Abstract: In a method for threading yarns of two supply bobbins positioned coaxially one atop the other in a two-for-one twisting spindle through at two-part hollow spindle axle and a yarn guide channel of a yarn storage disk with a compressed-air operated injection threading device, a first supply bobbin is inserted into a two-for-one twisting spindle. A free yarn end of a second supply bobbin is threaded from above through a yarn guide tube of the second supply bobbin. The free yarn end of the second supply bobbin and the free yarn end of the first supply bobbin are combined and guided into an inlet of a yarn guide tube of the first supply bobbin. The compressed-air operated threading device is actuated and the second supply bobbin is then inserted into the two-for-one twisting spindle on top of the first supply bobbin.

Abstract: A device for stopping a spindle of a textile machine driven by a drive belt has a roller for removing the drive belt from contact with the spindle whorl of the spindle. The roller is movable from a rest position, in which the roller is disengaged from the drive belt, into an engaged position in which the roller engages the drive belt and moves the drive belt away from the spindle whorl. A brake device for braking the spindle whorl is provided. A support member on which the roller rests in its rest position so as to be vibration-dampened is connected to the support of the textile machine.

Abstract: A textile machine has a machine frame with a first and a second end. Spindles are connected to the machine frame in two parallel rows extending in the longitudinal direction. A first tangential drive belt arrangement for driving the spindles of the first row includes a first tangential drive belt and two first shafts positioned at the first and second ends and having a first pulley connected thereto. The first tangential drive belt extends between the first and second ends and is guided about the first pulleys. A second tangential drive belt arrangement for driving the spindles of the second row includes a second tangential drive belt and two second shafts, positioned at the first and second ends and having a second pulley connected thereto. The second tangential drive belt extends between the first and second ends and is guided about the second pulleys. Two drive motors are positioned at the first and second ends.

Abstract: A twisting spindle, such as a two-for-one twisting spindle, has a spindle rotor and a spool carrier with a hollow hub mounted on the spindle rotor. A yarn brake positioned within the hollow hub has a brake cartridge positioned vertically in the cylindrical housing. It includes two brake rings positioned at opposite ends of the brake cartridge. A first brake ring is axially displaceable for adjusting a braking force. The yarn brake includes an adjusting sleeve axially displaceable and rotationally fixed in the cylindrical housing. The lower end of the adjusting sleeve has a threaded portion extending axially into the area beneath the spool carrier. A transmission member including a radial actuating arm threaded onto the threaded portion of the adjusting sleeve so as to be rotatable but axially fixed. The actuating arm has a first permanent magnet located at a radially outer end of the actuating arm and positioned within an area delimited by the yarn balloon closely adjacent thereto.

Abstract: A method for manufacturing a twisted yarn includes the step of removing two rovings from two separate supplies and passing each roving through a separate drawing device. From each roving a separate spun yarn is produced by ring-spinning. Each spun yarn is collected in the form of a bobbin on a yarn carrier of separate hollow spindles, wherein the separate hollow spindles are positioned atop one another. With formation of a yarn balloon the spun yarn is withdrawn from the bobbins and guided through the hollow spindle axle of the respective hollow spindle. The spun yarn withdrawn from the upper one of the hollow spindles is guided through the hollow spindle axle of the lower one of the hollow spindles. Both spun yarns are then guided together to a winding device positioned below the lower one of the hollow spindles. The hollow spindles are rotated as a function of the winding speed of the winding device such that a twist of the spun fibers is at least partially canceled.

Abstract: In a method for manufacturing a twisted yarn a spindle rotor is positioned in a stationary cylinder housing. At least two spinning devices are supported in a receiving chamber of the spindle rotor such that the spinning devices are located adjacent to one another and symmetrical to the central axis of the spindle rotor. A vacuum is generated within the receiving chamber. Dissolved fiber material is supplied from a fiber supply device to the hollow spindle axle of the spindle rotor. The individual fiber material is fed by the vacuum within the receiving chamber via the hollow spindle axle 6 of the spindle rotor 7 and via feed channels, connecting the hollow spindle axle to the spinning rotors, to the spinning devices. From the dissolved fiber materials spun yarns are spun in each one of the spinning devices. The spun yarns are gathered as a twisted yarn at a centering point positioned on the extension of the central axis of the spindle rotor. The twisted yarn is wound onto a spool.

