Improvements in and relating to ropes
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United States of America Patent
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May 12, 1981
Grant Date -
N/A
app pub date -
Jun 1, 1979
filing date -
Oct 5, 1977
priority date (Note) -
Expired
status (Latency Note)
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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.
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