US Patent: 235,234
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| Auger
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Patentee:
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| Richard E. Hardisty (exact or similar names) - Cincinnati, OH |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
May 06, 1880 |
| Granted: |
Dec. 07, 1880 |
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Jeff Joslin (dm)
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Description: |
| This design has no spur, rather the cutting lip slopes down (i.e. toward the wood) fairly dramatically from the lead screw, and forms a fairly acute angle with the cutting wings (opposite orientation of typical spurs). The aim is to provide a more durable bit which is easy to sharpen. |
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