Title: Variable speed pulley

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.

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Inventors: Wood, Thomas D. (Mt. Vernon, OH)
Reiss, Garry K. (Mt. Vernon, OH)

Application Number: 06/314491
Filing Date: 1981-10-23
Publication_date: 1983-08-16
Assignee: FOOTE FOUNDRY CO J B (US)

Primary Class(es): 474/37
Other Classes: F16H55/56; F16H55/32; F16H11/04
US Patent Ref:

2208430	July, 1940	Ostler	474/33
2253921	August, 1941	Van Sant	474/33
2255567	September, 1941	McElroy	474/34
2546856	March, 1951	Frazier	474/33
2594663	April, 1952	Lindell	474/33
2595203	April, 1952	Reeves	474/33
2741135	April, 1956	Numan	474/33
2769345	November, 1956	Bugenhagen	474/37
4117652	October, 1978	Jones et al.	74/425
4232569	November, 1980	Hauser et al.	74/701

Other Refs: PK109993GB428027

August, 1960	474/33
May, 1935	474/37

Primary Examiner: Staab, Lawrence J.
Assistant Examiner: Rudy, Andrew Joseph
Attorney: Gutchess Jr., Allen D.

Claims:

We c