US Patent: 425,647


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US Patent: 425,647

Wrench

Patentee:

Thomas Young (exact or similar names) - Bradford, PA

USPTO Classifications:

81/128, 81/141, 81/143, 81/177.1, 81/311, 81/361, 81/391, 81/420

Tool Categories:

wrenches : wrench adjustment types : quick adjust wrenches

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Patent Dates:
Applied:	Jun. 25, 1889
Granted:	Apr. 15, 1890

Patent Pictures:

Thomas Young patent April 15, 1890

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Description:

Quick-adjust sliding-jaw wrench with provision for a shiftable rack in the handle that allows for finer adjustment. The second set of jaws is to allow for places where the handle of the clamping cam would interfere with the wrench's use.