Abstract: In a method for manufacturing a twisted yarn by an integrated spinning-twisting process a vacuum is generated within the spindle rotor. Individual staple fibers are fed by vacuum to at least two rotor spinning devices positioned within the spindle rotor in which individual spun yarns are spun from the individual staple fibers. The individual spun yarns are gathered and guided in a first direction through the spindle rotor in order to subject the individual spun yarns to a first twist. The twisted yarn is guided in a second direction counter to the first direction to a centering element positioned above the rotor spinning devices whereby the twisted yarn forms a rotating yarn balloon about the spindle rotor. The twisted yarn is then wound onto a bobbin.

Abstract: In a method for joining a thread a spindle rotor with hollow spindle shaft is rotatably supported on a machine frame. A radially outwardly extending yarn guide channel is connected to the hollow spindle shaft. Two spinning devices with upwardly open spinning rotors are supported above the spindle rotor symmetrical to the central axis of the spindle rotor. A centering point is positioned on an extension of the central axis of the spindle rotor. A spun yarn is spun in each spinning device from dissolved fiber material and led upwardly away from the spinning rotors, reversed in their direction of movement by 180.degree., and introduced into the hollow spindle axle. The spun yarns form a yarn balloon between the yarn guide channel and the centering point, and twisted yarn is removed from the centering point. The dissolved fiber material is fed to the spinning devices through the yarn balloon.

Abstract: A device for producing a twisted yarn has a spindle rotor with a hollow spindle axle connected to a vacuum source and also has a vacuum chamber connected to the hollow spindle axle. A fiber-dissolving device for producing individual staple fibers is provided. At least two spinning rotors are positioned in the vacuum chamber for spinning spun yarns from the individual staple fibers. A centering device is positioned above the spinning rotors on the axis of the hollow spindle axle. The spindle rotor has an annular channel for receiving the individual staple fibers from the fiber-dissolving device. The spindle rotor has supply channels connected between the annular channel and the spinning rotors for supplying the individual staple fibers from the annular channel to the spinning rotors. The spindle rotor has spun yarn removal channels for removing the spun yarns from the spinning rotors and for guiding the spun yarns to the centering device.

Abstract: A device for change-over switching of electric motors has a housing and two safety disconnecting switch systems positioned adjacently to one another in the housing. A cover is slidably connected to the housing so as to cover one of the safety disconnecting switch systems respectively. A fuse holder with fuses is detachably connected to the housing. Each one of the safety disconnecting switch systems has receiving elements for receiving the fuses. The safety disconnecting switch systems are electrically connected to one another such that upon insertion of the fuses into the receiving elements of one of safety disconnecting switch systems the electric motors rotate in one rotational direction and that upon insertion of the fuses into the receiving elements of the other one of the safety disconnecting switch systems the electric motors rotate in the other rotational direction.

Abstract: A yarn brake has a tubular brake housing with an upper and a lower end. A lower brake ring is connected to the lower end of the brake housing. A brake ring carrier is positioned in the housing at a distance above the lower brake ring and has a central axis about which it is rotatable. The brake ring carrier is axially slidable within the brake housing. A spring is positioned in the brake housing between the upper end and the brake ring carrier for biasing the brake ring carrier in a downward direction. An upper brake ring is connected to the brake ring carrier so as to face the lower brake ring. A brake cartridge rests between the upper and the lower brake rings. An abutment is connected to the brake housing and extends radially into the brake housing. The brake ring carrier has a plurality of support shoulders distributed over the periphery of the brake ring whereby these support shoulders are axially spaced relative to one another.

Abstract: In a method and device for manufacturing a twisted yarn a spindle rotor having a hollow spindle axle with inlet and outlet and a yarn guide channel extending radially outwardly from the outlet is provided. The yarn exiting the yarn guide channel forms a yarn balloon. A stream of dissolved fiber material is fed axially through the spindle rotor into the space delimited by the yarn balloon and is divided into two partial streams. Each partial stream is guided first radially outwardly, then upwardly substantially parallel to the hollow spindle axle to a predetermined level, and subsequently radially inwardly to a respective spinning device arranged within the space delimited by the yarn balloon. A fiber is spun in each of the spinning devices, withdrawn, and guided axially downwardly. The fibers together are fed into the inlet of the hollow spindle axle to form a yarn. The yarn is guided through the hollow spindle axle and the yarn guide channel from where it exits and forms the yarn balloon.

Abstract: In a method of manufacturing a twisted yarn a rotor is rotatably supported on a machine frame. A yarn guide channel extends radially within the rotor over at least a portion of its diameter. A centering eye for the twisted yarn is positioned on the extension of the rotor axis. A yarn guide tube is arranged so as to guide a yarn exiting from the yarn guide channel to the centering eye. A spinning device is rotatably supported on the rotor eccentrically relative to the rotor axis. A fiber strand is dissolved into dissolved fiber material and fed axially through the rotor and upwardly toward the spinning device where at least two spun fibers are produced. The spun fibers are downwardly guided toward the yarn guide channel so as to form a plied yarn. Along this path the spun fibers are subjected to a first twist to form a once twisted yarn by the rotation of the spinning device relative to the rotor.

