US Patent: 6,253
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Machinery for turning lasts, &c.
Machinery for turning lasts and other irregular figures from reverse patterns
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Patentees:
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| Charles Hartshorn (exact or similar names) - Gardiner, ME |
| Elbridge Webber (exact or similar names) - Gardiner, ME |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Apr. 03, 1849 |
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Jeff Joslin
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Description: |
| Described as an improvement on Thomas Blanchard's pattern lathe (pat. no. 3,131X); in this patent, a "reverse pattern" of the object to be copied is produced, and the "reverse pattern" is then used as a guide for subsequent production of the final object. |
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