Abstract: A shaftless spinning rotor for an open-end spinning machine is adapted to operate as a rotor driven by a stator in an axial field motor supported thereon by a combined magnetic and gas bearing producing separate magnetic fields for guiding orientation of the rotational axis of the rotor and for driving rotation thereof which achieves smooth substantially non-oscillating operation with minimal heating in the region of the axis of rotation by interposing a barrier layer with nonmagnetic properties between respective means for conducting the magnetic flux of the driving and guiding magnetic fields for decoupling the magnetic fields. In particular, separate yokes are utilized for conducting the fluxes of the driving and guiding magnetic fields and permanent magnets are primarily used to generate the magnetic fields.

Abstract: An open-end rotor spinning machine is equipped with a service structure for the automatic correction of yarn breaks occurring in the course of the bobbin winding and for the automatic exchange of empty tubes for finished packages, wherein empty tubes are delivered to and finished packages are removed from the work stations via an endless transport device. The service structure has a package ejector for ejecting finished packages from the work stations, a tube gripper for retrieving an empty tube from the transport device, and a tube positioning device connected with the package ejector of the service structure to position an empty tube held by the tube gripper precisely into desired disposition relative to a respective work station to be supplied with an empty tube.

Abstract: An open end spinning machine with an associated service device having a supplementary yarn conveying device utilizing a delivery tube disposed on a delivery tube holder which can be pivoted into various work positions. A yarn guide plate is movably seated in the area of the delivery tube holder and has a yarn guide notch as well as a yarn placement slit and can be selectively controlled by means of a thrust cylinder. By pivoting the yarn guide plate, the yarn extending through the yarn guide notch is transferred to specially designed yarn catch devices of a tube supporting disk seated in a creel of a work station of the spinning machine. Subsequently, the grasped yarn slides automatically into the yarn placement slit which is disposed below the notch and, while being securely guided in the yarn placement slit, is wound as a reserve winding on the empty tube rotating in the creel.

Abstract: A device for searching for the yarn end on the conical windings of textile yarn cops increases the dependability of the detection of the position of the conical windings by providing a nozzle element in the yarn grasping mechanism for contacting the conical windings and whose position can be changed in relation to a sensor-controlled lifting mechanism. A sensor is arranged on the yarn grasping mechanism to detect a position change of the nozzle element relative to the lifting mechanism caused by contact of the nozzle element with the conical windings. The sensor is electrically connected with the drive of the lifting mechanism. The nozzle element, which advantageously is of a tubular bell-shaped configuration having a conical interior configuration, can be displaced coaxially to the longitudinal axis of the cop in an end of the yarn grasping mechanism which can be moved by the lifting mechanism. A marking, which can be easily recognized by the sensor, is placed on the displaceable nozzle element.

Abstract: Sliver is delivered from a drawing frame to an open-end spinning frame in sliver containing cans and, at a transfer location along the travel path of a servicing device for the spinning frame, sliver is removed from the cans in partial lots and transferred to a sliver transport location on the service device to be transported to a spinning station whose sliver supply has been exhausted, whereat the servicing device performs the transfer of the sliver lot to the spinning station as well as the introduction end the piecing-up of the sliver.

Abstract: A toy vehicle and track assembly includes an electrically operable vehicle for movement along an elongate flexible track of a predetermined length having flexible electrical conductors along the longitudinal extent thereof. The vehicle is configured for an actual direction of travel and an apparent direction of travel and includes an arrangement for maintaining the actual direction of travel coincident with the apparent direction of travel. Power is supplied to the vehicle through a hand-held controller wired to a power application device which clamps on the track. The track may be formed with one of several cross-sectional configurations providing additional surfaces for the placement of conductive electric strips which apply power to the vehicle and to optional auxiliary systems within the vehicle. A plurality of mounting tunnels are provided to allow the track to be erected in a number of predetermined circuit designs and, optionally, power may be applied to the track through one of the mounting tunnels.

Abstract: A sizing applicator with two pairs of rollers arranged in sequence with one another along the transport path of a yarn sheet can be converted, without changing the position of the pairs of rollers, between an operating mode as a pad-type sizing applicator and a squeezing-type sizing applicator. Each pair of rollers has a defined gap at a common tangent therebetween and each pair of rollers has one roller disposed at a lower elevation than the other roller of the pair. The two roller pairs are relatively arranged such that their respective common tangents intersect beneath the roller pairs approximately midway between the roller pairs.

Abstract: An apparatus for folding and stacking a multiplicity of individual sheets of material, particularly textile material, includes an upstanding frame with the outermost extent thereof defining a frame perimeter, an assembly mounted to the frame for feeding the textile sheet material through the folding apparatus in a predetermined travel direction along a predetermined travel path for sheet material folding. A folding assembly is disposed along the travel path for folding the sheet material with the folding assembly being disposed within the frame perimeter and an assembly for stacking the sheets is provided and is also disposed within the frame perimeter.

Abstract: A magnetic bearing is disclosed for an open-end spinning rotor having a shaft supported in a wedge-like gap formed between at least one pair of support rollers. The bearing comprises a housing for receiving the shaft, a magnet disposed in the housing to extend radially relative to the shaft, and a magnet disposed on and radially extending from the shaft axially adjacent and at a spacing from the magnet in the bearing housing. The magnets have respective poles of the same magnetic orientation disposed to face and thereby repel one another. According to the invention, a coupling connects the shaft and the magnet disposed on the shaft, the coupling being releasable in response to an axial force exerted on the shaft.

