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US Patent: 533,844
Wagon Wrench
Patentee:
George B. Dunham - Hebron, ME

USPTO Classifications:
269/232, 81/128, 81/176.3, 81/185

Tool Categories:
wrenches : axle nut wrenches

Assignees:
Joseph E. Hurd - Lynn, MA

Manufacturer:
Unknown

Witnesses:
M. J. Moore
E. E. Hamill
A. D. Frost
Howard D. Smith

Patent Dates:
Applied: Jan. 11, 1895
Granted: Feb. 05, 1895

Patent Pictures: [ 1 | 2 ]
George B. Dunham Pat. February 5, 1895
USPTO pdf tiff
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Description:
The side knobs turn spiral threads which slide the jaw halves on the central rod. The large center knob provides a support while the wrench and axle nut are turned "spinner-style."

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