US Patent: 553,362 - Pipe Wrench


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US Patent: 553,362

Pipe Wrench

Patentee:

Jay K. Sheffy (exact or similar names) - Chicago, IL

USPTO Classifications:

81/90.2

Tool Categories:

wrenches : pipe wrenches

wrenches : wrench adjustment types : self-adjust wrenches

Assignees:

None

Manufacturer:

Sheffy Mfg. Co. - Chicago, IL

Witnesses:

Patent Dates:
Applied:	Aug. 17, 1895
Granted:	Jan. 21, 1896

Patent Pictures: [ 1 | 2 | 3 ]

Jay K. Sheffy Pat. Jan. 21, 1896

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SHEFFY Pipe Wrench (1897 write-up) )FLICKR)

Description:

The cam action of the handle pushes the "pivoting" jaw toward the hook jaw. The specifications note the wrench would work on pipe or nuts. Corresponding British patent GB-189601485 registered Jan 21, 1896 claimed an Aug. 17, 1895 effective date.