Abstract: An accumulator-feeder device for feeding yarn to a textile, knitting and stocking machines with a winding drum turning around a rotating axis and composed of two connected cage rotors, opposite each other, each rotor having a head from which rods protrude facing the head of the other rotor. Rods of the two rotors form peripherally corresponding cylindrical surfaces; a first rotor rests on the rotating axis, the second rotor is oscillating on an axis at right angles to the rotating axis; the peripheral surface of the first rotor has an axis which coincides with the rotating axis of the winding drum, the peripheral surface of the second rotor has an axis inclined to the rotating axis, the peripheral surface protrudes from two diagonally opposite parts of the peripheral surface forming two conical lobes adjacent to the opposite heads of the drum.

Abstract: In a yarn feeder, particularly for knitting machines, having a stationary housing and a rotational element which can be driven by a motor for winding on a yarn, and having a mechanical backturn-detent mechanism for the rotational element, which mechanism contains a detent member which is displaceable on a counter-member between a running position and a blocking position, in which blocking position the detent member engages at a braking surface. The detent member underlying a permanent drag power in each rotational direction which drag power is generated by means of friction contact in case of a rotational movement of the rotational element for displacing the detent member in dependence from the sense of rotation and in relation to the counter member either into the running position or into the blocking position. The counter-member and the detent member consist of ring bodies which are set within each other and which are rotatable in relation to each other about the rotational axis of the rotational element.