US Patent: 261,758
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Ratchet-Drill
Improvement in Ratchet Drills and Wrenches
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Patentee:
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| William Pirsson (exact or similar names) - New York, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Sep. 15, 1881 |
| Granted: |
Jul. 25, 1882 |
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Patent Pictures:
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William Pirsson patent July 25, 1882 |
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Stan Schulz
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Description: |
| The ratchet can accommodate interchangeable wrench heads and drill heads. The interchangeable grooved heads are held in the frame by a wedge. There is a retainer to hold the ratchet pawl in place when the heads are interchanged. Several features of the interchangeable heads are described, but are not part of this patent as they were filed as separate applications. |
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