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US Patent: 65,162
Improvement in Pipe-Wrenches
Improvement in Pipe-Tongs
James R. Brown - Boston, MA

USPTO Classifications:
81/129, 81/394, 81/409.5

Tool Categories:
wrenches : pipe wrenches : pipe tongs

James R. Brown - Boston, MA
W. S. Lovell - Cambridgeport, MA

Not known to have been produced

R. H. Eddy
F. P. Hale, Jr.

Patent Dates:
Granted: May 28, 1867

Patent Pictures:
James R. Brown Pat. May 28, 1867
USPTO pdf tiff
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The fulcrum pin is on a spring so it can be pulled back to employ one of several pivot holes in the other jaw.

The example of Brown's pipe tongs shown as picture #738 in "Antique & Unusual Wrenches," by Schulzes matches patent no. 150,131, although this patent is cited there. Ken Cope's "American Wrench Makers 1830-1930" gives Brown as the manufacturer.

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