US Patent: 59,571 - Improvement in Wrenches


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US Patent: 59,571

Improvement in Wrenches

Patentee:

W. Evans (exact or similar names) - Forestville, CT

USPTO Classifications:

81/145

Tool Categories:

wrenches : wrench adjustment types : quick adjust wrenches

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Hobart Booth

Laporte Hubbell

Patent Dates:
Granted:	Nov. 13, 1866

Patent Pictures:

W. Evans Pat. Nov. 13, 1866

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Description:

The quick adjust mechanism on the movable jaw is a thumb lever moving a catch with teeth. The teeth on the catch engage a rack on the back of the bar.