Endless power transmission belt and method of making same

Details Endless power transmission belt and method of making same Endless power transmission belt and method of making same

1979-06-11

1981-03-10

Staab, Lawrence J.

Endless belt power transmission systems or components

Friction drive belt

Including groove, openings or pockets formed in belt surface...

474265, F16G 516

Patent

active

042551463

ABSTRACT:
An endless power transmission belt and method of making same are provided wherein such belt (which may be a toothed belt) is made primarily of polymeric material comprising a compression section having opposed sides and means for stress relief of the belt during operation thereof around associated sheaves and wherein the stress-relief means comprises a plurality of cavities extending into the compression section from each of the sides with each of the cavities defining a corresponding roughly concave surface, each concave surface has a top arcuate portion opening downwardly toward the inner surface of the belt and a bottom arcuate portion opening outwardly toward its associated side with the cavities providing stress relief by minimizing cracking tendencies in the compression section of the belt while reducing the aggressiveness of the belt during operation thereof around the sheaves.

REFERENCES:
patent: 1457569 (1923-06-01), Gusdorf
patent: 2405496 (1946-08-01), Gingras
patent: 2461169 (1949-02-01), Miller
patent: 2983637 (1961-05-01), Schmidt
patent: 3103703 (1963-09-01), Ludewig
patent: 3738188 (1973-06-01), Ray
patent: 3776054 (1973-12-01), Shichman et al.
patent: 4002082 (1977-01-01), Waugh

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