US Patent: 39,326
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| Improvement in lathes
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Patentees:
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| John Q. Wright (exact or similar names) - Fitchburg, MA |
| Salmon W. Putnam (exact or similar names) - Fitchburg, MA |
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Patent Dates:
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| Granted: |
Jul. 21, 1863 |
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Patent Pictures:
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1 | 2
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Jeff Joslin
Vintage Machinery entry for Putnam Machine Co.
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Description: |
| "Our invention has for its object to connect and disconnect the feed of lathes, &c., in a more simple and efficient manner than has heretofore been accomplished; and it consists in the employment of peculiar swivel or 'union-jointed' nuts, so arranged in connection with friction-clutches that the gears which operate the side and cross feeds may be instantaneously thrown in or out of action, as may be required." |
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