Abstract: A two-for-one twisting spindle has a protective pot with an upper edge and a bobbin carrier positioned in the protective pot for receiving two bobbins to be placed atop one another. A thread inlet tube extends axially through the bobbin carrier for receiving a first and a second thread withdrawn overhead from the bobbins. A thread guide ring is rotatable about the axis of the spindle. The thread guide ring has an eye for guiding one of the first and second threads withdrawn from the bobbins to the thread inlet tube, wherein the other of the first and second threads is guided about the periphery of the thread guide ring. A bristle ring is connected to the upper edge of the protective pot, the bristle ring having radially inwardly oriented, elastic bristles along which bristles the threads pass before entering the thread inlet tube.

Abstract: A device for adjusting capsule thread brakes in twisting machines having inside the twisting spindle a capsule thread brake has a brake ring disposed on a brake ring support which may be moved against a spring force. On the brake ring support a ring piston is arranged, which is guided in a ring cylinder connected to a compressed air supply line. A first toothed segment with downwardly directed teeth is arranged on the periphery of the brake ring support, and a second toothed segment with upwardly directed teeth is located opposite the first toothed segment. A support stop engages the slots formed between the teeth of the toothed segments during displacement of the brake ring support.

Abstract: In a method and apparatus for manufacturing a yarn from fiber material at least two spinning devices arranged adjacent to one another are provided. Fiber material is dissolved and fed to the at least two spinning devices. Each spinning device generates an individual spun fiber. The individual spun fibers are combined at the inlet opening of a hollow spindle axis to form a yarn. The yarn undergoes a two-for-one twisting operation by being passed in a first yarn feeding direction through the hollow spindle axis to an outlet opening of the hollow spindle axis, then radially guided from the outlet opening, and guided in a second yarn feeding direction counter to the first yarn feeding direction to form a yarn balloon rotating in a direction of rotation about the at least two spinning devices. A centering element is arranged on an axis extending along the hollow spindle axle so as to be spaced from the inlet opening of the hollow spindle axle.

Abstract: A multi-station textile machine, especially a double twisting machine or cabling machine, has spool containers arranged adjacent to one another in rows for receiving feed spools. A guide rail of a continuously or intermittently driven endless conveyor extends about the periphery of the machine frame in close contact therewith and has spool holders for conveying the feed spools. The lowermost position of the feed spools conveyed by the spool holders defines a horizontal plane which is substantially at the same level as the plane defined by the upper side of the spool containers. The spool holders are spaced apart from one another by a distance which is three to eight times the distance between neighboring spool containers.

Abstract: A spindle for manufacturing a yarn has a spindle body for receiving a fiber supply bobbin from which a fiber is removed radially outwardly to form a fiber balloon and guided to a centering point above the spindle body. A spindle rotor for rotating the spindle body has a central axis. A supply device for introducing a flowable medium into the space limited by the fiber balloon is provided. The supply device has an inlet line with an outlet opening. The inlet line has a section adjacent to the outlet opening extending at least directly upstream of the outlet opening coaxially or parallel to the central axis. At least a portion of the section is rotatable about the central axis and has a fiber guide tube comprising a first end that extends coaxially from the portion and a second end that extends radially from this portion.

Abstract: A spindle for manufacturing yarns has a spindle rotor with a central axis. A fiber guide duct extends substantially from the central axis radially outwardly for guiding a first fiber radially outwardly. The first fiber, after exiting the fiber guide duct, is guided under formation of a fiber balloon to a centering point that is located on an extension of the central axis of the spindle rotor. At least one inlet line that extends substantially radially toward the fiber balloon is provided for introducing a flowable medium into a space limited by the fiber balloon.

Abstract: A textile yarn processing machine has a plurality of spindle assemblies for processing of yarn. Each spindle assembly includes mechanisms for forming a balloon of yarn which rotates around a spindle assembly central axis as the yarn travels through the spindle assembly during processing and a balloon limiter device surrounding the rotating balloon of yarn and having a generally cylindrical inside surface for frictional contact with the rotating balloon of yarn to restrict the size thereof. Devices are provided which reduce frictional contact between the rotating balloon of yarn and the inside surface of the balloon limiter so as to avoid the necessity of the use of lubricators on the yarn.