US Patent: 657
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| Friction Rollers
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Patentees:
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| Rollin Dickinson (exact or similar names) - Southington, Hartford County, CT |
| Samuel G. Merriman (exact or similar names) - Southington, Hartford County, CT |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Mar. 26, 1838 |
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Joel Havens
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Description: |
| Abstract:
The nature and object of our invention consists, in so forming the box and support for friction rollers, that they shall always run in oil, and be protected from dust and other interfering substances.
Claim:
The mode of supporting friction rollers in a tight box, filled with oil, and working them in oil, covered from dust or other foreign substances |
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