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US Patent: 234,304
Pipe Tongs
Charles H. Lovrien - Erie, PA

USPTO Classifications:
81/178, 81/185.2, 81/423

Tool Categories:
wrenches : pipe wrenches : pipe tongs

Mary A. Lovrien - Erie, PA

Noble, Hall and Co. - Erie, PA

C. Sedgwick
C. Neveux
Wm. P. Hayes
Joseph Justice

Patent Dates:
Applied: Aug. 15, 1879
Granted: Nov. 09, 1880

Patent Pictures:
Charles H. Lovrien patent November 9, 1880
USPTO pdf tiff
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The patent adds a simple screw-adjust pivot to the idea of a rotatable cubical jaw bit patented by Lovrien and Henry Banister on March 18, 1879 (pat. no. 213,376).

This patent was used in one version of the ACME PIPE TONGS produced by Noble, Hall and Co. of Erie, PA. One known example with a different retaining means for the hard cube "tooth" is marked "HOLLANDS MFG. CO. ERIE PA." and does not include "ACME PIPE TONGS" or the 1880 patent date.

Another example of the ACME PIPE TONGS is marked with patent date Aug. 6, 1872. That patent is William Campbell's patent no. 130,278.

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