US Patent: 881,086 - Variable-speed mechanism


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US Patent: 881,086

Variable-speed mechanism

Patentee:

Burt D. Stevens (exact or similar names) - Beloit, WI

USPTO Classifications:

474/75

Tool Categories:

industrial machines : industrial machine mechanisms : industrial machine speed and direction changing mechanisms

Assignees:

None

Manufacturer:

P. B. Yates Machine Co. - Beloit, WI

Berlin Machine Works - Beloit, WI

Witnesses:

L. F. McCrea

Walter M. Fuller

Patent Dates:
Applied:	Sep. 24, 1906
Granted:	Mar. 03, 1908

Patent Pictures:

USPTO (New site tip)
Google Patents
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Vintage Machinery entry for P. B. Yates Machine Co.
Vintage Machinery entry for Berlin Machine Works

Description:

"My invention relates to variable speed mechanisms and belt tighteners, its object being the production of a simple belt-tightening means acting on a plurality of belts passing over pulleys of different diameters whereby a variety of speeds of the driven mechanism may be secured."