US Patent: 135,406 - Improvement in Dies for Making Wrench-Heads


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US Patent: 135,406

Dies for Making Wrench-Heads
Improvement in Dies for Making Wrench-Heads

Patentee:

Luke Chapman (exact or similar names) - Collinsville, CT

USPTO Classifications:

72/411, 76/114

Tool Categories:

woodworking machines : specialty woodworking machines : tool making machines

wrenches : wrench components : wrench jaw components

tool making : making wrenches

Assignees:

Collins Co. - Collinsville, CT

Manufacturer:

Collins Co. - Collinsville, CT

Witnesses:

Oliver F. Perry

Edward H. Sears

Patent Dates:
Granted:	Feb. 04, 1873

Patent Pictures:

Luke Chapman Wrench Head Dies (Pat. Feb. 4, 1873)

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Description:

Wrench head forming dies for a press type manufacturing operation rather than a forging operation. The patent shows the dies and describes the process, but does not show or describe the machine the dies are used in. Mr. Chapman states explicitly in the specifications the machine using these dies would be separately described and patented.