US Patent: 313,447
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| Lathe
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Patentee:
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| Salmon W. Putnam (exact or similar names) - Fitchburg, MA |
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Patent Dates:
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| Applied: |
May 19, 1884 |
| Granted: |
Mar. 03, 1885 |
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Patent Pictures:
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Joel Havens
"Vintage Machinery" entry for Putnam Machine Co.
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Description: |
| A. H.. Evans & Co. - patent attorneys
My invention relates to means applied to a lathe for changing or increasing the velocity, thereby increasing the range and capacity of the lathe for screw cutting and turning purposes; and my invention consists in the novel arrangement and combination of devices, all of which will be hereinafter more fully described, and specifically pointed out in the claims. Heretofore various devices have been applied to lathes for the purpose of utilizing the increased velocity of the ordinary cone or cone-pulley or its pinion for the purpose of increasing the power and capacity of the lathe, but for various reasons the object sought has not been successfully, obtained. To remove these difficulties, and furnish to the trade a simple and durable lathe, is the purpose of my present invention.
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