Patents Assigned to Imperial Chemical Ind. (Europa) Fibres
  • Apparatus for the detection of breaks in moving threadlines
    Patent number: 3932854
    Abstract: An apparatus and method for detecting breaks in a travelling threadline of a synthetic filament is described. The motion of the threadline is monitored for speed by means of generating an electrical current by passage of the threadline across an idler roll. Increases or decreases in the speed of the threadline change the frequency of the electrical current generated, thereby providing means for signaling threadline speed changes such as occur in breaks and wrapping of the threadline.
    Type: Grant
    Filed: May 8, 1972
    Date of Patent: January 13, 1976
    Assignee: Imperial Chemical Ind. (Europa) Fibres
    Inventors: Wolfgang Wetzel, Manfred Muller