Abstract: Packages, particularly cross-wound packages are produced directly at a ring spinning frame. In a method and apparatus for making packages a rewinding device is provided for a group of spinning stations. The rewinding device comprises a fixed winding station and a gripping device movable along the group of spinning stations. The rewinding device is able to perform all the manipulations for starting up a spinning process with empty yarn carriers. It is also possible to change the full yarn carriers and mount the empty yarn carriers on a spinning frame, remove thread breaks and carry out spinning following a batch change. Spinning of the individual yarn carriers takes place individually, so that when replacing one yarn carrier, the other spinning stations continue to operate. This leads to a high production rate of the ring spinning frame and simultaneously reduces costs for rewinding compared with known systems.

Abstract: When using several reeling stations, a single drive shaft is provided for driving the drive rollers and this is driven by a single driving station. For each reeling station, a drive branch branches off from the drive shaft and has an infinitely variable gear for driving the thread laying devices. The thread supplied by a textile machine is wound in accordance with a preprogrammed winding through a regulator associated with the reeling station. The driving station can be driven by a motor or by the delivery mechanism of the textile machine with a synchronous speed or with a speed having a fixed transmission ratio, a number of reeling stations corresponding to the number of delivery mechanisms being simultaneously drivable.

Abstract: Two parallel-inserted thread ends are introduced into a thread end preparation device via an air gap located above a preparation tube. The thread ends are cut by shears and thereafter an air flow produced in an air intake tube blows the thread ends into the preparation tube. The prepared thread ends are brought by retracting levers into the vicinity of the splicing chamber. The splicing chamber is provided with a cover and splicing is carried out by supplying a compressed air flow.Two thread ends are spliced together after cutting by exposing the two ends to a single air flow to prepare the ends for splicing by untwisting the ends and removing loose thread parts therefrom. The cut and prepared ends are disposed in a splicing chamber and compressed air is passed through the chamber to splice the ends together.

Abstract: Prior to the actual splicing process, a preparation process is carried out in a preparation apparatus. The apparatus comprises a preparation tube having one or more circumferentially arranged air jet nozzles. The axis of each nozzle is inclined to the axis of the preparation tube and has a mouthpiece at the inlet end. The yarn end to be prepared is introduced into the preparation tube, where it is separated by the air jet emanating from the mouth piece and is spread apart.

Abstract: A winding station in a traverse winding frame for winding thread on a package comprises a belt drive for rotating a cheese or bobbin via a driving roller and a grooved drum for thread laying. The grooved drum drive has a continuously variable gear, whose speed is continuously variable by an adjusting linkage. The speed of the cheese and the grooved drum is measured by two tachometers and supplied as a corresponding signal to a computer, in which the actual value calculated from the two signals is compared with a desired value stored in the computer and a correction signal is then fed to a control element for adjusting the adjusting linkage. Thus, the cheese can be wound with a thread winding, which combines the advantages of a random winding with a constant pitch angle and a precision winding with a substantially constant turns ratio during partial windings, without suffering from their disadvantages.

Abstract: A system for preparing and splicing two yarn ends has preparation nozzles in a turbulence chamber adjacent the end faces of a casing. The preparation nozzles improve the quality of the splicing by thinning the yarn ends. Compressed air or a partial vacuum can operate the preparation nozzles. With preparation of the yarn ends in the turbulence chamber for the splicing, the expenditure for a preparation mechanism remote from the splicing casing is eliminated.

Abstract: A splicing head has a turbulence chamber which is circular in cross section. The turbulence chamber is cylindrical or has a cylindrical center portion and conical outwardly enlarging end portion, and an insertion slot. Air inlet passages open into the cylindrical portion along tangents and in opposite directions so that air under pressure through the passages creates circumferential flow in opposite directions. Air is supplied alternately to the two passages, creating oppositely alternating air currents in the chamber, thereby twisting and joining thread ends inserted through the slot into the chamber without having overtwisted or untwisted portions.

