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US Patent: 551,163
Wrench
Patentee:
Joseph G. Hill (exact or similar names) - New York, NY

USPTO Classifications:
279/101, 81/163

Tool Categories:
wrenches : wrench adjustment types : screw adjust wrenches

Assignees:
Arthur Parton Hill - New York, NY

Manufacturer:
Not known to have been produced

Witnesses:
Dennis Sumby
Robert Everett
Arthur P. Hill
A. F. D. Carotew

Patent Dates:
Applied: Mar. 21, 1895
Granted: Dec. 10, 1895

Patent Pictures:
Joseph G. Hill patent December 10, 1895
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Description:
The handle is comprised of inner and outer tubular sections threaded in opposite directions and fastened together. Each section engages a corresponding threaded section on one of the jaws, so turning the handle moves the jaws towards or away from each other.

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