A new railway track swith has been designed to operate successfully in snow, ice and cold without assistance from auxiliary devices. Laboratory testing of a prototype showed that the required forces to throw the switch under these climatic conditions were within the capacity of a conventional electric switch machine. Field testing of the prototype, over a period of almost two years in track on a heavy duty, slow speed application at the Canadian Pacific Rail St. Luc Yard, showed that the switch could operate successfully under reasonably severe snow conditions with only minimal snow removal. It was not seriously tested by ice build-up from freezing rain. Although strain gauge measurements showed no structural problems with the switch, a number of design modifications have been recommended to improve the mechanical performance and endurance of the switch.

  • Corporate Authors:

    National Research Council of Canada

    Division of Mechanical Engineering, Montreal Road
    Ottawa, ONo K1A 0R6,   Canada 
  • Authors:
    • Coveney, D B
  • Publication Date: 1979-4

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00311063
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Jun 9 1980 12:00AM