US Patent: 983,251
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| Variable Speed Mechanism
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Patentee:
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| Herman W. Schatz (exact or similar names) - Cincinnati, Hamilton County, OH |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Sep. 01, 1909 |
| Granted: |
Jan. 31, 1911 |
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Joel Havens
"Vintage Machinery" entry for American Tool Works Co.
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Description: |
| Claim:
A variable speed device, having a pair of step-pulleys, a belt for transmitting motion from one pulley to the second, a pair of belt-shifters, one adjacent to each pulley, means for independently shifting each beltshifter, and means for alternately actuating said belt-shifting means to effect a change of speed between one pulley as the driver, and the second as the driven. |
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