Drive belt with tensile cords

Details Drive belt with tensile cords Drive belt with tensile cords

1983-02-04

1985-02-12

Novosad, Stephen J.

Endless belt power transmission systems or components

Positive drive belt

Drive surfaces on belt formed in or interconnected by...

474268, 57902, F16G 104

Patent

active

044988915

ABSTRACT:
A drive belt manufacture wherein tensile cords (16) are provided with a Lang twist having a ply twist constant of approximately 2.9 to 3.9 and a cable twist constant of approximately one-fifth to one-half of the ply twist constant. In a preferred embodiment, the tensile cords are formed of aromatic polyamide fibers and are provided with an adhesive coating from a solution of resorcinol, formalin, and latex rubber. The invention further comprehends subjecting the cords to a pretreatment of such an adhesive solution, an epoxy resin, or an isocyanate compound. The resultant twisted cords provide improved long life characteristics for use in drive belts and the like.

REFERENCES:
patent: 2739090 (1956-03-01), Waugh
patent: 3597303 (1971-08-01), Tanaka
patent: 3603071 (1971-09-01), O'Neil
patent: 3607499 (1971-09-01), Garbin
patent: 3621727 (1971-11-01), Cicognani
patent: 3930418 (1976-01-01), Dutton
patent: 3937094 (1976-02-01), Cicognani
patent: 4016325 (1977-04-01), Flautt et al.
patent: 4266937 (1981-05-01), Tanako
patent: 4305714 (1981-12-01), Renshaw

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