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US Patent: 531,279
Wrench
Patentee:
Aaron Sellers (exact or similar names) - Muncie, IN

USPTO Classifications:
81/321, 81/340

Tool Categories:
wrenches : wrench adjustment types : quick adjust wrenches
wrenches : nut wrenches

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
L. Schaeffer
W. A. Richison
E. E. Daugherty
E. J. Tomlinson

Patent Dates:
Applied: Apr. 14, 1894
Granted: Dec. 18, 1894

Patent Pictures:
Aaron Sellers patent December 18, 1894
USPTO (New site tip)
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Description:
The handles are pulled apart to disengage the rocking toothed piece that holds adjustment, and serves as a pivot. The handles are linked by a tension spring which tends to keep the wrench closed and hold the selected size.

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