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US Patent: 975,609
Wrench
Patentee:
John H. Ferguson - Dayton, OH

USPTO Classifications:
81/77

Tool Categories:
wrenches : wrench adjustment types : screw adjust wrenches
wrenches : pipe and nut combination wrenches

Assignees:
None

Manufacturer:
John H. Ferguson - Dayton, OH

Witnesses:
E. K. Stewart
F. G. Smith
James L. Coffield
Howard S. Smith

Patent Dates:
Applied: Feb. 26, 1910
Granted: Nov. 15, 1910

Patent Pictures: [ 1 | 2 ]
John H. Ferguson patent November 15. 1910
USPTO pdf tiff
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Description:
A single adjusting nut moves a shank with a nut wrench jaw on one end and a pipe gripping jaw on the other. The wrench produced from this patent is a small "pocket wrench" that has an angled shank end with pipe teeth rather than the spring-loaded gripping surface shown in the drawing.

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