US Patent: 1,385,396


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Pulley

Patentee:

Everett E. Rayburn (exact or similar names) - Greenview, IL

USPTO Classifications:

109/9, 188/218R, 474/93, 492/12

Tool Categories:

woodworking machines : woodworking machine mechanisms : woodworking power transmission

industrial machines : industrial machine mechanisms : industrial machine pulleys and belt drive mechanisms

Assignees:

None

Manufacturer:

Onsrud Machine Works, Inc. - Niles, IL

Witnesses:

Unknown

Patent Dates:
Applied:	Aug. 31, 1920
Granted:	Jul. 26, 1921

Patent Pictures:

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Vintage Machinery entry for Onsrud Machine Works, Inc.

Description:

This flat-belt pulley has fan blades on one end, and holes in the cylindrical portion. As the pulley spins a vacuum is created that helps suck the belt in firmly to the pulley.