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US Patent: 928,719
Ratchet Wrench
Patentee:
Frederick E. Walden - Worcester, MA

USPTO Classifications:
81/30, 81/61

Tool Categories:
wrenches : ratchet wrenches

Assignees:
Walden Manufacturing Co. - Worcester, MA

Manufacturer:
Walden Mfg. - Worcester, MA

Witnesses:
F. G. Tilton
E. W. Waite
A. B. Upham

Patent Dates:
Applied: Nov. 08, 1906
Granted: Jul. 20, 1909

Patent Pictures: [ 1 | 2 | 3 | 4 ]
Frederick E. Walden Pat. July 20, 1909
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Description:
The ratchet action is generated by the end of a spring steel rod which also forms the handle and frame of the wrench. Produced in a range of sizes, with hex and square openings, for use directly as a ratchet wrench, or as the ratchet handle for a ratchet and socket set. The supplemental handle shown on the second page of the drawings may never have been produced.

The wrench was already produced and advertised by January 1907. Some were overstamped with the names of early tire manufacturers and supplied as rim bolt wrenches for use with early demountable rim automotive wheels.

A socket wrench set using this ratchet is described in William Barnes' June 21, 1921 patent (no. 1,381,900).

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