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US Patent: 349,249
Wrench
Patentee:
Alfred H. Criley - Fort Scott, KS

USPTO Classifications:
81/141

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
B. Fugitt
Phil C. Masi
Henry J. Butler
S. M. Miller

Patent Dates:
Applied: Jun. 30, 1886
Granted: Sep. 14, 1886

Patent Pictures:
Alfred H. Criley patent September 14, 1886
USPTO pdf tiff
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Description:
A guide-pin in the movable jaw has a compression spring to push the jaw away from the main shank. Teeth on the base of the movable jaw engage rack teeth on the main shank. A cam lever on the movable jaw pulls the sets of teeth together to hold the adjustment.

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