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US Patent: 293,175
Pipe Wrench
Patentee:
James Jewell (exact or similar names) - Grandville, MI

USPTO Classifications:
81/148, 81/94

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

Assignees:
James Jewell - Grandville, MI
George Frazer - Grandville, MI
John J. Fidler - Grandville, MI

Manufacturer:
Not known to have been produced

Witnesses:
Charles E. Ward
Frank S. Donaldson
S. A. Burlingame
Edwin A. Burlingame

Patent Dates:
Applied: Aug. 27, 1883
Granted: Feb. 05, 1884

Patent Pictures:
James Jewell patent February 5, 1884
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Description:
The position of the the base of the movable jaw is held by rack teeth engaging a rack on the main bar. A sliding wedge and strap hold the racks in engagement. The pivoted jaw in the movable base can only move through a limited range.

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