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US Patent: 145,929
James R. Brown - Cambridgeport, MA

USPTO Classifications:
81/166, 81/401, 81/403

Tool Categories:
wrenches : pipe wrenches : pipe tongs

James R. Brown - Cambridgeport, MA
Hazen P. Huntoon - Cambridgeport, MA

Not known to have been produced

R. H. Eddy
J. R. Snow
S. W. Piper
L. N. Moeller

Patent Dates:
Applied: Oct. 31, 1873
Granted: Dec. 30, 1873

Patent Pictures:
James R. Brown Pat. Dec. 30, 1873
USPTO pdf tiff
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The patent presents a couple of variations on means of moving the pivot point of a pipe tongs. The specifications note similarities and differences between this patent and nos. 134,798 and 136,089.

This design along with alternatives in 142,143 and 144,253 was folded into a broader patent in Canada CA-2,923 and Britain GB-187303762 with Hazen P. Huntoon as assignee.

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