APPARATUS FOR DETECTING WHEEL-SEAT FLAWS IN RAILWAY AXLES

The Research Department of the London Midland and Scottish Railway Company undertook the task of devising and developing a method of detecting wheel-seat flaws in railway axles without removing wheels from axles or even wheel and axle assemblies from the coach. The essential item consists of a rigid steel ring of square cross section, split diametrically to allow it to be clamped to the axle under test. Contact with the axle occurs at three spherical seatings, of which two are fixed to the inside of the ring and the third is adjustable and is screwed to grip the axle firmly after the two halves of the ring have been bolted together. The system described comprises essentially, two nominally rigid reference planes, fixed normal to the axle and set one on each side of a possible flaw situated near the inner end of the wheel seat. If such a flaw does exist the strength of the axle will be less in the direction passing through the center of the axle and the centroid of the flaw than in the direction at right angles to it. Details and case histories are given.

• Corporate Authors:

  Temple Press Limited

  161-166 Fleet Street
  Longon EC4,   England 
• Authors:
  • Johansen, F C
• Publication Date: 0

Media Info

• Features: Photos;
• Pagination: p. 190-192
• Serial:
  • RAILWAY GAZETTE
  • Volume: 78

Subject/Index Terms

• TRT Terms: Axles; Cracking; Defects; Equipment design; Fatigue (Mechanics); Fatigue (Physiological condition); Nondestructive tests; Railroad cars; Technology; Wheels; Wheelsets (Railroads)
• Geographic Terms: United Kingdom
• Old TRIS Terms: Axle fatigue; Wheel defects
• Subject Areas: Design; Railroads; Vehicles and Equipment;

Filing Info

• Accession Number: 00039621
• Record Type: Publication
• Files: TRIS
• Created Date: Dec 4 1994 12:00AM