US Patent: 2,533,254
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| Lathe Tool
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Patentee:
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| Elgin B. Whigam (exact or similar names) - San Francisco, San Francisco County, CA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Sep. 10, 1945 |
| Granted: |
Dec. 12, 1950 |
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Joel Havens
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Description: |
| Claim:
Lathe tools of the type referred to commonly are supported in the tool post of an engine or turret-lathe and carry a tool bit that may have one or more cutting edges, adapted to bear against the interior surface of a bore in material secured to the chuck of the lathe so as to turn a thread therein upon rotation of the material there against. Similar tools may also be used to carry other shaped bits for performing other cutting operations on the inside of a bore. In using such tools for cutting threads it is usually necessary to make a plurality of cuts, often as many as eight or ten in order to cut a thread of the desired depth without damaging the material. With tools heretofore used, it has been necessary to adjust the lathe so that the tool bit is out of engagement with the thread after the completion of each cut before the tool can be removed from the bore and the next cut started. In addition there has been no facile means provided for stopping threads at a predetermined longitudinal position in the bore. |
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