US Patent: 481,690
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| Ratchet Wrench
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Patentee:
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| Pitre Cossette (exact or similar names) - Crystal Falls, MI |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jun. 03, 1892 |
| Granted: |
Aug. 30, 1892 |
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Patent Pictures:
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Pitre Cossette patent August 30, 1892 |
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Stan Schulz
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Description: |
| An improvement to patent no. 416,154 (Dec. 3, 1889). The sockets are interchangeable. One socket of each pair has a long shank with a square bearing surface and hole for a retaining pin. The other socket of each pair has a square frame with a matching hole for the retaining pin. There are double sets of ratchet teeth and pawls. A cam ring on the shank can disengage either pair of pawls. |
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