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US Patent: 639,369
Wrench
Patentee:
Joseph H. Flanigan - Town Creek, AL

USPTO Classifications:
81/137

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

Assignees:
Joseph H. Flanigan - Town Creek, AL
Lem. A. Carter - Decatur, AL
Charles E. Albes - Decatur, AL
Osceola Kyle - Decatur, AL

Manufacturer:
Not known to have been produced

Witnesses:
A. S. Shepard
Ralph A. Shepard
H. R. Brown
D. L. Martin

Patent Dates:
Applied: May 01, 1899
Granted: Dec. 19, 1899

Patent Pictures:
Joseph H. Flanigan patent Dec. 19, 1899
USPTO pdf tiff
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Description:
Quick adjustment; a toothed "cam" in the movable jaw engages rack teeth on the shank, and has an additional wedging feature to additionally tighten the jaw's grip. A friction spring helps hold the adjustment.

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