Abstract: For an automated removal of a package and transport adapter with a hollow core, on which at least one empty winding tube or a winding tube holding a residual length of yarn is inserted, from a yarn processing station, in particular from the protective pot of a two-for-one twisting spindle, the present invention provides for an operating method and an apparatus, so as to obtain for a troublefree further transportation of the package and transport adapter a yarn length of a defined length from the yarn end extending to a not-fully unwound winding tube, which yarn length is inserted into the hollow shaft of the package or transport adapter.

Abstract: A bobbin sleeve for a setting bobbin, consisting of a cylinder jacket bounded on both sides by end flanges and consisting of rigid, more especially metallic material is characterized in that the cylinder jacket is provided with continuous apertures, so that the setting process and a subsequent dyeing process can be carried out on one and the same bobbin sleeve.

Abstract: A maintenance device is provided in a two-for-one twister textile yarn processing machine having a plurality of spindle assembly stations in side-by-side relationship along the length of the machine for processing of yarn at each station as the yarn is fed from yarn supply packages carried by an adapter device and mounted in the spindle assembly, and an overhead conveyor mechanism extending the length of the machine generally above the spindle assembly stations and including spaced-apart downwardly-directed suspension holders for releasably receiving and carrying adapter devices with full yarn supply packages thereon and adapter devices with substantially empty yarn supply packages thereon to and from respective spindle assembly stations.

Abstract: An apparatus for refilling a yarn wetting agent into a yarn wetting device of a yarn processing station of a textile machine, in particular a two-for-one twisting spindle, is characterized in that a filling station is either provided in the region of each yarn processing station of the textile machine or adapted to move to the yarn processing station, which is connected via a conduit with a storage tank of the wetting agent.

Abstract: In yarn processing stations, in which two yarns are withdrawn from feed yarn packages inserted on a package adapter, the problem arises that a residual yarn wind is left on the tube of a feed yarn package. To remove this residual yarn wind, the maintenance and servicing device of the present invention is provided witha rotatable, upward and downward movable gripper for the removal of the package adapter from the yarn processing station, at least one rotatably supported mandrel to receive the package adapter, a rotatably supported, upward and downward movable cutting device for severing a residual yarn wind left on a feed yarn tube, and a rotatably supported suction device for the removal of the cut residual yarn, so as to be able to perform, according to the method of the present invention, the cleaning of feed yarn tubes still carrying yarn remnants directly after their removal from the yarn processing station.

Abstract: A device for cleaning protective pots and, if need be, balloon limiters of two-for-one twisting spindles of a two-for-one twister, which comprises cleaning elements, preferably in the form of brush bars, which are arranged on a motor-driven, vertical shaft and preferably adjustable in radial direction, and which can be lowered into a protective pot and, if necessary, into a balloon limiter of a two-for-one twisting spindle, with a suction device for the removal of air laden with dust and dirt particles being associated to each cleaning device. This cleaning device can be a part of an automatic maintenance device.

Abstract: A yarn package transfer apparatus is provided which includes devices for removing hollow yarn package adapter devices from downwardly and generally vertically-extending package holders movably and serially-mounted on an overhead conveying system, for inserting such hollow adapter devices into the hollow tubes of a desired number of yarn packages positioned in a generally horizontal position in a package supply assembly, and for transferring such packages of yarn from the package supply assembly and mounting the hollow adapter devices and yarn packages carried thereby onto the vertically-extending package holders of the overhead conveying system for conveying of the yarn packages. The apparatus preferably includes devices for positioning the loose ends of the yarn from the yarn packages on the adapter device in desired positions during the transferring operation.

Abstract: A method and apparatus for transporting a wound hollow yarn package having a loose yarn end from a yarn processing machine and, preferably, between yarn processing machines, while maintaining the loose yarn end in defined and fixed positions. The yarn package is gripped in the yarn processing machine by inserting a hollow gripper device into one end of the hollow yarn package and the loose yarn end is pneumatically positioned in the hollow gripper device. The yarn package is removed from the yarn processing machine and placed on a hollow pin of a transporting mechanism by the gripper device and the loose yarn end is pneumatically removed from the gripper device and positioned in the hollow pin of the transporting mechanism. The gripper device is then removed and the yarn package is transported, preferably to a second yarn processing machine.

Abstract: Transport and holding device for thread packages, comprising an adapter insertable into the packages and an adapter carrier, characterized in that the carrier for the package adapter is provided with a mandrel insertable into the lower end of the package adapter, and a positioning element, so as to position the adapter in a certain angular position relative to the carrier.

Abstract: A method of automatically removing takeup packages of a two-sided textile machine, in particular a winding, spinning, or twisting machine with random doff by at least one automated handling device traveling along the longitudinal sides of the machine and of depositing the removed takeup packages on a conveyor belt common to both machine sides, which is arranged in the longitudinal center of the machine and adapted for a stepwise forward movement, and which is followed by a buffer zone. The automated handling device checks at each position of a due package doff and before delivering a takeup package to the conveyor belt, whether the belt is vacant at this position or already occupied by a takeup package. In the event of an occupancy, the automated handling device supplies to the conveyor belt drive a control signal, by which the conveyor belt is stepwise advanced until a vacant space on the conveyor belt arrives at this position.

