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US Patent: 24,175
Wrench
Improved Gripping Wrench
Patentee:
Henry J. Behrens (exact or similar names) - New York, NY

USPTO Classifications:
81/171, 81/97

Tool Categories:
wrenches : pipe wrenches
wrenches : wrench adjustment types : screw adjust wrenches

Assignees:
Charles S. Pomeroy - New York, NY

Manufacturer:
Not known to have been produced

Witnesses:
William P. Chambers
Garret D. King

Patent Dates:
Granted: May 24, 1859

Patent Pictures:
Henry J. Behrens Pat. May 24, 1859
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Description:
The adjusting screw is on a hinged base; the movable jaw can slide, so that the gripping power increases as the pull on the wrench handle increases. The description contrasts this gripping action with those of Hyde (pat. No. 12510) and Foster (pat. no. 22947).

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