US Patent: 623,793 - Tire Bolt Wrench


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US Patent: 623,793

Tire Bolt Wrench

Patentee:

Walfrid Larson (exact or similar names) - Kingsburg, CA

USPTO Classifications:

81/56

Tool Categories:

wrenches : tire bolt wrenches

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Patent Dates:
Applied:	Oct. 22, 1898
Granted:	Apr. 25, 1899

Patent Pictures:

Walfrid Larson patent April 25, 1899

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LARSON Tire-Bolt Wrench (edited from SCIENTIFIC AMERICAN - FLICKR)

Description:

A spring helps press the socket against the nut to be turned; the socket is turned by a crank and gear drive. The bolt holder and wrench socket are on opposing "jaws" of a tongs type tool.

Corresponding Canadian patent CA-63,152 was granted to Larson and Oskar John Davidson on May 27, 1899. In that patent application Larson's signature reads, "Walfrid Larson, Blacksmith."