Schubert & Salzer

Gerd Husges

Eberhard Grimm

Rupert Karl

Edmund Schuller

Walter Mayer

W Gerhard Hoeber

Horst Hofer

The present invention relates to a device for forming a reserve winding on a bobbin tube outside the traversing path of a main thread guide which moves to and fro along the bobbin tube wherein a thread holding device is disposed in the vicinity of a thread path between a thread delivery point and the bobbin tube. The device includes an auxiliary thread guide arranged in the region of the reserve winding between the bobbin tube and the thread holding device having two deflecting guides between which the thread can be guided parallel to the surface of the bobbin tube whereby a thread catching projection disposed on the bobbin tube and rotating therewith projects between the two deflecting guides for catching the thread, and a movable thread guide arranged on the side of the auxiliary guide away from the bobbin for transferring the thread to the main traversing thread guide after the reserve is formed.

Device for forming a reserve winding on a bobbin tube

The present invention relates to a controllable thread extractor with an air passage connected to a vacuum source which includes a shaft passageway perpendicular to the air passage dividing the air passage into two sections, a ball is received in the shaft and means for actuating the ball to selectively open and close the air passage.

Controllable thread extractor device with an air passage connected to a

A knotting mechanism for use on open-end spinning machines for performing a knotting process on yarn produced on machines. The knotting mechanism is mounted so that it can be moved longitudinally along the spinning machine and transversely to the spinning machine to a knotting position. A switch-on mechanism is activated responsive to the knotting mechanism being moved transversely to the spinning machine to a knotting position. A driving mechanism is provided for initiating the knotting process on the yarn upon being activated. A release mechanism is operably connected to the driving mechanism for activating the driving mechanism responsive to the switch-on mechanism being activated. A timing device de-activates the driving mechanism after a predetermined period of time sufficient to carry out the knotting process and prevents the driving mechanism from initiating another knotting process without the switch-on mechanism being further de-activated and re-activated. Both electro-mechanical and mechanical mechanisms are provided for insuring that only a single knotting process is performed while the knotting mechanism is in the region of the yarn that is to be knotted.

Knotting mechanism provided with a driving mechanism

A method and apparatus for the elimination of an irregularity in a yarn being produced on an open end spinning machine and drawn off therefrom by a pair of draw-off rollers and wound on a bobbin. The yarn is deflected into an N-shaped run so that a knotting mechanism can knot the parallel portion of the yarn together so as to remove the irregularity in the yarn. Yarn guides are provided on the knotting mechanism for displacing an oblique portion of the yarn out of the knotting mechanism when in use.

Method and mechanism for elimination of an irregularity in a yarn

A winding apparatus including a winding roll driving a bobbin and a yarn reservoir arranged between a yarn supply point and the winding roll. The state of filling of the reservoir is monitored by a monitoring device which generates a signal for controlling the speed of the winding roll. Interposed between a driven drive shaft and the winding roll are a pair of intermediate wheels which are selectively brought into engagement with the drive shaft and the winding roll responsive to predetermined states of filling of yarn on the reservoir that is sensed by the monitoring device so as to either drive the winding roll at speed higher or lower than the delivery speed at the yarn delivery point. A brake lever is operably connected to a mechanism which supports the intermediate wheels and is brought into contact with the winding roll when both the intermediate wheels are out of engagement with the shaft and winding roll for stopping the winding roll.

Winding apparatus

An open-end spinning apparatus having a fiber conveying path between a fibrous material feed device and a spinning compartment. A trash separating device which includes an aperture and a dividing edge is provided for removing trash from the fibrous material as it is conveyed along the conveying path extending around an opening roller. A collection chamber is provided for receiving the trash from the trash separating device. Interposed between the trash separating device and collection chamber is an auxiliary chamber. A first aperture extends through a wall of the auxiliary chamber through which a stream of air flows for being introduced into the fiber conveying path. A second aperture is provided in an opposed wall of the auxiliary chamber through which a smaller stream of air is removed from the auxiliary chamber along with small particles of fly and trash. A controllable closing member is disposed between the auxiliary chamber and the trash collection chamber which is closed when air is used for removing the trash collected in the trash collecting chamber.

Open-end spinning apparatus

An apparatus for feeding a carding machine with fiber material having a shaft which is fed by a preceding feed shaft. The fiber material is conveyed into the feed shaft by means of a stream of air flowing through a conveying conduit. An air circulating passage is connected between the feed shaft and the filling shaft. An air conveying device is disposed in the air circulating passage for conveying the stream of air emerging from the feed shaft into the filling shaft for compressing the fiber material therein.

Apparatus for feeding a card with fiber material

An open-end spinning device wherein yarn is produced in a spinning compartment and withdrawn therefrom by yarn-withdrawal rollers and a winding device. The yarn storage device is interposed between the yarn-withdrawal rollers and the winding device. A knock-off motion is positioned between the spinning compartment and the yarn withdrawal rollers for producing a signal responsive to changes in tension in the yarn. THe yarn storage device includes a roller storage which is driven in a forward direction for accumulating a supply of yarn that is to be fed to the winding device. The roller storage can also be rotated in a reverse direction for withdrawing yarn therefrom during a piecing operation. A yarn gripper is provided for gripping the yarn upon a change in tension in the yarn.

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Ingolstadt, Germany

Gerd Husges