The Swiss-developed safety control apparatus operates on a distance interval, and therefore gives the same factor of safety irrespective of the locomotive speed, whereas the more common system based on a time interval does not achieve this feature. The effect of the new apparatus is basically the same as the previous systems, i.e., following the incapacity for duty of the driver, a warning is sounded in the cab and if no action is taken by the driver the traction motors are switched off and the brakes applied. A diagram showing the mechanical and electrical circuits of the safety device is given. Also shown is part of a diagram of the run-down on the safety apparatus expressed in locomotive miles travelled.

  • Corporate Authors:

    Temple Press Limited

    161-166 Fleet Street
    Longon EC4,   England 
  • Publication Date: 1955-9-16

Media Info

  • Features: Figures;
  • Pagination: p. 333-334
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00039651
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 8 1994 12:00AM