US Patent: 420,022
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| Grinding-machine
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Patentee:
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| William Finley Steinhoff (exact or similar names) - Simcoe, ON Canada |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Sep. 08, 1887 |
| Granted: |
Jan. 21, 1890 |
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Jeff Joslin
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Description: |
| "This invention relates to machines for grinding the knives of planing-machines, and those for cutting leather, paper, cloth, &c., its object being to simplify as much as possible the construction and to improve the working of such machines, and to provide means whereby the grinding of the knives to a desired edge can be performed in a perfect manner automatically." |
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