Abstract: A splicer includes a splicing head into which the two yarn ends are introduced through an inserting slot into a turbulence chamber. The turbulence chamber is formed from two juxtaposed frustum-shaped chambers interconnected by a connecting slot. A pressure medium is tangentially introduced through one opening into each chamber for forming the splice and the flow is guided in a lemiscate-like path through the two chambers. As a result of the two oppositely directed pressure medium flows, the two yarn ends are axially centrally fixed, while the two pressure medium flows escape in the direction of the larger chamber ends and thereby subject the yarn ends to a turbulent and twisting actions, so that a joint is formed having no projecting yarn ends and no weak points due to the reduced yarn twist.

Abstract: High-speed spooling machines for yarn or thread are subject to the difficulty that, if the yarn or thread should break between a yarn cleaning, that is, size sensing and cutting apparatus and the takeup spool, stray remnant filamentary pieces may occur due to operation of the cutter apparatus since the thread size sensing apparatus may provide an erroneous "cut" signal upon absence of any thread in the sensing field. To prevent such operation, a thread sensing element is interposed in the path of the thread being spooled which, upon break of thread, will provide a "no tension" signal which will be below a predetermined threshold level. This signal is then used to inhibit operation of the cutter, regardless of the output of the thread size sensing element.

Abstract: A suction element (1) has a slit-like suction nozzle portion (20) extending transversely over a cone from which a loose thread end is to be sucked off. The element includes an airflow chamber 22, located between the suction nozzle portion and a vacuum fitting (8), in which two draw-off rollers (2, 3) are positioned, freely rotatable and driven by the air stream flowing from the nozzle opening through the chamber into the suction fitting. The soft elastic force of the suction airflow is transferred to the rollers and then to the thread or yarn being picked or plucked off so that thread breakage upon sudden changes in pull-off resistance are effectively prevented.

Abstract: There is disclosed a nozzle having a pair of rollers arranged at the end over a suction slot. A smooth contact roller of the pair is arranged toward the outside for contacting the surface of a wound thread member rotating against it. The other clamping roller is rotated by contact with the contact roller and spaced back from the wound thread member. The contact roller is movably mounted so that the contact pressure forces it into rolling contact also with the clamping roller. The clamping roller is a multiple worm roller, by which along the contact line of the two rollers there are a series of clamping points which tug at the thread as it is pulled into the nozzle by the suction through spaces separating the clamping points along the length of the rollers. The contact roller may be tapered to a smaller diameter toward the middle, with the clamping roller being correspondingly tapered to a larger diameter toward the middle.

Abstract: The device includes a fixed separating member with two mutually parallel thread guide plates spaced from one another and a cutting body movable toward the fixed member and operable by a textile machine. The cutting body includes two clamping shanks, which in the course of a cutting motion slide against the outer surfaces of the guide plates with a predetermined contact pressure in order to tension a thread guided crosswise over the guide plates. The cutting body also includes a blade so arranged between and parallel to the clamping shanks that in the direction of the cutting motion its cutting edge lies behind the clamping edges of the clamping shanks.

Abstract: To permit single-basket conveyor transport of textile cops from a supply bin holding a number of cops, without damage to the thread wound on the cops upon removal of an individual cop and introduction into the conveyor, the supply bin is constructed such that at least a portion of the bottom thereof is inclined forwardly towards a removal opening leading to the conveyor, and includes a movable base plate which is mounted for movement between a feed position in which the base plate is inclined towards the opening and a re-supply position in which the movable portion is inclined upwardly and away from the removal opening; an ejector is provided having a movable ejector element and occupying a space at least approximately the size of the geometric outline of a cop, the ejector element pushing against the cop and pushing the selected cop for removal through the removal opening against a spring-loaded flap, the ejector element, due to its size, blocking contact between the cop being ejected and a next adjacent cop

Abstract: To permit isolation of individual spooling units from a multiple-unit machine, in case of necessity of repair or the like, a common drive shaft extends through the machine which has individual clutch units thereon, controlling rotation of respective gears which, in turn, transmit power to the individual spooling units, that is, to their traverse as well as to their drive elements. The drive elements, or at least portions thereof, form single replaceable units, preferably secured to the cover of an oil pan providing lubrication for the mechanism of the driving and spooling units, the clutches being operated by external engagement, for example by tightening down a pin securing the cover in place on the machine.