Abstract: An apparatus for blowing air at a spread-out length of textile fabric being transported onward can be reduced in its dimensions and at the same time made more favorable from an energy standpoint during operation if the blow-out nozzles are embodied as injector nozzles. The injector nozzles can be flexibly adapted, in terms of their distribution in three dimensions, to the width of the length of fabric.

Abstract: A method and apparatus for producing randomly variegated multiple strand yarn in twisting together two or more yarns at a plurality of yarn twisting stations. At each station a pneumatic twisting head is disposed in which randomly turbulent air currents are created in a chamber in the twisting head by compressed air flowing into the chamber from a manifold through bores in the twisting head, thereby randomly twisting together two or more yarns in the chamber. The yarns which have been twisted together are taken up over a plurality of traversing drums commonly mounted on a shaft which is driven by an alternating electric current motor controlled by a control device which operates to start and restart the motor on a predetermined cycle including a variation of the electrical input sufficient to result in randomly unpredictable inertia resistance of the traversing drums to rotational speed variation, thereby creating randomly unpredictable take-up of the yarns to produce non-uniform random twist in the yarns.

Abstract: A three-bar warp knitted fabric whose technical face has a pattern of coursewise and walewise arrayed pleated sections is produced on a three-bar warp knitting machine by knitting ground yarns on the machine's middle bar to provide a fabric base or ground, knitting pleat-forming yarns on the machine's top bar in extended walewise floats over selected groups of courses at the technical back of the fabric to cause the ground to gather into coursewise pleats at the technical face, and knitting tie-down yarns on the machine's bottom bar in an alternating in-out pattern to appear at the technical face only in selected spaced groups of wales wherein the tie-down yarns also float over the selected groups of courses to define the coursewise pleats into an array of discrete pleated sections.

Abstract: A humidifier system includes a spray apparatus in a housing which sprays a mist of water droplets onto a mist eliminator to intercept the mist of water droplets. The mist of droplets is captured in a liquid phase by the mist eliminator and is substantially completely converted into a vapor phase in the form of increased humidity in the air stream. A humidity sensor located downstream of the mist eliminator senses the humidity of the stream of air. A controller controls the quantity of water sprayed in response to the humidity sensed to maintain a predetermined humidity in the humidified stream of air. A second humidifier includes a heater which creates a region of intense heat to instantaneously evaporate water mist directed thereon in a stream of air. In a third embodiment, water and pressurized air are simultaneously injected into a region of intense heat.

Abstract: An apparatus for knitting about a traveling strand includes a rotatable base, an arrangement for supporting a yarn package rotatably mounted to the base for rotation independently of the rotation of the base, a strand conduit, an arrangement for moving a strand through the strand conduit and a knitting assembly disposed along the strand conduit for knitting yarn supplied from the yarn package about the traveling strand.

Abstract: A protective helmet for use by children is provided, with a top portion formed as a hollow dome, containing a plurality of ventilation openings. The top portion includes a stretch panel which extends from the top of the dome to a rim of the top portion. The protective helmet also includes a padded brim which is formed as a band mounted to and encircling an outer circumference of the top portion at the rim, and includes a stretch panel adjacent to the stretch panel of the top portion. The protective helmet further includes a first strap and a second strap mounted to the padded brim that are attachable to and detachable from each other. Each strap has an ear protection portion at the point of attachment to the padded brim that is configured to provide protection to the ears of the child, with a plurality of ventilation openings therein for the passage of air and sound.

Abstract: An apparatus for removing contaminants from raw cotton traveling in an airstream includes a drum which is rotatably driven and mounted to a frame with the drum having a plurality of openings through, and further includes an assembly for directing the raw cotton against the drum, a first suction assembly for drawing contaminants from the cotton which is retained on the cotton collecting surface in a cotton impingement zone, a second suction arrangement for drawing cleaned raw cotton away from the cotton collection surface and including a cotton retention zone wherein the second suction airstream is opposed to the first suction airstream and a cotton release zone wherein the second suction airstream is assisted by atmospheric air in removing clean cotton from the cotton collection surface of the rotatable drum and delivering it to a clean cotton reservoir.

Abstract: An athletic glove to be worn by baseball batters (as well as other participants in bat, club and racquet sports) promotes proper gripping disposition of the handle portion of a baseball bat by providing a spacing member integrally airfixed to the crotch area of the palm of the glove body for engagement with the handle portion of the bat when gripped in the batter's hand so as to maintain the handle portion at a spacing from the palm of the hand and induce the batter to cradle the handle portion within the fingers.

Abstract: A method and apparatus for correcting an interruption of yarn travel resulting in a trailing yarn end from a take-up bobbin and a leading yarn end from a feed bobbin, wherein after the interruption of yarn travel, the take-up bobbin is braked to a stop and a sensor detects the absence of the trailing yarn end from the take-up bobbin. If the absence is detected, the take-up bobbin is rotated in the take-up direction until the trailing yarn end is wound onto the take-up bobbin. If the absence is not detected, it is assumed that the trailing yarn end is wound onto the take-up bobbin. A catcher nozzle is provided for aspirating the trailing end if it is not wound onto the take-up bobbin, and the sensor is associated with the catcher nozzle. A suction nozzle is provided for aspirating the yarn end from the peripheral surface of the take-up bobbin and placing the trailing yarn end in a yarn end joining device where it is joined to the leading yarn end.