Friction rotor
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United States of America Patent
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-
Jun 8, 1982
Issued Date -
N/A
app pub date -
Aug 17, 1978
filing date -
Sep 10, 1974
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A friction rotor for false-twisting threads is provided with a coating of particles which are harder than the material from which the rotor has been made to provide a surface of harder particles which contact the thread as it passes over the rotor for false-twisting.
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