| 摘要 |
The invention is directed to means for reducing the friction load between the butts of the needles and the needle operating cams of independent needle knitting machines and also for reducing the friction load between the needles and the sinkers of such machines and the yarn knitted thereby. Such reduction of frictional loads is achieved by applying high frequency vibrations or oscillations, suitably in the high sonic to the ultrasonic range, to the needle operating cams of the machine by the use of electromechanical transducers positioned in contact with and for transmission of vibrations to the cam boxes or to a ring on which the cam boxes are mounted.
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