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US Patent: 466,769
Wrench For Twisting Fence Wires
Patentee:
Andrew T. Campbell (exact or similar names) - Alama, IN

USPTO Classifications:
140/120

Tool Categories:
agricultural : fencing tools
wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Geo. E. Freeh
H. F. Riley
Horace C. Grimes
Jonathan Ham

Patent Dates:
Applied: Apr. 23, 1890
Granted: Jan. 12, 1892

Patent Pictures:
Andrew T. Campbell patent January 12, 1892
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Description:
The short arms with "arrow-shaped" ends are inserted between strands for twisting. The taper insures the tool can be removed after the wire is twisted to the desired tension. The long arms provide sufficient leverage. The reason for multiple short arms is they can be used in succession. As one wears out, the next can be used -- extending the useful life of the tool.

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