US Patent: 483,803 - Improvements in Ratchet-Wrenches


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US Patent: 483,803

Wrench
Improvements in Ratchet-Wrenches

Patentees:

Lawrence I. Folk (exact or similar names) - Dubuque, IA

John W. Nairn (exact or similar names) - Dubuque, IA

Louis H. Dempsey (exact or similar names) - Dubuque, IA

USPTO Classifications:

81/116

Tool Categories:

wrenches : wrench adjustment types : wedge adjust wrenches

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Patent Dates:
Applied:	May 28, 1892
Granted:	Oct. 04, 1892

Patent Pictures:

Lawrence I. Folk, John W. Nairn and Louis H. Dempsey patent October 4, 1892

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Description:

The size adjustment is held by a sliding wedge. The jaw frame on which this wedge-adjust operates can be closed by a toggle-link lever and is held open by a spring.