US Patent: 492,199 - Pipe Tongs and Wrench


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US Patent: 492,199

Pipe Tongs and Wrench

Patentee:

Henry Hammond (exact or similar names) - Ballston Spa, NY

USPTO Classifications:

81/102, 81/177.1, 81/404, 81/93

Tool Categories:

wrenches : pipe wrenches : pipe tongs

wrenches : wrench adjustment types : screw adjust wrenches

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Patent Dates:
Applied:	Aug. 29, 1892
Granted:	Feb. 21, 1893

Patent Pictures:

Henry Hammond patent February 21, 1893

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Description:

A couple of alternate forms are described in the specifications and shown in the drawings. What they have in common is a threaded main shank and fixed jaw formed of a forging, with a secondary jaw formed of a flat piece bent into shape, and the position of that jaw determined by an adjusting nut that works on the threaded main shank.