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Application filed by Nuova Roj Electrotex S R L Co LtdfiledCriticalNuova Roj Electrotex S R L Co Ltd
Publication of TW312243UpublicationCriticalpatent/TW312243U/en
Yarn feeder, especially to feed the weft yarn to gripper or projectile looms, wherein the weft yarn is unwound from a weft yarn reserve wound on a drum, onto the outlet end of which there acts a yarn braking device upstream of an outlet yarn guide. The yarn braking device, centered on the drum axis and adjustable along the drum, comprises a frustoconical braking element having a continuous surface and varying flexibility, especially along its generating lines. The yarn braking device is carried by a stiff ring support to which it is fixed close to its major circumference. The support is in turn fixedly mounted onto a bracket of the yarn feeder, the position of which is adjustable along the drum axis.
Method of compensation of tension of thread uncoiled from beam and apparatus therefornitki i ustrojjstvo dlja kompensacii natjazhenija smatyvaemojj s pochatki niti