Improper Presence In Shuttle Box Patents (Class 139/342)
  • Patent number: 4673003
    Abstract: A stopping mechanism includes a brake device for an insertion device and a detector for determining the position of the insertion device. The detector includes a sensor which subjects the insertion device to electromagnetic radiation in the microwave range and operates on the Doppler principle. The position of the insertion device is determined by counting the number of crossover points of the Doppler signal in relation to a reference position. The detector has a high degree of resolution and is particularly suitable for looms using gripper shuttles. It is also highly flexible in the location in which the sensor may be arranged in the stopping mechanism.
    Type: Grant
    Filed: September 5, 1986
    Date of Patent: June 16, 1987
    Assignee: Zellweger Uster Ltd.
    Inventor: Simon Goede
  • Patent number: 4192354
    Abstract: A catcher mechanism for the weft picking means of a weaving machine which facilitates higher machine speed. Included in the catcher mechanism is a picking means brake, a sensing element movable into the path of the picking means, and a push-back member for pushing the picking means away from its stop position and into a yarn release position. The sensing element has the end thereof adjacent the picking means in engagement with a spring member so that the sensing element is movable along with the push-back member in the push-back direction, such movement being against the force of the spring.
    Type: Grant
    Filed: May 26, 1978
    Date of Patent: March 11, 1980
    Assignee: Sulzer Brothers Limited
    Inventor: Erwin Pfarrwaller