Abstract: A brake block for a brake of an open-end spinning rotor includes a take-up for releasable affixing to a brake block support. The brake block has at least two braking surfaces, whereby one braking surface in relation to the supporting surface of the open-end spinning rotor is, in comparison to the other braking surface, set back a certain distance. The result is that, during the first operational application of the brake block, only one braking surface touches the open-end spinning rotor, while the other braking surface comes into effect only after a predetermined amount of wear of the first braking surface.

Abstract: A brake block for a brake of an open-end spinning rotor includes a take-up for releasable affixing to a brake block support. The brake block has at least two braking surfaces, whereby one braking surface in relation to the supporting surface of the open-end spinning rotor is, in comparison to the other braking surface, set back a certain distance. The result is that, during the first operational application of the brake block, only one braking surface touches the open-end spinning rotor, while the other braking surface comes into effect only after a predetermined amount of wear of the first braking surface.

Abstract: The spinning stations of a spinning machine each have a drafting unit and a stopping device for fiber material fed to the drafting unit. A first carriage is movable along the length of the spinning machine, which carriage comprises a sensor for detecting a broken thread at a spinning station. Spatially separated from this first carriage is a second carriage, which is moveable along the length of the spinning machine, which second carriage is provided with an actuator for activating the stopping device of a spinning station in need of maintenance.

Abstract: The spinning stations of a spinning machine each have a drafting unit and a stopping device for fiber material fed to the drafting unit. A first carriage is movable along the length of the spinning machine, which carriage comprises a sensor for detecting a broken thread at a spinning station. Spatially separated from this first carriage is a second carriage, which is movable along the length of the spinning machine, which second carriage is provided with an actuator for activating the stopping device of a spinning station in need of maintenance.

Abstract: A transport belt for transporting a fiber strand to be condensed through a suctioned condensing zone of a spinning machine, an air-permeable, woven transport belt is provided. This transport belt is driven on the one hand by means of a friction drive of a nipping roll and on the other hand slides at the same time over a stationary sliding surface. The transport belt is woven from fine threads in such a way that, despite a small mesh width, a good flow rate of air is achieved. At regular intervals, coarser threads are woven in transversely to the transport direction, whose structure is such that the friction between a nipping roller, which effects the friction drive, and the transport belt is increased.

Abstract: A condensing zone lies downstream of the front roller pair of a drafting unit of a spinning machine, in which condensing zone a drafted fiber strand is condensed. The condensing zone comprises a sliding surface having a suction slit, which sliding surface serves as a guide for a circulating, perforated transport belt. The transport belt transports the fiber strand to a nipping roller, which presses the fiber strand and the transport belt against the sliding surface. The nipping roller is connected to a drive, from which drive said nipping roller can be cut off in age the case of a break in the transport belt.

Abstract: An opening device for an open-end spinning aggregate has a housing which takes up an opening roller. The housing includes a base plate arranged perpendicular to the axis of the opening roller. The base plate is covered by a flat metal sheet, which is provided with an anti-adhesive coating. The anti-adhesive coating is preferably a ceramic layer shot through with PTFE.

Abstract: For an opening roller of an open-end spinning arrangement, a coating is provided for the mounting made of needles or teeth and the circumferential surface of the roller, which coating consists of a metal carbide coating and a thin nickel layer applied over it.

Abstract: A splicing arrangement for the connecting of yarns, particularly of staple fiber yarns. The splicing arrangement includes a splicing head, yarn clamps, cutting devices, loop pulling devices and devices for preparing the yarn ends which were cut with respect to their length. It is provided that the devices for preparing the yarn ends each comprise a friction surface in the form of a driven apron which moves in the direction of the yarn end, the apron, together with a countersurface, forming a gap receiving the yarn end to be prepared.

Abstract: A holding arrangement for a spindle of ring spinning or ring twisting machines. The holding arrangement includes a spindle housing which can be inserted in a receiving bore of a spindle rail and tightened by a ring flange and a nut screwed onto an external thread. The receiving bore includes a guide surface for guiding the spindle housing over only a portion of the length of the receiving bore while permitting tilting of the spindle housing in the receiving bore. Between the spindle rail and the ring flange and/or the nut, an adjusting ring is arranged which can be rotated when the nut is at least loosened. The adjusting ring is constructed as a non-uniform spacing element, by the rotating of which the relative position of the spindle housing and the spindle rail can be adjusted.

Abstract: In the case of a brake for an open-end spinning rotor which, by a shaft, is disposed in a wedge-shaped gap of at least one pair of supporting disks, two mirror-symmetrically arranged tong arms are provided which can each be swivelled around an axle extending in parallel to the shaft. The double-armed tong arms, at one arm, are equipped with brake linings which can be applied to the shaft. The arms facing away from the shaft are spread apart by a common actuating element. The actuating element can be moved freely in moving direction of the arms.

Abstract: An opening roller for an open-end spinning arrangement is disclosed which contains a basic body pressed onto a shaft. This basic body contains an exchangeable ring mounting which is held by means of its end faces between a flange of the basic body and a tension disk. It is provided that the tension disk fitted onto the shaft is loaded in the axial direction by means of a screw which is screwed axially into the shaft and which, by means of the head, rests against the front face of the shaft. A spring element, preferably a cup spring, is arranged between the head of the screw and the tension disk.