US Patent: 1,496,032


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Pulley

Patentee:

Frank H. Sleeper (exact or similar names) - Worcester, MA

USPTO Classifications:

474/50, 474/56

Tool Categories:

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

metalworking machines : metalworking machine mechanisms : metalworking power transmission

Assignees:

Sleeper & Hartley, Inc. - Worcester, MA

Manufacturer:

Sleeper & Hartley, Inc. - Worcester, MA

Witnesses:

Unknown

Patent Dates:
Applied:	May 25, 1923
Granted:	Jun. 03, 1924

Patent Pictures:

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Vintage Machinery entry for Sleeper & Hartley, Inc.

Description:

This pulley is believed to have been used on Sleeper & Hartley's wire machinery. The pulley has a diameter that automatically varies according to the load, so that the machine feed slows down when more heavily loaded.