When roller 2 contacts moving belt 1 rotation is transmitted to spindle 3 on which bobbin 4 is mounted. The thread is wound on rotating bobbin 4. When the bobbin is full, overhanging plate 5 swings with respect to axis A, overcoming the resistance of torsion spring 6, until pawl 7 engages overhanging plate 5. At this, roller 2 contacts braking lever 8 and is stopped, enabling filled bobbin 4 to be readily removed from the spindle. By turning bracket 9 with respect to axis B, pawl 7 is disengaged from plate 5. Plate 5 is returned by spring 6 to its initial position and rotation is transmitted again to spindle 3 on which an empty bobbin has been mounted.
$2105$FL,FD$