US Patent: 104,507
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| Method of Making Files
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Patentee:
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| Thomas S. Smith (exact or similar names) - Cincinnati, OH |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Jun. 21, 1870 |
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Joel Havens
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Description: |
| To make the files, I take a sheet of iron, steel, or other suitable metal, having a thickness adequate to the use for which it is made, and, by means of a planing-machine, groove one or both, surfaces of the sheet metal in such a manner that sharp parallel ridges are formed over the entire sheet ,of metal, Which, is then placed in the former and the files struck out. |
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