US Patent: 145,488
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| Grinding Machines
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Patentee:
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| Perley D. Cummings (exact or similar names) - Portland, ME |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Aug. 25, 1873 |
| Granted: |
Dec. 16, 1873 |
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Joel Havens
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Description: |
| The object of my invention is to produce a machine for grinding tools, iron, wood, and other substances. It consists of a rim or annulose wheel rotating upon a proper shaft, in combination with supports or brackets and an outer rim or band. It also consists of the combination of the rim-wheel with an inner bed or table. |
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