US Patent: 762,947
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| Screw Threading Die ..
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Patentee:
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| Augustus M. Saunders (exact or similar names) - McKeesport, Allegheny County,, PA |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Applied: |
Jan. 31, 1903 |
| Granted: |
Jun. 21, 1904 |
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Joel Havens
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Description: |
| Abstract:
My invention relates to screw-cutting dies or chasing-cutters; and its object is -to provide a die having a plurality of cutting-faces and so mounted in the die holder or stock-that when one of the cutting-faces breaks or chips off another can be quickly turned into position, and thus obviate the loss of time necessary to remove the entire die-rings and dies and replace them by new ones.
Claim:
It will be observed that each of my dies comprises practically six separate cutters or chasing-tools, and the life of each die is practically that of six individual cutters. By merely loosening the steady-rest the dies can be turned around so as to bring another cutting-face into operative position, thus saving a great deal of time in case of breakage while at work. |
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