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US Patent: 325,503
Wrench
Patentee:
Roswell F. Cook - Ilion, NY

USPTO Classifications:
81/125

Tool Categories:
wrenches : axle nut wrenches

Assignees:
None

Manufacturer:
Roswell F. Cook - Ilion, NY

Witnesses:
F. L. Ourand
D. E. McElhinny
F. W. Wills
Wm. Rulison

Patent Dates:
Applied: Jun. 16, 1885
Granted: Sep. 01, 1885

Patent Pictures: [ 1 | 2 ]
Roswell F. Cook patent September 1, 1885
USPTO pdf tiff
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Description:
A spring-tensioned swinging auxiliary handle (called the "clamping lever" in the specifications) provides the nut-gripping surface within the box end.

Produced with a single open end wrench on the end of the handle; a contemporary ad lists three sizes: 7/8 inch, 1 inch and 1 1/8 inch.

Corresponding Canadian patent CA-24,816 was granted Aug. 27, 1886.

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