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US Patent: 19,954
Wrench
Improvement in Screw-Wrenches
Patentee:
Eliphalet S. Scripture - New Haven, CT

USPTO Classifications:
81/146, 81/175, 81/DIG4

Tool Categories:
wrenches : nut wrenches
wrenches : wrench adjustment types : quick adjust wrenches
wrenches : wrench adjustment types : screw adjust wrenches

Assignees:
None

Manufacturer:
E. S. Scripture - New Haven, CT

Witnesses:
Unknown

Patent Dates:
Granted: Apr. 13, 1858

Patent Pictures: [ 1 | 2 ]
E. S. Scripture Pat. April 13, 1858
USPTO pdf tiff
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Description:
An extended adjusting knob turns through a base held in contact to a rack on the shank by a spring. The base can be lifted and shifted on the rack for quick coarse adjustment, and the knob serves both for fine adjustment and as a handle to lift the rack-engaging base. Known examples are made of iron, brass and hardwoods and are prized by collectors.

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