Fail-safe cable and effect of non-frangible wire in cable struct

Details Fail-safe cable and effect of non-frangible wire in cable struct Fail-safe cable and effect of non-frangible wire in cable struct

1977-01-05

1979-05-15

Watkins, Donald

Textiles: spinning, twisting, and twining

Strand structure

751755, 148 115F, D07B 500

Patent

active

041540506

ABSTRACT:
A synthesis of four (4) factors is applied, through a test approach, to eliminate wire fractures, and fractures and overstressing of other cable components. This approach shows this "crucial flaw" is prevented from occurring amidst other flaws within the "flaw state" of the complex structure of work performing cable. These other flaws prove to be minor during the cable's service life.
Non-frangible, ductile aluminum (al) and titanium (ti) wire are used in the cable assembly wherein their high dynamic properties and other attributes prevent wire fractures, and neutralize or reduce wire wear, depending upon load level, to change and improve the cable's "flaw state" so that a "fail-safe" cable may be designed to provide a protracted service life.
Steel and copper wire fail to qualify for "fail-safe" cable constructions due to their low dynamic properties and other flaws in the cable structure.

REFERENCES:
patent: 3194693 (1965-07-01), Soltis
patent: 3511622 (1970-05-01), Nation
patent: 3511719 (1970-05-01), Nation
patent: 3527044 (1970-09-01), Nation
patent: 3532559 (1970-10-01), Gullotti et al.
patent: 3575736 (1971-04-01), Fitzpatrick et al.
patent: 3584368 (1971-06-01), Sargent
patent: 3686041 (1972-08-01), Lee
patent: 4010046 (1977-03-01), Setzer
patent: 4067734 (1978-01-01), Curtis

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