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US Patent: 28,157
Making Metal Tools
Rolling The Shanks and Bars of Screw-Wrenches
Patentees:
Loring Coes - Worcester, MA
Aury Gates Coes - Worcester, MA

USPTO Classifications:
72/188

Tool Categories:
wrenches : wrench components
woodworking machines : specialty machines : tool making machines

Assignees:
None

Manufacturer:
L. & A.G. Coes & Co. - Worcester, MA

Witnesses:
John D. Washburn
J. Henry Hill

Patent Dates:
Granted: May 08, 1860

Patent Pictures:
L. & A.G. Coes -- Making Metal Tools -- Pat. May 8, 1860
USPTO pdf tiff
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Description:
The patent is the shape of rolls designed to shape the main bar of Coes wrenches, and a guide bar associated with the rolls to insure positioning of the work piece.

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