US Patent: 300,445 - Manufacture of Wrench Forgings


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US Patent: 300,445

Manufacture of Wrench Forgings

Patentee:

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

USPTO Classifications:

72/339, 72/378, 76/114

Tool Categories:

wrenches : wrench components

Assignees:

Collins Co. - Collinsville, CT

Manufacturer:

Collins Co. - Collinsville, CT

Witnesses:

Patent Dates:
Applied:	Oct. 29, 1883
Granted:	Jun. 17, 1884

Patent Pictures:

Luke Chapman patent June 17, 1884

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Description:

The patent describes successive stages in producing the shank and fixed jaw portion of a monkey wrench from a common size of bar stock. The initial patent application was dated April 22, 1882, with a re-application in 1883.