Abstract: A method and apparatus for reestablishing the spinning operation at a spinning station of an open end spinning machine after a yarn break or after completion of winding of a full package. A traveling piecing unit responds to signals at a spinning station that indicate that a yarn break has occurred, that a package changing operation has occurred, or that winding of a package has been completed. Independently, a traveling package changing unit responds to a signal indicating that winding of a package has been completed at a spinning station and performs the package changing operation. When the piecing unit responds to a yarn break at a spinning station, it locates and withdraws the end of broken yarn from the package and positions it in a position where the unit then feeds the end to the spinning element to piece it with new yarn being spun and then releases it to the package, which resumes winding.

Abstract: A yarn traverse winding apparatus for a textile machine producing cross-wound bobbins includes a yarn traversing zone having reversing points. A traction mechanism transmission has an endless traction mechanism being diverted outside the traversing zone by guide rollers between a first belt run movable in a given traversing direction and a second belt run movable parallel to the first belt run in an opposite traversing direction. The belt runs have inner surfaces facing toward each other and outer surfaces facing away from each other while in the traversing zone. Yarn are drivers mutually spaced apart along the traction mechanism and a yarn guide element transfers yarn at the reversing points from a yarn driver on one of the belt runs to a yarn driver on the other of the belt runs.

Abstract: A yarn end unwinding apparatus includes a support base for supporting a yarn package in an upright disposition and a cooperating member. The cooperating member at least partially circumferentially surrounds the upright yarn package and includes a plurality of jet nozzles for directing jet streams of gas interiorly of the cooperating member. The jet streams of gas combine together to form a spiraling stream of gas which causes planetary motion of the package. The package moves in contacting relation along the inner surface of the cooperating member while simultaneously rotating about the package axis and this planetary motion of the package causes unwinding of the yarn end therefrom into position for subsequent package unwinding engagement. The support base preferably includes a pair of relatively movable semi-cylindrical portions.

Abstract: A housing is mounted on a column outwardly of a package conveyor at the rear of the machine. A pair of support arms are connected to gears of a gear assembly in the housing and extend at a downward inclination inwardly toward the machine. One of the arms is mounted above the other arm and is longer so that package supporting rods extending from the ends of the support arms will be substantially parallel in a generally horizontal plane for receipt of packages positioned thereon at the winding station. The housing is vertically movable to lower the support arms for deposit of the package onto the conveyor. The support arms pivot through arcs sufficiently long to clear the rods of the package upon raising of the housing and connected support arms into position for receipt of the next package.

Abstract: An apparatus for transporting cops and cop tubes includes a plurality of circular-disk-type carriers having two opposite sides. Spindle bearings each have a bearing portion penetrating and protruding beyond a respective one of the carriers toward one of the opposite sides of a respective one of the carriers. Spool spindles each are rotatably supported in and protrude beyond a respective one of the bearings toward another of the opposite sides of a respective one of the carriers for carrying a cop or a tube. The carriers have substantially planar lower surfaces each surrounding a respective one of the protruding bearing portions. A transport apparatus movable in a given transport direction has a surface operatively connected to one of the opposite sides of each of the carriers. Another of the opposite sides of each of the carriers is slidingly guided in a guide rail.

Abstract: A yarn traverse-winding apparatus of a textile machine producing cross-wound bobbins has a given traversing width and an endless yarn traversing belt. The belt has a belt body, yarn drivers spaced apart along the belt body, and inlays spaced apart within the belt body at intervals smaller than the given traversing width. The inlays are individually detectable by a sensor aimed at the yarn traversing belt.

