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US Patent: 457,107
Wrench
Patentee:
Charles Warren Cheney - Athol, MA

USPTO Classifications:
81/165, 81/170, 81/177.9

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

Assignees:
None

Manufacturer:
Charles Warren Cheney - Athol, MA

Witnesses:
B. S. Ober
W. S. Duvall
Abijah Hill
Henry R. Vaille

Patent Dates:
Applied: Mar. 27, 1891
Granted: Aug. 04, 1891

Patent Pictures: [ 1 | 2 ]
Charles Warren Cheney patent August 4, 1891
USPTO pdf tiff
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Description:
Screw-adjustable jaw, with a ratchet-like angle adjustment. Produced as the Cheney Ratchet.

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