US Patent: 725,141
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| Speed Changing Mechanism
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Patentees:
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| Albert E. Robinson (exact or similar names) - Covington, Kenton County, KY |
| Charles F. Laur (exact or similar names) - Cincinnati, Hamilton County, OH |
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Patent Dates:
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| Applied: |
Oct. 17, 1902 |
| Granted: |
Apr. 14, 1903 |
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Joel Havens
American Tool Works Lathe
"Vintage Machinery" entry for American Tool Works Co.
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Description: |
| S. F. Herbsleb - patent attorney
Claim:
It is the object of our invention to provide new and improved speed-changing mechanism for machinery of the class described and awide range of changes for such speed changing mechanism and to provide speed-changing mechanism comprising primary speed changing mechanism embracing a cone of gears and tumbler-gearing meshing with the respective gears of the cone, secondary speed changing mechanism embracing clutch-engaged gearing and intermediate gears therefor, and tertiary speed-changing mechanism embracing auxiliary gearing for the latter, whereby the range of variations in speed is materially increased.
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