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US Patent: 640,643
John H. Fahrney - Timberville, VA

USPTO Classifications:
81/126, 81/171, 81/179, 81/185.1

Tool Categories:
wrenches : pipe and nut combination wrenches

John H. Fahrney - Timberville, VA
Arthur B. Lohr - New Market, VA

Not known to have been produced

R. M. Smith
Edwin G. McKee
J. W. Grim
M. Minnick

Patent Dates:
Applied: Oct. 02, 1899
Granted: Jan. 02, 1900

Patent Pictures:
John H. Fahrney patent January 2, 1900
USPTO pdf tiff
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A pivot point in the handle, and "ball" end on the adjusting nut stem where it fits into the ferule provide the free motion for this screw-adjusting pipe wrench to not "lock" on pipe, or to "ratchet" when used on nuts.

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