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US Patent: 116,440
Instrument for Ringing Hogs
Patentees:
John Heesen - Tecumseh, MI
George Heesen - Tecumseh, MI
Henry Nyland - Tecumseh, MI

USPTO Classifications:
119/835, 606/117, 72/409.02

Tool Categories:
pliers : hog ring

Assignees:
None

Manufacturer:
Unknown

Witnesses:
George Smith
Hiram Westcott
Wm. H. C. Smith
A. W. Almqvist

Patent Dates:
Granted: Jun. 27, 1871

Patent Pictures: [ 1 | 2 ]
John Heesen, George Heesen, and Henry Nyland patent June 27, 1871
USPTO pdf tiff
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Description:
The tool forms a ring out of a sheet metal rhombus. The curves at the end of the handles are to form the initial curves; the curved shape of the jaws curls the points towards each other to form the circle. It would also work to fasten leather or similar materials.

A known example is marked only with the patent date. John Heesen patented a double-jaw hog ring pliers on April 27, 1880 (no. 226,915).

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