| 摘要 |
<p>A tufting machine having: means for metering predetermined lengths of yarn, including a rotatable yarn feed with substantially accurate improved drive and braking means; pneumatic yarn transport means, including selective control of gas flow, for transporting selected metered lengths of yarn to a tufting station for severance into yarn bits and implantations into a backing; and retraction means for retracting, with minimum yarn deformation, yarn not selected for severance and implantation.</p> |
