Safe wire rope

Details Safe wire rope Safe wire rope

1979-08-03

1980-08-19

Watkins, Donald

Textiles: spinning, twisting, and twining

Strand structure

Covered or wrapped

57206, 57222, 57223, 57232, D07B 116

Patent

active

042177480

ABSTRACT:
Steel wire rope used for lifting and hauling is dangerous when stressed above the breaking point, as there is a substantial quantity of energy stored in the stretched rope and when the rope breaks the stored energy causes the broken ends to whip at high velocity, in a number of recorded cases causing fatalities, and serious damage to helicopters, cranes, vessels and vehicles. This invention discloses a steel wire rope with a strong hand elastic sleeve or sleeves which are not in longitudinal tension, and which dissipate by friction the energy stored in the broken cable, thus materially reducing the possibility of damage to the surroundings.

REFERENCES:
patent: 1382723 (1921-06-01), Green
patent: 1397718 (1921-11-01), Bellwald
patent: 3240082 (1966-03-01), Bratz
patent: 3522699 (1970-08-01), Popradi
patent: 3831370 (1974-08-01), Gilmore
patent: 3928519 (1975-12-01), Kashiyama et al.

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