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US Patent: RE13,957
Chain Repairing Implement
Patentee:
John N. Macdonald - Hartford, CT

USPTO Classifications:
29/239, 29/268, 30/259, 7/134, 72/409.01

Tool Categories:
pliers

Assignees:
None

Manufacturer:
J.N.M. & Co. - Hartford, CT
J. N. Macdonald & Co. - Weathersfield, CT

Witnesses:
C. E. Parsons
Edward L. Tolson
R. B. Ellms
T. F. Russell

Patent Dates:
Applied: Jun. 25, 1912
Granted: Aug. 03, 1915

Reissue Information:
Reissue of 965,722 (Jul. 26, 1910)

Patent Pictures:
John N. Macdonald Reissue Pat. Aug. 3, 1915
USPTO pdf tiff
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Description:
The jaw features are designed to spread and close tire chain cross link connections.

A 1912 ad for the NECESSITY Chain Repair Tool shows a version closely resembling Macdonald's subsequent patent (no. 1,041,826).

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