US Patent: 586,419
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Internal Thread-Cutter
Tap for Cutting Wood Threads
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Patentee:
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| Albert Collet (exact or similar names) - Paris, France |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Apr. 01, 1897 |
| Granted: |
Jul. 13, 1897 |
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Jeff Joslin (dm)
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Description: |
| Specifically designed for cutting threads in railway sleepers (ties) to receive threaded trenails, the primary claim has to do with a removable and replaceable cutter. |
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