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US Patent: 221,989
Ratchet-Wrench
Patentee:
Joseph Woolford - Plymouth, CA

USPTO Classifications:
81/106, 81/140

Tool Categories:
wrenches : wrench adjustment types : self-adjust wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
S. C. Wheeler
J. Steinmetz
B. H. Nourse
Frank A. Brooke

Patent Dates:
Applied: Jun. 09, 1879
Granted: Nov. 25, 1879

Patent Pictures:
Joseph Woolford patent November 25, 1879
USPTO pdf tiff
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Description:
The hook jaw is mounted on a sliding block. The block's position on the main shank is held by a spring catch. The large spring holds the hook jaw in engagement with the work piece, and allows ratchet-like action.

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