Abstract: A method and apparatus for producing an end winding on a bobbin on which yarn has been wound. The bobbin is wound in an unwinding direction while the trailing yarn end is engaged and a length of yarn is unwound from the bobbin by suction. The yarn is released from the suction once a length of yarn has been unwound from the bobbin, the released unwound yarn falls onto a yarn support member to be supported at a location at substantially the level of the upper end of the bobbin. The bobbin is then further rotated in the unwinding direction to wind the unwound yarn length into an end winding on the upper end of the bobbin. The yarn support member includes a pair of oppositely sloping transverse surfaces spaced lengthwise of the yarn from one another to define a receiving slot therebetween and a yarn guiding eye is disposed beneath and in communication with the receiving slot for supporting the unwound yarn length during winding of the end winding.

Abstract: An assembly for the orderly and sequentially timed transport of bobbins includes a bobbin producing machine, at least one conveyor belt with a given load capacity and bobbin carrying capacity downstream of the bobbin producing machine in bobbin travel direction, a switching device for the conveyor belt, a controllable individual bobbin retaining device downstream of the conveyor belt including a bobbin retaining element, a bobbin transporter downstream of the bobbin retaining device with a load capacity and bobbin carrying capacity being smaller than the given capacities, the bobbin transporter including receiving elements for individual bobbins, and a device for operating the bobbin transporter in step with the conveyor belt, such as in the form of a timing device of the bobbin transporter and/or a sensor controlling the switching device of the conveyor belt.

Abstract: A machine for laterally displacing a track comprises at least one vertically adjustable tamping head having reciprocable vibratory tools for tamping ballast under the ties; a compact operating unit comprising a common carrier frame, a vertically and laterally adjustable device for lifting and laterally displacing the track mounted on the common carrier frame and including rail engaging roller tools, and a vertically and longitudinally adjustable device for orienting obliquely positioned ties to assume an orientation extending substantially perpendicularly to the track in the common plane, the tie orienting device being mounted on the common carrier frame and including a tie engaging tool; and power-actuated drives linking the carrier frame of the operating unit to the machine frame for vertically and laterally adjusting the carrier frame.

Abstract: A sliver opening apparatus for separating sliver into individual fibers for feeding of the individual fibers to the rotor of an open end spinning machine includes a rotating opening roller having a hollow interior and perforations from its exterior to its interior and air flow control elements disposed in the hollow interior of the opening roller. The air flow control elements define an opening located generally adjacent the sliver intake opening and an interior hollow chamber extending from the opening, the chamber being relatively large and the opening being relatively small. When the opening roller rotates, the air flow control elements cause the fibers from the incoming sliver to project toward the opening roller for optimum separation and combing by the teeth of the opening roller.

Abstract: A machine producing cross-wound bobbins or cheeses has a drum winding a yarn travelling in a given yarn travel direction on a cheese over a given traverse winding width with reversal points. A traverse winding apparatus includes a traction mechanism transmission having an endless traction mechanism. The traction mechanism is guided over rollers defining first and second traction mechanism segments movable in opposite directions at the same speed. The traction mechanism includes yarn entrainers spaced apart by at least substantially twice the given traverse winding width. First, second and at least one further yarn guide are in alternation with the traction mechanism segments as seen in the given yarn travel direction for supporting the yarn during traverse winding and for transferring the yarn between the yarn entrainers at the reversal points. Each of the yarn guides has a concave yarn guide contour with decreasing depth as seen in the given yarn travel direction to be contacted by the travelling yarn.

Abstract: A cleaning device for removing debris from the fiber collection groove of an open end spinning rotor utilizes a holder having a rounded end portion and a scraper component having a tubular foot portion mounted thereabout for pivotal movement with respect thereto. A leaf spring attached to the holder retains the scraper component in attachment with the holder and is selectively disengagable for removal and replacement of the scaper component and end portion of the scraper component is bent oppositely to the direction of rotation of the rotor for engagement in the rotor groove to break up and scrape out accumulated debris deposits therein.

Abstract: A method and apparatus for locating and loosening a reserve yarn winding on a textile spinning cop wherein the cop is rotated about its axis while a reserve yarn locating implement with a hook having a reversely-directed rounded tip is placed against the cop periphery with the tip facing opposite the direction of cop rotation to catch the reserve yarn winding within the hook and, thereafter, the implement is withdrawn tangentially from the cop to draw with it the reserve yarn winding until the winding comes loose from the cop or breaks.

