Abstract: A spinning device of a rotor spinning machine has a spinning rotor made of magnetically hard material, seated for rotation in an air chamber connected with an underpressure source. A stator includes at least two electromagnetic coils is arranged around the outer circumferential surface of the spinning rotor. The spinning rotor is made as a ring consisting of magnetically hard material and magnetized normal to the plane passing through the axis of the spinning rotor.

Abstract: The invention relates to a yarn (2) twist retention (1) on an open-end spinning machine comprising a part of a wall of a bent yarn (2) delivery channel (5) forming the inner side (501) of the bent section (50) of the bent yarn (2) delivery channel (5), this section of the wall of the bent yarn (2) delivery channel (5) on the yarn (2) twist retention member being provided with at least one yarn (2) twist retaining means. The yarn (2) twist retention means is made as a longitudinal groove (8) in a part of the wall of the bent yarn (2) delivery channel (5) forming the inner side (501) of the bent section (50) of the bent yarn (2) delivery channel (5), the walls (80) of the longitudinal groove (8) being situated symmetrically to each other along the longitudinal symmetry plane of the bent section (50) of the bent yarn (2) delivery channel (5).

Abstract: A method and apparatus for fibre production by recycling waste fibre material includes pressing the waste fibre material with a pressure element along a contact pressure line onto a surface of a feed roller. The pressure force of the pressure element is variable along the length of the contact pressure line depending on the thickness of the fibre material at a respective position on the contact pressure line so that a thick fibre material does not substantially influence processing of a thinner fibre material along the contact pressure line. The pressure element is radially adjustable relative to the feed roller and is configured with at least one adjusting end pressured device. The pressure element may also be adjustable along the circumference of the feed roller.

Abstract: A method and device are provided for supplying empty tubes to winding devices of a textile machine comprising a plurality of operating units arranged next to each other in at least one line and equipped each with a winding device as a part of the operating unit, with a tube container provided at one end of the machine and coupled with a tube conveyer arranged along the line of the operating unites of the textile machine along which is also provided an attending unit adapted to travel along the line of the operating units and containing a handling device for moving a tube from the tube conveyer to a winding device. Prior to the attempt at rewinding, the handling device of the attending device lays into the winding device an empty winding tube. In case of an unsuccessful attempt at rewinding (at restoring the winding), the winding tube 22 is taken out of the winding device 1 by the attending device 4.

Abstract: A flat container of textile fiber sliver for receiving a sliver produced on a sliver producing textile machine and for feeding the sliver to a sliver processing machine taking over the sliver. The flat container has a movable bottom adapted to move vertically in the flat container, and includes an upper plate arranged adjustably and intended to receive the sliver being deposited, and a lower plate situated under the upper plate and likewise arranged adjustably. The upper plate and the lower plate are mutually coupled by an auxiliary coupling device permitting a common motion and independent motion of the upper and lower plates of the movable bottom.

Abstract: A method and device are provided for conveying tubes (2) on a textile machine in which cylindrical (21) or conical (22) tubes are conveyed, one at a time, by means of a conveyer (6) provided along a line of operating units from a tube container (5) to an attending device (4). The tube (2), while being conveyed, leans on the circumference only on the moving parts of the conveyer (6) in at least two straight sections parallel with the direction of motion of the conveyer (6). The conveyer for carrying out this method comprises two endless belts (61) arranged next to each other along the machine length in such a manner that their mutual distance is along the machine length constant and inferior to the average diameter of the tube to be conveyed (21, 22).

Abstract: A device for delivering wound bobbins from a textile machine, comprising a main conveyor of wound bobbins, the conveyor having an end, an ancillary belt conveyor which receives wound bobbins from the end of the main conveyor and conveys them in a conveying direction; and a multi-story row container at one or both lateral sides of the ancillary conveyor. The height of the ancillary conveyor is adjustable to the height of each row in the row container. An adjustment device, such as one that tilts the row of bobbins on the ancillary conveyor, causes the bobbins to move from the ancillary conveyor to a row of the row conveyor in a direction perpendicular to the motion direction of the belt of the ancillary conveyor.

