US Patent: 2,387,294
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| Thread-Cutting Mechanism
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Patentees:
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| Charles A. Reimschissel (exact or similar names) - Waynesboro, Franklin County, PA |
| Harry Davies (exact or similar names) - Waynesboro, Franklin County, PA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Dec. 20, 1943 |
| Granted: |
Oct. 23, 1945 |
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Joel Havens
"Vintage Machinery" entry for Landis Machine Co.
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Description: |
| Claim:
Heretofore, such threading has most often been done as a separate operation on a special machine tool, such as is disclosed in Patent 2,017,764, issued 15 October, 1935, to S.W. Mathias. For tubing and other related cylindrical stock, such a machine is most efficient and economical however, it does not adapt itself to work, which requires successive metal forming operations, such as are normally performed on a turret lathe. Since it usually is disadvantageous to transfer the work to a special machine merely to thread it, the operators sometimes resort to a single point threading tool mounted in one of the stations of the turret lathe. However, the required repeated passages of such a tool over the work to generate the desired thread depth is extremely wasteful of the time of an expensive machine. To correct that condition, and to provide further advantageous features, my present die head has been designed to incorporate all the advantages of the one disclosed in the aforementioned Mathias patent and yet is compact enough to be mounted on a turret lathe for the production of threads of the types inherent to oil well supplies.
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