US Patent: 24,894
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| Boring-tool
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Patentee:
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| George I. Washburn (exact or similar names) - Worcester, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Jul. 26, 1859 |
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George Langford
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Description: |
| The patent specification says, "I am aware that the stocks of boring tools, as in McDowell's Archimedean boring tool, and others, have been operated so as to turn in a continuous rotary motion....." Washburn goes on to mention a few examples making it obvious that a certain amount of inspiration had been applied to this form of tool previous to 1859. |
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