US Patent: 630,407
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| Speed-varying mechanism
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Patentee:
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| Milton O. Reeves (exact or similar names) - Columbus, IN |
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Patent Dates:
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| Applied: |
Feb. 25, 1899 |
| Granted: |
Aug. 08, 1899 |
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Jeff Joslin
Vintage Machinery entry for Reeves Pulley Co.
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Description: |
| Improvement to the Reeves pulley mechanism of patents 583,402 and 588,354, and using the drive belt of patent 581,770. This improvement is another approach to overcoming the problem of maintaining a constant belt tension as the pulleys change their ratios. The inventors' previous mechanisms use pulley elements that have faces that are not straight cones but have oblate spheroid faces that are carefully calculated to keep a constant belt length at all speed ratios. This patent uses conventional straight conical pulleys and using an eccentric lever mechanism to move the cones of the two pulleys in a non-linear manner that maintains a constant belt length. This was a winning idea although a subsequent patent, 710,714, would simply the mechanism. |
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