an outer covering sheath (18) of rubber or rubber substitute.
In this way, the wires (14) of adjacent strands (4-12) do not cross each other, and stress on them is reduced.

REFERENCES:
patent: 3131530 (1964-05-01), Dietz
patent: 3395530 (1968-08-01), Campbell
patent: 3534542 (1970-10-01), West
patent: 3601970 (1971-08-01), Roberts et al.
patent: 4022010 (1977-05-01), Gladenbeck et al.

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