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US Patent: 574,624
Wrench
Patentee:
John McCarthy Palmer - Marysville, MT

USPTO Classifications:
81/105

Tool Categories:
wrenches : pipe wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
C. H. Raeder
W. A. James
H. H. Patting, Jr.
Ralph Date

Patent Dates:
Applied: May 16, 1896
Granted: Jan. 05, 1897

Patent Pictures:
John McCarthy Palmer patent January 5, 1897
USPTO pdf tiff
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Description:
Screw-adjust pipe wrench, with the movable jaw and adjusting nut in a rocking frame.

Corresponding Canadian patent no. CA-52,971 includes a second patentee.

Ken Cope's "American Wrench Makers 1830-1930" cites an 1897 POWER item that implies Palmer intended to produce this wrench along with those in patent nos. 561,274 and 558,304.

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