| 摘要 |
An anti-ballooning ring confining an orbiting yarn in spinning or twisting machinery has an inner surface divided into a convex lower annular contact zone, hugged by the descending yarn body, and a concave upper annular zone or groove diverging from the path of the yarn so as to be swept only by radially outwardly protruding fiber ends. A wick, dipping into a supply of lubricant remote from the ring, traverses a ring-supporting tube and has an exposed stretch lodged in the groove for engagement by such protruding fiber ends which pick up lubricant therefrom and carry it onto the convex contact zone.
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