US Patent: 98,028
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| Grinding Machine
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Patentees:
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| George T. Chattaway (exact or similar names) - Brooklyn, NY |
| E. D. Dickinson (exact or similar names) - New York, NY |
| John Dickinson (exact or similar names) - New York, NY |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Dec. 21, 1869 |
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Joel Havens
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Description: |
| Our invention is made with special reference to the grinding of scissors with uniformity in the angle of the cutting-edge, and that by a portable apparatus, adapted to use upon a sewing-machine, at the place "Where the bobbin-winder is usually applied, so as .to' be driven by the belt 'that leads to the main shaft and fly-wheel.
We employ a swinging rest, upon which the scissors blade is to lie, so as to adjust the angle at which the cutting-hedge is to be ground,, by moving the .said rest by means of screws, and this rest is upon a movable bed, and combined with a revolving grinding-wheel.
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