US Patent: 810,230
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| Bit-Extender
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Patentee:
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| William B. Swan (exact or similar names) - Seymour, CT |
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Patent Dates:
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| Applied: |
Aug. 18, 1905 |
| Granted: |
Jan. 16, 1906 |
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Jeff Joslin (dm)
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Description: |
| Though Swan references his earlier bit-extender 759042, this patent differs by replacing a toothed lever with a spring-loaded catch which is pressed firmly into contact with the notched tang of the bit by turning a threaded sleeve down on the head of the device. This bit-extender was being offered by the James Swan Company at least as late as 1920. |
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