US Patent: D19,412 - Design For an Insertible Jaw For Wrenches


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US Patent: D19,412

Design For an Insertible Jaw For Wrenches

Patentee:

Bernard Donohue (exact or similar names) - Yonkers, NY

USPTO Classifications:

81/185.1, D8/21

Tool Categories:

wrenches : wrench components : wrench jaw components

Assignees:

None

Manufacturer:

Tower & Lyon - New York, NY

Witnesses:

James L. Norris

James A. Rutherford

Patent Dates:
Applied:	Oct. 15, 1889
Granted:	Nov. 12, 1889

Patent Pictures: [ 1 | 2 | 3 | 4 ]

Bernard Donohue Pat. Nov. 12, 1889

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Description:

The design for a gripping face features diagonal serrations on the gripping surface, and a straight-sided angular shank on the lower portion. The jaw piece was used in late production versions of Donohue's combination nut and pipe wrench marketed by Tower & Lyon of New York City.

See patent nos.195,589, 238,369, and 268,784 for the evolution of this wrench's features. Donohue's other Nov. 12, 1889 patent (no. 414,799) was not used.