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US Patent: 560,038
Apparatus For Forming Sliding Jaws For Wrenches
Joseph P. Lavigne - New Haven, CT

USPTO Classifications:

Tool Categories:
tool making : making wrenches
wrenches : wrench components : wrench jaw components

Lavigne & Scott Mfg. Co. - New Haven, CT

Not known to have been produced

J. H. Shumway
Lillian D. Kelsey
Fred C. Earle

Patent Dates:
Applied: Sep. 03, 1895
Granted: May 12, 1896

Patent Pictures:
Joseph P. Lavigne patent May 12, 1896
USPTO pdf tiff
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The blanks at the start of the process have previously been forged and shaped into a hollow cylinder with a solid extension on one side.

The patented apparatus comprise a punch, die and former. The former changes the shape of the cylindrical portion to a rectangle. The objective is to form jaw shapes without using milling processes.

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