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US Patent: 140,111
Wrenches
Patentee:
Byron C. Bradley - Chicago, IL

USPTO Classifications:
81/318

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

Assignees:
None

Manufacturer:
Unknown

Witnesses:
L. L. Bond
A. W. Bond

Patent Dates:
Applied: Jul. 15, 1872
Granted: Jun. 24, 1873

Patent Pictures: [ 1 | 2 ]
Byron C. Bradley patent June 24, 1873
USPTO pdf tiff
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Description:
A sliding pivot point and a set of notches with a corresponding spur form the adjusting means on this pliers type wrench. Used with Bradley's Sept. 22, 1874 patent (no. 155,139) for a malleable iron adjustable wrench.

Some known examples with a marking that appears to read "PAT'D JUNE 24 72" match the drawing in pat no. 155,139, with an alignment tongue on the handle with the gripping tooth. Other known examples bear names of farm implement companies.

For the overall form, also compare patent nos. 166,020 and 206,733.

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