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US Patent: 1,146,120
Chain Pipe Wrench
George Amborn - Chaplinville, CT

USPTO Classifications:

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

J. H. Williams & Co. - Brooklyn, NY

Not known to have been produced

Charles B. Harris
John B. Payne
René Bruine
T. F. Wallace

Patent Dates:
Applied: Feb. 19, 1914
Granted: Jul. 13, 1915

Patent Pictures:
George Amborn patent July 13, 1915
USPTO pdf tiff
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The second of two parallel patents that present modifications and improvements to the "cable chain" wrench based on patents no. 876,927 and 952,860. In this modification, the hooks for the free end of the chain are part of the handle piece rather than the internal sides of the jaw plates. see also 1,146,119.

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