Chicago & North Western is taking an electronic approach to the prevention of derailments by determining the precise locations where track conditions are conducive to rock-and-roll wheel uplift. The system measures track deviations in cross level and alignment and relates their combined effect in producing rock-and-roll action that will cause a car's wheels to lift from the rail at a critical speed. Pick-up device includes two gyroscopes, one sensitive to the roll axis of the axle and the other to the turn axis. Both are in fixed position with respect to the axle.

  • Availability:
  • Supplemental Notes:
    • See also Railway Track Structures, Vol. 67, No. 11, Nov. 1971, pp 22-24.
  • Corporate Authors:

    Simmons-Boardman Publishing Corporation

    P.O. Box 350
    Bristol, CT  United States  06010
  • Publication Date: 1971-11-8

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00050367
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Files: TRIS
  • Created Date: Jan 24 1976 12:00AM