Abstract: Method and apparatus for spinning-in yarn on an open end spinning machine following a yarn rupture, wherein the machine includes a plurality of operating units which wind yarn on respective bobbins and an attending device movable along the operating units to the unit at which a rupture occurred. Upon a yarn rupture, the winding of the bobbin is halted, and the bobbin is permitted to be unwound a metered length. A detecting nozzle detects the yarn end and sucks in the yarn end and moves away from the bobbin. A catching arm supports the yarn. A tension roller receives the yarn on it. The tension roller is located on a spinning head which is swingable from a position toward the bobbin to a position toward the rotor and the head is then movable to move the yarn on the roller toward the rotor. A clamp on the spinning head clamps the yarn and a trimmer trims the yarn to form the yarn end. An ancillary compensator at the spinning head deflects the yarn to compensate and then releases the yarn.

Abstract: A method and device for detecting the yarn end on a bobbin in a textile machine. The textile machine comprises a plurality of operating units situated next to each other and an attending device adapted to travel along the units and to stop at a selected one of the operating units. The attending device includes a selecting device provided with a detecting nozzle having a yarn sucking mouth. The detecting device is displaced into a detecting position in which the mouth of the detecting nozzle lies in the path of possible motion of a central tube of the bobbin. The bobbin begins to move towards the mouth of the detecting nozzle situated in its detecting position onto which the bobbin circumference comes to lie.

Abstract: A method of spinning-in yarn on open-end spinning machines in which an interruption of the spinning process is followed by the stop of the feed of the sliver (4) into the singling-out device (2) whose combing roller (22) keeps turning, and the rotor is stopped at least during its cleaning. When the rotor (1) has re-started the yarn end is returned to it and brought into contact with the newly formed fiber band. Prior to the re-starting of the rotor (1) and at the latest simultaneously with the start of the feed device (3) of the sliver (4), the surface of the combing roller (22) is acted upon by a pressure air stream acting in the sense of rotation of the combing roller (22) between the place of supply of the sliver (4) to the combing roller (22) and the mouth of the fiber feed channel (212) to the rotor (1) so as to remove from the clothing (221) of the combing roller (22) fibers and sticking impurities. The invention also relates to a device for carrying out the method.

Abstract: A combing roller for use in a singling-out device of an open-end spinning machine includes a cylindrical body having a plurality of teeth formed on its outer circumference. Each of the teeth is formed by the intersection of at least one spiral circumferential groove with a number of recesses. The recesses are disposed on the circumference of the cylindrical body at an angle of up to 45 degrees relative to the direction of a force generating line which is parallel to a rotational axis of the cylindrical body.

Abstract: The invention relates to a method of respinning-in in open-end spinning machines after a bobbin removal from the swinging arms (51, 52) of the bobbin holder (5) or at the beginning of spinning at an empty spinning station, and to a device for carrying out the method. During the fixing of the empty tube (8) between the swinging arms (51, 52) of the bobbin holder (5) at a spinning station at rest, an ancillary yarn (15) is inserted between a swinging arm (51) and the edge of the tube (8) and then gripped the swinging arm (51), then its opposite end is adapted for one spinning-in in an attending device (9) and spun-in, then is this ancillary yarn (15) together with the beginning of the newly spun yarn wound onto the tube (8) as yarn reserve, whereupon the yarn is handed over to the distributing mechanism of the machine for producing a cross-wound bobbin.

Abstract: A method and device for exchanging sliver containers on a sliver producing textile machine, particularly non-cylindrical containers, wherein the containers are supported on a support and are moved in a direction, perpendicular to their long axis past the coiling device. A respective shifting frame for the container to be filled and the adjacent container. The shifting frames grasp the two containers, raises them and enables the coiling device to fill the one container, then moves the containers to exchange the filled container for an empty one, and lowers the containers back to the supporting conveyor, wherein the sequence of filling and raising is selectively variable. The device carries out the foregoing steps. A non-circular sliver container has handles on opposite sides, particularly on its long sides, for being grasped by carrying means on the shifting frames of the device for raising and moving the containers. The handles may be holes in the container or recesses with bearing surfaces.

