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US Patent: 653,943
Chain Wrench
George W. Bufford - New York, NY

USPTO Classifications:

Tool Categories:
wrenches : pipe wrenches : chain and strap wrenches

J. H. Williams & Co. - New York, NY

Not known to have been produced

A. J. Dooher
James H. Gilvarry
J. Staib
Charles H. Smith

Patent Dates:
Applied: Jan. 11, 1900
Granted: Jul. 17, 1900

Patent Pictures:
George W. Bufford patent July 17, 1900
USPTO pdf tiff
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The pivot for the "fixed end" and gripping hooks for the "free" end of the chain enables the entire chain structure to swing as a loop between the fixed jaws. Variants for "link chain" and "cable chain" are shown.

L. W. Terrell & son - patent attorney s

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