Abstract: A two-for-one twisting machine, comprising twisting spindles each having a threading device arranged in the region of the spindle axis, through which a yarn is sucked in by the action of an injector and ejected by means of a compressed-air jet in upward direction through the space between the feed package pot and balloon limiter. A yarn catching ring placed on the upper annular gap of the space between the feed package pot and balloon limiter serves to catch and position the yarn, which ring has in its interior a closed annular channel with a cross section open toward the annular gap, and is connected, via a radially outward extending connecting end, with a source of underpressure. The underpressure permits the yarn to enter into the annular channel and advance to the connecting end, where it is finally positioned.

Abstract: A transport and handling system for multi-position textile machines, in particular twisting machines, comprising a first track system, the path of which extends along the longitudinal sides of the machines, and which accommodates at least one automated handling device to perform servicing operations, and further comprising a second track systems, the path of which extends likewise along the longitudinal sides of the machines, and along which transport devices travel, which are adapted to be combined to trains and to receive working materials and/or working means. The paths of the two track systems extend parallel to each other over at least a portion such that the automated handling device is adapted to both engage with the transport devices and move past same.

Abstract: A two-for-one twisting spindle, onto the feed bobbin carrier of which may be slipped concentrically at least two feed bobbins axially one above the other, from which bobbins the yarns are drawn off overhead and commonly enter the yarn inlet tube, onto which is slipped a braking device which has a slip-on member and a brake ring carried thereby, characterized in that the slip-on member is mounted on the yarn inlet tube by means of a bearing so as to be easily rotatable.

Abstract: An automated thread processing system is characterized by reducing thread package handling and labor requirements. The system includes a textile thread processing machine station having a plurality of spindle assemblies for processing thread and forming wound packages of thread. At least one additional station is also provided. A thread package transporting mechanism includes a stationary continuous rail passing through the thread processing machine station and to and through the additional station and back to the thread processing machine station. Thread package carrying devices are movably mounted on the rail and positioned for receiving the wound packages of thread doffed from the spindle assemblies of the thread processing machine station and then carrying the thread packages from the thread processing machine station to the additional station and releasing the thread packages at the additional station and then returning to the thread processing machine station.

Abstract: A spindle rotor is adapted (1) for use in a spindle of a textile thread processing machine, such as a two-for-one twister, in which the running thread being processed passes through an axially and radially extending thread passageway in the spindle and formed a rotating balloon around the spindle and includes means for supplying a flow of thread conditioning medium, fibrous material or other medium adapted to flow in a generally axial direction through the spindle and (2) to receive, guide and enhance the flow while performing the thread processing functions. The spindle rotor includes a hub member for rotatably mounting the spindle rotor in the machine spindle, a plurality of spaced-apart guide blades attached to the hub member and extending radially outwardly therefrom in a spoke-like manner for receiving the thread conditioning medium, and a radially extending thread passageway through the hub and one of the guide blades for receiving the running thread being processed.

Abstract: A method and apparatus for automatically adjusting the tensile force ratio between axially moving outer and inner threads of cabled yarn during manufacture of such yarn in a cabling machine in which the actual tensile force ratio is measured in the region of the thread guide eye of the cabling machine, such measured tensile force ratio is compared with a desired tensile force ratio and the thread guide eye of the cabling machine is axially adjusted to provide a desired height of the thread balloon in the yarn cabling machine to provide a desired outer and inner thread tensile force ratio. Suitable apparatus, preferably in the form of a hand held instrument is provided for automatically performing such adjustment of the tensile force ratio.

Abstract: A device for switching off and switching on the operation of a spindle of a textile twisting or spinning machine having a rumming thread is provided which includes the following elements. A pneumatic switching device is adapted to be operatively connected to a spindle stop mechanism of the textile machine for actuation and de-actuation thereof. A movable running thread sensor device is held in a first normal operating position by the running thread in the textile machine and moves to a second switching position upon breakage of the running thread. A movable breaking sensor device is adapted to be operatively connected to a spindle breaking mechanism of the textile machine for moving between a first position during normal operation of the spindle to a second position upon actuation of the spindle breaking mechanism after thread breakage.

Abstract: A bobbin holder is provided for holding one or more bobbins of thread of varying heights in superimposed positions and adapted for being loosely and removably inserted into a bobbin carrier of a textile machine. The bobbin holder includes an elongate tubular body for receiving one or more hollow bobbins of thread on the outside thereof along the axial length thereof, mechanisms for varying the length of the elongate body for accommodating bobbins of varying heights, and a radially-outwardly-projecting support carried on the lower end of the tubular body for supporting the bobbin or bobbins of thread on the tubular body. The elongate body preferably comprises at least two tubular portions connected together at respective ends thereof by the length varying mechanisms.

Abstract: A thread brake mechanism is provided which is adapted to be attached to a spindle assembly of a thread processing machine and which is characterized by a construction for use with two independent individual threads which may be fed into the spindle assembly at varying tensions and which applies respective braking forces to the individual threads depending upon the respective feeding tension thereof.

Abstract: A pre-take-up roller mechanism is provided for varying the tractive force and tension on running thread being wound by a take-up mechanism in a thread processing machine. The mechanism includes a variably driven rotating drive shaft carried by the machine, a thread pre-take-up roller rotatably mounted on the drive shaft for receiving the running thread on the surface thereof and for being driven by the running thread through adhesion, and an eddy current clutch or a combination eddy current and hysteresis clutch operatively connecting the drive shaft and the pre-take-up roller for varying the torque on the pre-take-up roller and thus the tractive force and tension on the running thread by varying the driven rotational speed of the drive shaft without affecting the constant winding speed of the running thread being wound by the take-up mechanism.