US Patent: 427,743 - Improvements in Hub-Wrenches


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US Patent: 427,743

Vehicle Wrench
Improvements in Hub-Wrenches

Patentees:

William M. Chamberlain (exact or similar names) - Sheffield, AL

Harold B. Smith (exact or similar names) - Barre, MA

Robert L. Warner (exact or similar names) - Portland, OR

USPTO Classifications:

81/76

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:

Patent Dates:
Applied:	Mar. 05, 1890
Granted:	May 13, 1890

Patent Pictures:

William M. Chamberlain, Harold B. Smith, and Robert L. Warner patent May 13, 1890

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Description:

The drawings do not clearly show how this works. It has a central wrench socket for the axle nut. The top lever has pins that extend the side pieces which clamp against the inside of the wheel hub. This locks the axle nut to the wheel so the wheel and nut can be turned on or off the axle together.