US Patent: 400,660
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| Machine for grinding Shimer-molding bits, &c.
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Patentee:
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| Hiram C. Gilbert (exact or similar names) - Burlington, VT |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jul. 05, 1888 |
| Granted: |
Apr. 02, 1889 |
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Jeff Joslin
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Description: |
| "My invention relates to an improvement in sharpening-machines which are intended more especially for sharpening circular bits of matcher-heads; and it consists in the combination of a revolving emery-wheel, which is mounted in vertical adjustable bearings, an arbor upon which the matcher-head is placed to be sharpened, a frame through which the mandrel passes, a revolving block by which the mandrel is adjusted vertically, a handle for horizontally revolving the adjusting-block, and a carriage by means of which the head is moved back and forth in relation to the emery-wheel..." |
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