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US Patent: 668,693
Vehicle-Nut Wrench
Patentee:
George E. Spurr (exact or similar names) - Portland, ME

USPTO Classifications:
81/75

Tool Categories:
wrenches : axle nut wrenches : axle nut wrenches that lock nut to wheel hub

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Anna M. Cole
Marion Richards
Nathan Clifford

Patent Dates:
Applied: Oct. 03, 1900
Granted: Feb. 26, 1901

Patent Pictures:
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Description:
The action is reverse of a tongs; the spring forces the jaws outward -- to force the plates against the inside of the wheel hub with the notches straddling the axle nut. The revolving plates are to adapt to different sizes of wheel hubs and axle nuts. They would have sufficient "bite" to turn the axle nut along with the wheel, but not so much as to over-tighten the nut.

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