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US Patent: 30,579
Improvements in Wrenches for Pipes and Stud-Bolts
Patentee:
William Kearney - Union, NJ

USPTO Classifications:
81/180.1, 81/97

Tool Categories:
wrenches : pipe wrenches
wrenches : wrench components : wrench jaw components

Assignees:
None

Manufacturer:
Wm. Kearney - Belleville, NJ

Witnesses:
W. M. Gooding
J. L. Jones

Patent Dates:
Granted: Nov. 06, 1860

Patent Pictures:
William Kearney Pat. Nov. 6, 1860
USPTO pdf tiff
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Description:
A rule joint in the adjustable jaw of a pipe wrench similar to the Bartholomew and Merrick Jan. 2, 1849 patent (no. 6,002) allows the jaw to "bite" either to loosen or tighten pipe or other round objects.

Ken Cope's "American Wrench Makers 1830-1930" notes an 1863 SCIENTIFIC AMERICAN mention of KEARNEY'S PATENT WRENCH.

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