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US Patent: 128,118
Improvement in Machines for Forming Wrench-Bar Heads
Patentee:
Aury Gates Coes - Worcester, MA

USPTO Classifications:
72/102, 72/191, 72/82

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

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Thomas H. Dodge
Charles H. Burleigh

Patent Dates:
Granted: Jun. 18, 1872

Patent Pictures:
A. G. Coes Pat. June 18, 1872
USPTO pdf tiff
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Description:
Die faces on one rotating member, and the position of a partially finished wrench member clamped on a second rotating member are arranged so that the successive points of contact are along a plane central between the axis of the two shafts.

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