US Patent: 1,301,937
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| Belt-tightener
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Patentees:
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| Alden M. Drake (exact or similar names) - Worcester, MA |
| James N. Heald (exact or similar names) - Worcester, MA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Dec. 17, 1917 |
| Granted: |
Apr. 29, 1919 |
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Joel Havens
"Vintage Machinery" entry for Heald Machine Co.
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Description: |
| Southgate & Southgate - patent attorneys
"This invention relates to a belt tightener of a type adapted to simultaneously tighten belts running therefrom in two different directions. This type of belt tightener is found particularly useful in internal grinders and other similar machines in which a rapidly rotating spindle is mounted upon a movable cross-slide." |
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