Abstract: A housing structure is formed with a suction connection to which pneumatic suction is applied, the suction connection internally terminating in a nozzle which surrounds a rotatable centering cone. The support for the spinning cop, externally of the nozzle, is ring-shaped. A thread drawn out by suction through the nozzle past the ring-shaped support can be clamped against the lower surface thereof upon axial movement of a clamping element for a first distance, complete movement of the clamping element then clamping a further portion of the drawn-off thread against a second clamping surface so that the thread will be taut, and placed in interfering position with a knife edge which cuts the thread at a predetermined point to ensure severing of the drawn-off thread. To provide for a long foot lap, the cop can be lifted repeatedly off the support surface after the thread has been first clamped so that thread is unwound therefrom.

Abstract: A group of grippers, for example three, are located around a centering cone which is arranged to penetrate into and center a spinning cop. The grippers have jaws which, at the inner side, have a gripping engagement zone, for example, formed by a resilient, such as plastic, insert. Upon axial movement of a spinning cop to engage the centering cone, the grippers are cranked upwardly against the circumference of a holding bell, to pivot about the edge of the spinning cop and engage the end of the spinning cop by the engagement surfaces of the grippers, so that that portion of the spinning cop is gripped which is normally free of thread, or yarn thereon and damage to the yarn is avoided. The entire assembly is rotatively supported on a swing-arm to swing in one position to pick up the cone, move into another position for handling of yarn on the cop, for example, removing of a foot-lap, and to yet another position for delivery of the cop to the winding machine mechanism.

Abstract: To prevent undesired winding patterns on a yarn package being spooled, in which the package is in engagement with a drive drum and a yarn traverse guide is provided to traverse the yarn, a drive is in engagement with the drive drum which includes a drive belt having a length substantially in excess of its stretched length and a belt length tightening or compensating roller is in engagement with the extra long drive belt at the driving run of the belt, the compensating roller being moved cyclically, for example under control of a cam, to provide cyclical acceleration and retardation to the driven element connected to the drive belt, for example the drive drum, or the traverse drum.

Abstract: To prevent splatter of oil from a traverse spiral drum upon rapid rotation of the drum in high-speed spooling machines, an oil retention plate is provided extending parallel to the axis of the drum and having an oil wiping edge engaging the surface thereof, the drum being located in advance -- with respect to rotation of the drum -- of the position of the slider block engaged in a spiral groove of the rotating drum to provide for the traverse movement, the plate being of sufficient width to block spray of oil centrifugally thrown off the surface of the drum upon rotation thereof, a bead of oil being formed at the engagement edge of the drum and the plate, the bead penetrating the spiral groove in the drum to provide, due to the rotation of the drum, lubrication of the lateral surfaces of the groove and hence lubrication for the slider block while preventing contact of lubricating oil with the yarn being spooled.

Abstract: To determine if a thread pick-up device, to pick up broken or run-out thread in thread spooling machines, has located therein only a single strand of thread, the thread is passed through a test gap which provides pulses each time the test gap senses that a discrete strand of thread is passed therethrough, the pulses being applied to a counter, the counter controlling operation of the device so that, if a ONE count is received, the thread has been properly picked up; if no count, or more than one count have been received, the thread pick-up operation is controlled, for example, by repeating the pick-up operation, or cutting the thread at the end of the pick-up operation, and repeating, to ensure presence of only a single thread in the pick-up device. Sensing of the thread becomes, therefore, independent of yarn size, thickness, or localized changes in diameter.

Abstract: To provide yarn cops to textile machines in predetermined, uniform alignment and orientation of the yarn cops, typically to supply yarn cops to spooling or spinning machines, the diameter of the core ends of the yarn cops is sensed and a difference signal obtained. This difference signal is stored, mechanically or electrically and, when a cop is required to be fed to the spinning machine, the stored difference signal is transferred to an orientation alignment apparatus, typically a pair of pins which retain the cop in horizontal position and, upon withdrawal of a selected one of the pins, permit the cop to drop into a delivery chute, selectively, with the selected end first, to deliver the cop in properly oriented alignment to the textile machine, that is, typically to the spooling or spinning machine.