Die for cutting screw-threads
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United States of America Patent
Stats
-
Aug 11, 1981
Grant Date -
N/A
app pub date -
Jul 18, 1979
filing date -
Jul 19, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A die for cutting screw-threads, especially for cutting threads into steel for reinforcing concrete and the like with an external thread cutting machine to which the die is operatively connectible by means of a mounting portion having a support surface is disclosed. The die includes a cutting portion having a plurality of cutting teeth arranged in a cutting plane and a guide portion adjacent said cutting portion, which guide portion has a plurality of teeth arranged in a guide plane. The length of the guide portion corresponds to about 3 to 6 times the length of the cutting portion and is approximately 10 to 20 times the length of the cutting plane.
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