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US Patent: 391,957
Pipe Wrench
Patentee:
Julian A. Giles - Oswego, NY

USPTO Classifications:
81/97

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

Assignees:
C. C. Place - Oswego, NY
E. A. Van Horne - Oswego, NY

Manufacturer:
Place Mfg. Co. - Oswego, NY
Oswego Tool Co. - Oswego, NY

Witnesses:
A. N. Radcliffe
Ernest W. Rice
Mark W. Dewey
J. J. Laass

Patent Dates:
Applied: Jun. 11, 1888
Granted: Oct. 30, 1888

Patent Pictures:
Julian A. Giles patent October 30, 1888
USPTO pdf tiff
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Description:
Gripping teeth on the back side of the "loop" mesh with rack teeth on the back side of the shank.

Early 1890s hardware catalogs show this wrench in 10", 14", 18", and 24" sizes, made of cast steel.

Giles later patented an "adjustable alligator wrench" type pipe wrench (pat. no. 408,479).

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