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US Patent: 273,382
Crimping Tongs
Patentee:
Frank R. Packham - Mechanicsburg, OH

USPTO Classifications:
12/110, 140/106, 606/207, 72/409.19, 72/414, 81/426

Tool Categories:
trade specific : tinsmith
pliers

Assignees:
John C. Baker - Mechanicsburg, OH
J. B. Van Doren - Fremont, OH

Manufacturer:
Packham Crimper Co. - Mechanicsburg, OH

Witnesses:
T. E. Shepherd
A. J. Shepherd
Millard R. Powers
John C. Hopkins

Patent Dates:
Applied: Nov. 15, 1882
Granted: Mar. 06, 1883

Patent Pictures:
Frank R. Packham patent March 6, 1883
USPTO pdf tiff
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Description:
Specialty tongs with crimper jaws to form tapered crimped ends on sections of sheet metal pipe. The patent includes provision for detachable secondary jaws and two pivot points for the handles to accommodate the differing jaw thickness.

Produced and marketed as PACKHAM'S CRIMPING TONGS with a single pivot and without secondary jaws.

Packham also patented a roller crimper (patent no. 225,636; and improved version 369,876).

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