US Patent: 548,385
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Bit
Auger Bit with Detachable Tip
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Patentee:
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| Frank W. Nelson (exact or similar names) - Chicago, IL |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jun. 03, 1895 |
| Granted: |
Oct. 22, 1895 |
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Patent Pictures:
[
1 | 2
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USPTO (New site tip)
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Jeff Joslin (dm)
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Description: |
| Auger bit body to be supplied with up to twenty interchangeable tips held in place by a threaded lead screw and a spring catch in the body of the bit. Another claim has to do with a pair of cutting lips and spurs, on the interchangeable tips, at different levels and on different circumferences. The bit is also to be supplied with a depth stop (illustration 2). |
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