Abstract: A device for filling a series of non-circular cans, which are disposed on a conveyor, with sliver from a sliver producing textile machine. A coiler for delivering sliver to the cans is supported on an ancillary frame which is, in turn, supported for movement on a main frame. The cans are supported on the conveyor that moves past the coiler in a direction perpendicular to the long axis direction of the respective cans. A double acting piston cylinder arrangement moves the coiler and a cover over the can in which the coiler is disposed along the path of movement of the conveyor for moving the coiler over the can to be filled. The cover and can coiler together are moveable along the long axis plane of each of the cans by a drive for moving the coiler to deliver the sliver into the can.

Abstract: A device for severing the sliver in a filling station for cans of a textile machine producing the sliver, upon the replacement of a full can by an empty one. The filling station comprises a sliver coiling device on which there is mounted, over the gap between the transferred full can and the can just beginning to receive the sliver, a sliver holding device and also a sliver grasping device which is reversibly movably mounted on the coiling device for the sliver to move with reference to the sliver holding device thereby to sever the sliver held between the grasping and holding device by movement of the grasping device.

Abstract: In an open-end spinning machine, an empty tube is placed between the holder swinging arms of a bobbin holder of a spinning station at rest. An ancillary yarn is inserted and gripped at one end between one of the swinging arms and the edge of the tube. The opposite end of the ancillary yarn is adapted for spinning-in by cutting and shaping the opposite end which is in turn fed into a spinning unit. The ancillary yarn together with newly spun yarn is wound onto the tube through the spinning unit for making a yarn reserve. This yarn reserve is used by the open-end spinning machine for producing a cross-wound bobbin.

Abstract: A device for inserting a reinforced introducing point (1) of a sliver into a spinning unit (3) of a rotor spinning machine uses a rotatably mounted first pneumatic cylinder (4) having a piston rod (41), coupled with a non-circular static cam (8) which carries a second pneumatic cylinder (7) onto which is rotatably mounted a gripper (9). The gripper (9) is coupled with a piston rod (74) of the second cylinder for opening and closing two introducing arms (92, 93) wherein at least one of the arms is rotatably seated.

Abstract: A device for handling wound bobbins which are wound on a spinning machine includes an attending device which is moveable along the spinning machine from one wound bobbin to another. A tending device includes a lever which carries a gripping mechanism, for swinging the gripping mechanism toward and away from a wound bobbin. The gripping mechanism has gripping arms which can be spread for receiving a wound bobbin and then brought together for grasping a wound bobbin. The gripping mechanism can then rotate the arms through 180.degree. and the lever can move the mechanism over a conveyor to deposit the wound bobbin onto the conveyor in the same orientation, whether the bobbin was removed from the spinning machine from one side or from an opposite side.

Abstract: A non-circular sliver container (1) is used for transporting sliver (2) to a spinning machine having a support table (3) fixed to one of its rounded ends at its upper edge. A groove (31) for receiving a reinforced introducing point (4) of the sliver (2) is provided. A recess (32) is provided in the groove (31) for allowing the point (4) of the sliver (2) to be gripped and inserted int a spinning machine.

Abstract: A healdframe (heddle frame) for producing a shed of warp threads, in particular in non-orthodox weaving machines which operate at high frequencies. The healdframe includes a heald rod (1) which has a hollow area (9). Flat protrusions (8) of the edge piece (2) are inserted into the hollow area (9) to secure the edge piece (2) to the heald rod (1). In the flat protrusion (8) of the edge piece (2) is created a cylindrical recess (7) in which a clamping segment (3) is pivotally or rotatably mounted. To secure the flat protrusion (8) in the heald rod (1), a pressure device such as a bolt (5) bears on a front part of the clamping segment (3) while a rear part of the clamping segment (3) bears on a rest (4) fixed in the heald rod (1).