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US Patent: 93,179
Pipe Tongs
Patentee:
R. Crain - Dennison Post Office, PA

USPTO Classifications:
81/363, 81/424.5

Tool Categories:
wrenches : pipe wrenches : pipe tongs

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
J. A. Graham
O. C. Crane
O. Hindman
Jno. A. Brooks

Patent Dates:
Granted: Aug. 03, 1869

Patent Pictures:
R. Crain Pat. Aug. 3, 1869
USPTO pdf tiff
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Description:
The tightening action is accomplished by a transverse link bewtween the two handles. The movable jaw is connected to the hook jaw by the transverse link and a sliding collar. The patented features include the circular shape of the jaws.

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