US Patent: 45,850
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Improved Machine for Forging File Blanks
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Patentee:
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William T. Nicholson (exact or similar names) - Providence, RI |
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Patent Dates:
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Granted: |
Jan. 10, 1865 |
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Russ Allen. "Vintage Machinery" entry for W. T. Nicholson
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Description: |
Swage forming of file blanks to a consistant shape for machine cut files. Although the text makes no mention of his file machine patents, 42,216 and 42,217, it is assumed that this was a natural development in support of his machine cut file operations. |
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