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US Patent: 956,259
Spanner Wrench
Patentee:
George Amborn - New York, NY

USPTO Classifications:
81/119, 81/186, 81/52, D8/28

Tool Categories:
wrenches : wrench components : wrench jaw components

Assignees:
J. H. Williams & Co. - Brooklyn, NY

Manufacturer:
J. H. Williams & Co. - Brooklyn, NY

Witnesses:
Fred White
Rene Bruine
Theodore T. Snell
Eugene V. Myers

Patent Dates:
Applied: Feb. 11, 1908
Granted: Apr. 26, 1910

Patent Pictures: [ 1 | 2 | 3 ]
George Amborn Pat. April 26, 1910
USPTO pdf tiff
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WILLIAMS RATCHETLESS RATCHET (FLICKR)
Description:
The jaw shape will "rock off" a nut on reverse movement, and allow for a type of ratchet action. The patent drawing shows the wrench in use on a large nut like those used on railroad rail fish plates.

Produced as the "RATCHO" wrench series by J.H. Williams. The salesman's sample - demonstrator featured a 5/16th inch single open end attached to a card bearing a hex nut and explanatory text.

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