| 摘要 |
<p>Polyamide, polyacrylic or polyester yarn false twisting device formed by three sets of discs mounted on respective shafts arranged at the corners of an equilateral triangle such that their peripheries intersect at a common pt to a define a series of yarn passages is provided with means which permit of angular adjustment of two shafts wrt to the third shaft so as to control the contact pressure of the discs with the yarns to prevent formation of loops and snagging.</p> |
