| 摘要 |
An apparatus and method for applying a false twist to a continuously traveling synthetic yarn by engaging the yarn along a directed path of travel with a uniroll member having a plurality of axially spaced yarn contacting surfaces bearingly supported for rotation about an axis, and yarn guide means for engaging and retaining the continuously traveling yarn along its predetermined path of contacting travel against the spaced yarn contacting members to impart a twist to the yarn in a substantially helical path from initial engagement to disengagement with the uniroll device to impart a false twist to the yarn.
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