US Patent: 965,722
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| Chain Repairing Implement
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Patentee:
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| John N. Macdonald (exact or similar names) - Hartford, CT |
| USPTO Classifications: |
| 7/134 |
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Patent Dates:
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| Applied: |
Jul. 14, 1909 |
| Granted: |
Jul. 26, 1910 |
| Reissue Information: |
| Reissued as RE13,957 (Aug. 03, 1915) |
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Patent Pictures:
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John N. MacDonald patent July 26, 1910 |
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Stan Schulz
J. N. Macdonald NECESSITY chain pliers ca. 1912 (FLICKR)
STEVENS NECESSITY (1925) - (FLICKR)
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Description: |
| The jaw features are designed to spread and close links on tire chain cross bars.
A 1912 ad for the NECESSITY Chain Repair Tool shows a version close in appearance to Macdonald's subsequent patent (no. 1,041,826). In the 1920s, it was included in the STEVENS product line-up.
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