| 摘要 |
<p>AERODYNAMIC RING TRAVELERS FOR YARN TWISTERS Aerodynamically profiled ring travelers of generally ear-shaped configuration and designed for movement in only one direction along the inside of a ring of a yarn twister or like machine with minimized aerodynamic resistance and ring to traveler friction, are disclosed. Any such traveler is characterized by transverse cross-sectional configurations which have, as viewed in the intended direction of movement, an oblong shape with a relatively wider or more blunt leading edge and a relatively narrower or less blunt trailing edge, and which further have an airfoil shape in certain sections of the traveler that are so oriented as to cause lift forces to be generated at those sections in opposition to the centrifugal force and, if desired, also the yarn force, acting on the traveler when the same is in use. In accordance with the invention, the traveler is provided with at least one hollow space in the region of each airfoil-shaped section, thereby to enable enlargement thereof so as to make for generation of higher lift forces without any concomitant increases in the weight of the traveler. The same principle is also applicable to generally C-shaped travelers. This abstract is not to be taken either as a complete exposition or as a limitation of the present invention, however, the full nature and extent of the invention being discernible only by reference to and from the entire disclosure.</p> |
