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US Patent: RE11,459
Pipe Wrench
Patentee:
George P. Woelfel (exact or similar names) - Spring Garden, PA

USPTO Classifications:
81/90.1

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

Assignees:
Josiah Bindley - Pittsburgh, PA

Manufacturer:
Bindley Automatic Wrench Co. - Pittsburgh, PA

Witnesses:
W. W. Swartz
H. M. Corwin
W. B. Corwin

Patent Dates:
Applied: Aug. 10, 1894
Granted: Dec. 18, 1894

Reissue Information:
Reissue of 497,260 (May 09, 1893)

Patent Pictures:
George P. Woelfel reissue patent December 18, 1894
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Description:
The spring allows the jaws to adjust to different pipe sizes, and to alternately grip and release pipe as the handle is moved in one direction or the other. The "cam jaw" can rotate to present different faces to the work, which extends the range of sizes the wrench can fit.

Ken Cope's "American Wrench Makers 1830-1930" cites an 1893 IRON AGE listing for the manufacturer, and notes the patent reissue. By 1899, the Bindley Automatic Wrench had passed to Smith and Hemenway.

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