Self-adjusting variable speed idler pulley

Details Self-adjusting variable speed idler pulley Self-adjusting variable speed idler pulley

1979-12-19

1981-09-15

Husar, C. J.

Endless belt power transmission systems or components

Pulley with expansible rim means or pulleys with alternately...

Structure for variably adjusting radius of rim section

226175, F16H 5554

Patent

active

042894891

ABSTRACT:
An idler pulley, which adjusts itself to variable power transmission speeds by providing a wide range of effective pulley diameters automatically, is disclosed. In its preferred form, the pulley has four spindles with freely rotating sleeves, two directed inwardly from either side, all positioned in the same plane and in changeable circular orbit, for guiding the power transmission belt or chain used with the pulley. The size of the circular orbit of the spindles, corresponding to the effective pulley diameter, is permitted to vary with the power transmission speed by the scissors-like action of the pulley side assemblies which support the spindles.

REFERENCES:
patent: 443561 (1890-12-01), Avery
patent: 687090 (1901-11-01), Wache et al.
patent: 771006 (1904-09-01), Giraud

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