US Patent: 4,924
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| Spinning Sheet Metal
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Patentee:
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| Alonzo Heaton (exact or similar names) - Irving, Chautauqua County, NY |
| USPTO Classifications: |
| 72/85 |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Jan. 13, 1847 |
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Patent Pictures:
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Joel Havens
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Description: |
| Abstract:
To raise (technically) or to make hollow a piece of tin, the plate (being cut circular) is placed upon the concave, (the setscrew over the journal of the shaft being set back, so as to lift the cone off the concave.) The cone is then set down upon it by means of the screw over the journal and the crank turned. This operation will form a hollow piece.
Claim:
The combination of the concave A with the cone B, for raising or making concave a plate of tin or other metal. |
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