| 摘要 |
A device for continuously imparting a predetermined twist to an elongated tubular shaped flaccid work piece composed of first and second sets of arcuate shaped spaced apart ribs delimiting a space having a funnel shaped portion, a moving device affixed to the first and second set capable of moving the first and second set of ribs in misalignment with one another, and a device for supplying gas under pressure to the space delimited by the first and second sets of ribs.
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