US Patent: 622,329
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| Speed Changing Driving Mechanism for Lathes
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Patentee:
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| Francis H. Crafts (exact or similar names) - Buffalo, Erie County, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
May 05, 1898 |
| Granted: |
Apr. 04, 1899 |
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Joel Havens
"Vintage Machinery" entry for F. H. Crafts
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Description: |
| Patented in Great Britain, patent #GB-189,412,204.
Wilhelm & Bonner - patent attorneys
Abstract:
This invention relates to a driving mechanism for lathes and other machines in which it is necessary to change the speed of the machine in accordance with the nature of the material or the character of the work to be performed, and more especially to driving mechanism which permits the speed to be quickly changed, without the necessity of shifting the belt leading to the driving-pulley of the machine. Such a variable-speed driving mechanism is shown and described in Letters Patent of the United States No. 499,159, granted to me on the 6th day of June, 1893. The object of my present invention is to simplify the driving mechanism and to improve the construction of the belt-tighteners used in connection therewith. |
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