| 摘要 |
505,345. Twisting - apparatus for imparting two twists per revolution. BARMER MASCHINENFABRIK AKT.-GES. Oct. 17, 1938, No. 29983. Convention date, Dec. 18, 1937. [Class 120 (ii)] A thread-engaging device comprising felt 5 wound on a spindle 6 below the tension device 3 is provided in the central hollow spindle of double-twist apparatus to engage the yam from the supply bobbin so as to arrest the delivery of yarn after breakage. |
