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US Patent: 131,357
Improvement in Pipe-Tongs
Patentee:
Andrew B. Lipsey (exact or similar names) - West Hoboken, NJ

USPTO Classifications:
81/131, 81/409.5

Tool Categories:
wrenches : pipe wrenches : pipe tongs

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Wm. E. Simon
Robert L. Quigley

Patent Dates:
Granted: Sep. 17, 1872
Antedated: Sep. 12, 1872

Patent Pictures:
Andrew B. Lipsey Pat. Sept. 17, 1872
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Description:
Lipsey describes this patent as an improvement on his Aug. 15, 1865 patent (no. 49424). In this patent, the bar with the "hook jaw" has a center slot with a serrated fulcrum piece, and the bar with the "tooth" has rack teeth to engage the serrations on the fulcrum. This feature enables the tongs to be adjusted to fit a range of sizes.

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