US Patent: 755,504
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| Variable Speed Mechanism
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Patentees:
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| Charles F. Laur (exact or similar names) - Cincinnati, Hamilton County, OH |
| Albert E. Robinson (exact or similar names) - Covington, Kenton County, KY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Oct. 19, 1903 |
| Granted: |
Mar. 22, 1904 |
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Joel Havens
"Vintage Machinery" entry for American Tool Works Co.
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Description: |
| Wood & Wood - patent attorneys
Claim:
The accompanying drawings show the improvement as an individual drive; but the prime object is to incorporate it into a machine-tool organization either as a variable-speed counter-shaft or it may be built directly into the machine-frame as, for instance, into the headstock of a lathe. The most acceptable method, however, for some classes of tools is to drive from a counter-shaft to the. upper shaft on the variator and couple the driven shaft or lower one to the first work-shaft of the machine. |
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