Variable speed pulley

Details Variable speed pulley Variable speed pulley

1981-10-23

1983-08-16

Staab, Lawrence J.

Endless belt power transmission systems or components

Pulley with belt-receiving groove formed by drive faces on...

By manual actuator for one or both confronting members

F16H 1104

Patent

active

043988997

ABSTRACT:
A variable speed pulley or sheave with a broad speed range is designed particularly for self-propelled lawn mowers. The variable speed pulley is mounted on a drive shaft of a gear unit in the form of a transaxle or transmission located on the mower and is driven through a belt connected to the drive shaft of the mower engine. The engine drive shaft can also drive a mower blade, thus eliminating any special power take-off shaft otherwise required to propel the mower. The variable speed pulley includes two pulley members or halves which are designed with inter-nesting tines and recessed hubs which enable the pulley halves to nest together more fully and thereby increase the speed range by more widely varying the effective diameter of the pulley.

REFERENCES:
patent: 2208430 (1940-07-01), Ostler
patent: 2253921 (1941-08-01), Van Sant
patent: 2255567 (1941-09-01), McElroy
patent: 2546856 (1951-03-01), Frazier
patent: 2594663 (1952-04-01), Lindell
patent: 2595203 (1952-04-01), Reeves
patent: 2741135 (1956-04-01), Numan
patent: 2769345 (1956-11-01), Bugenhagen
patent: 4117652 (1978-10-01), Jones et al.
patent: 4232569 (1980-11-01), Hauser et al.

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