| 摘要 |
<p>Device to feed the yarn to machines making use thereof, particularly the weft yarn (T) to gripper or projectile looms, of the type in which the yarn to be fed is unwound 'in défilé' from a reserve (R) wound on a drum (3) onto the outlet end of which, where a first yarn deviation takes place, there acts a brake device (FR) which is centred on the drum axis and adjustable along the same, upstream of an outlet yarn guide (4) where a second yarn deviation takes place. Said brake device (FR) comprises a frustoconical braking element (5) with continuous surface and differentiated elasticity, carried by a stiff ring support (6) to which it is fixed close to its major circumference, and said stiff ring support (6) is mounted so as to oscillate about two axes (S1, S2) which are perpendicular one in respect of the other and both in respect of the axis of the drum (3).</p> |