Abstract: An apparatus and method for determining characteristics of staple fiber yarn by measuring the change in the yarn diameter after twisting or untwisting of the yarn. The yarn thickness of a length of yarn is measured during a first measuring process and subsequently, by a second measuring process after the twist is released. The two series of values of yarn thickness or diameter can then be compared with one another to determine certain characteristics of the sampled yarn.

Abstract: A method and apparatus for reestablishing the spinning operation of an open-end spinning machine following completion of spinning of a full package. The apparatus uses a traveling service unit having a device for forming a yarn reserve on a projecting end of a full package, a device for removing the full package with the yarn reserve thereon, a device for placing an empty tube in position for winding, a device for preparing an end of auxiliary yarn for restart feeding to the spinning element, a device for feeding the end of auxiliary yarn to the spinning element to restart spinning and withdrawing restarted yarn from the spinning element, and a device for engaging the restarted yarn on the empty tube to reestablish the spinning operation. The forming of the yarn reserve is performed while the end of auxiliary yarn is being prepared for restarting of spinning. The package is removed while the auxiliary yarn end is being fed to the spin box for restarting of spinning.

Abstract: A cheese or cross-wound bobbin producing machine has winding stations with creels. An assembly includes a tube magazine and an apparatus disposed on a movable service carriage for removing a tube from the tube magazine and transferring the tube to a creel. The apparatus includes a feeder having individual fingers being mutually spaced apart along the longitudinal axis of the tube. The individual fingers encompass the tube therebetween, move transversely to the longitudinal axis of the tube, and move between the tube magazine and the creel.

Abstract: A support disk assembly for rotatably mounting alongside a like support disk assembly as a bearing for rotatably supporting a shaft, such as the rotor shaft of an open end spinning machine. The disk assembly includes a pair of disk members each with a respective clamping flange selectively attachable and detachable from one another for grippingly retaining a tread member between the clamping flanges in operation while permitting easy removal and replacement of the tread member when worn by disassembly of the disk members.

Abstract: A winding machine having a transporting device for directly supplying to the winding machine bobbins or spun coils from a spinning machine, and for returning ejected tube sleeves to the spinning machine, includes a device for comparing and adjusting a flow of the tube sleeves returned from the winding machine to a requirement for tube sleeves by the spinning machine, the transporting device being connected with a device for holding back ejected tube sleeves which are at least partly wound.

Abstract: A device and method for temporarily maintaining a voltage level in a control circuit for auxiliary devices in a textile spinning machine, winding machine or the like wherein the control circuit is connected to an intermediate direct current circuit that is in series between a line voltage and the drive motors of the machine. The method includes reversibly supplying current from the intermediate circuit to the motors and inversely supplying current generated by the residual inertial energy of the motors to the intermediate circuit. The supplying of reversible current is controlled in response to a drop in line voltage to maintain the voltage level of the intermediate circuit and therefore of the control circuit supplying auxiliary devices. The controlling includes sensing a drop in line voltage and generating and transmitting control signals to reversibly supply current.

Abstract: In a guide roller assembly such as utilized for supporting a reciprocating yarn guide rod in a textile winding machine, the guide roller assembly having an outer shell rotatably supported on a carrier member by an interposed ball bearing assembly, problems of internal contamination of the guide roller assembly are avoided by provision of a plurality of annular projecting walls on one or both of the outer shell and the carrier member to define narrow annular spacings between the outer shell and the carrier member at the annular walls and annular air chambers in radial series between the walls. The narrow annular spacings are preferably of a maximum dimension in the range of a few tenths of a millimeter. Debris entering the interior of the guide roller assembly tends to be propelled radially outwardly and accumulates at the annular spacings to resist entry of further debris.