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US Patent: 129,302
Improvement in Fork-Wrenches
Patentee:
Daniel Witt - Hubbardston, MA

USPTO Classifications:
81/127

Tool Categories:
wrenches : wrench adjustment types : self-adjust wrenches

Assignees:
None

Manufacturer:
Thomas P.I. Magoun - Hubbardston, MA

Witnesses:
E. H. Bates
G. E. Upham
John W. Corbin
Geo. H. Estabrook

Patent Dates:
Granted: Jul. 16, 1872

Patent Pictures: [ 1 | 2 ]
Daniel Witt patent July 16, 1872 and Magoun Witt*s Patent
USPTO pdf tiff
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Description:
The sliding jaw is moved by a cam-lobe on the handle. The patent includes the shape of the slide.

The 1873 WORCESTER Directory lists Magoun at 533 Main St. in Worcester, and includes a large ad showing WITT'S PATENT SELF-ADJUSTING FORK WRENCH and other products Magoun produced and sold.

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