Abstract: A process for controlling the operation of a textile draw frame wherein a plurality of fiber slivers are fed to the draw frame at a predetermined desired delivery speed includes monitoring the presence of individual fiber slivers delivered to the draw frame and decreasing the delivery speed of the draw frame if any of the monitored fiber slivers is indicated as missing from being fed to the draw frame. The process includes subsequently increasing the delivery speed of the draw frame if the respective missing fiber slivers are again indicated as being fed to the draw frame. The invention also includes a draw frame including apparatus for carrying out the controlling process.

Abstract: A ringworm vaccine comprising an effective amount of a homogenized, formaldehyde-killed Microsporum canis culture in a carrier. The vaccine can include an effective amount of the homogenized, formaldehyde-killed Microsporum canis culture in a combination with homogenized, formaldehyde-killed pure Microsporum gypsum culture and homogenized, formaldehyde-killed pure Trichophyton mentagrophytes culture. Methods of treating a patient employing the vaccines are disclosed.

Abstract: The invention is a process and a device for the jigging of a flat can in a textile draw frame. According to the invention, the flat can is subjected to different dynamic moments in the translational movement along the jigging path. It is a characteristic of the invention that the speed is regularly modified in proximity of the reversal points (P1, P2), i.e. in the area of the reversal paths (UW1, UW2). The jigging device is provided with a driving device which renders the constant translational movement changeable in proximity of the reversal point (P1, P2). The driving device may be a servomotor controlled by a computer which serves as the control device. In another embodiment the diving device is a different, less expensive electric motor on the drive shaft of which belt pulleys capable of being coupled are installed.

Abstract: A yarn is fed at a piecing speed to the fiber collection surface of a spinning rotor. It is there combined with the fibers of a fiber ring and is then drawn off from the spinning rotor in the form of a continuous yarn while fibers newly fed into the spinning rotor continue to be incorporated in the yarn. The rotor speed is changed, immediately after piecing, from the piecing speed to a rotational speed which is lower than the piecing speed. The rotor speed is then increased to the production speed. In this manner, optimal conditions are achieved with respect to propagation of twist and draw-off of the piecing joint. To carry out this process, elements are provided for the reduction of the rotor speed from piecing speed to a lower value, for renewed acceleration of the rotor speed after a desired minimum value has been reached of after the passage of a predetermined period of time, as well as elements to tie the accelerating rotor speed to the desired production speed.

Abstract: A yarn is fed at a piecing speed to the fiber collection surface of a spinning rotor. It is there combined with the fibers of a fiber ring and is then drawn off from the spinning rotor in the form of a continuous yarn while fibers newly fed into the spinning rotor continue to be incorporated in the yarn. The rotor speed is changed, immediately after piecing, from the piecing speed to a rotational speed which is lower than the piecing speed. The rotor speed is then increased to the production speed. In this manner, optimal conditions are achieved with respect to propagation of twist and draw-off of the piecing joint. To carry out this process, mechanisms are provided for the reduction of the rotor speed from piecing speed to a lower value, for renewed acceleration of the rotor speed after a desired minimum value has been reached after the passage of a predetermined period of time, as well as mechanisms to tie the accelerating rotor speed to the desired production speed.

Abstract: A process of stacking bobbin formers in superimposed layers in a former magazine and separating the bobbin formers of, at least, the lowest layer and removing them from the former magazine. The bobbin formers of the lowest layer are maintained in contact on their underside with a support which moves in direction of the discharge point. A device for the storage of bobbin formers in a former magazine comprising a conveyor is disposed below the stored bobbin formers to separate said bobbin formers. The running direction of the conveyor is essentially tangential to the surface of the stored bobbin formers. The device includes a device for the removal of separated bobbin formers is supported on a support which is moved in the direction of the discharge point. This support exerts a tangential frictional force upon the surfaces of the bobbin formers so that said bobbin formers roll towards the discharge point.

Abstract: A device for the feeding and opening of a fiber sliver for an open-end spinning device, having a feeder roll, a pressure roll interacting with the feeder roll and an opening roll. The device includes a tray with two guide walls guiding the fiber sliver between the pressure roll and the opening roll and laterally between themselves. The pressure roll is mounted in the feeding tray which has a supporting surface between the feeding roll and the opening roll, to support the fiber sliver and which is delimited by the guide walls. The opening roll is driven in the same direction of rotation as the feeder roll.

Abstract: What is described is a leg-supporting means for making restrained X-ray photographs of the knee joint. In order to obviate the disadvantages of the apparatus which are on the market for making X-ray photographs of the knee joint, more especially the unstable position of the proband leg and shift instabilities with small degrees of flexion, provision is made for a thigh section or member with two clamping members movable concentrically relatively to one another to be connected to a ring enclosing the X-ray zone for the knee joint, and for the ring with the thigh member to be rotatable relatively to a lower leg member about its center and by up to 90.degree. towards both sides.