EXPERIMENTS WITH POINTS AND CROSSINGS

The partially welded type of frog, in which the only loose parts are the through securing bolts and nuts has been installed on the German Federal Railway, with, considerable success. As much as 80 percent saving in maintenance is claimed, compared with the ordinary built-up type. Hardening is done by a special process which gives a maximum value of 120-130 Kg/mm 2. That part of the frog forming the distance piece and the nose at the point rail is made up from a forging which is welded to the point rails by flash welding. The life of welded frogs is twice that of the normal type, but cost of maintenance is almost negligible, furthermore gauge widening is eliminated.

• Corporate Authors:

  Temple Press Limited

  161-166 Fleet Street
  Longon EC4,   England 
• Publication Date: 1957-3-29

Media Info

• Features: Photos;
• Pagination: p. 363
• Serial:
  • RAILWAY GAZETTE
  • Volume: 106

Subject/Index Terms

• TRT Terms: Concrete hardening; Costs; Hardness; Maintenance management; Maintenance of way; Technology
• Uncontrolled Terms: Maintenance costs; Switches
• Geographic Terms: Germany
• Subject Areas: Finance; Railroads;

Filing Info

• Accession Number: 00037628
• Record Type: Publication
• Files: TRIS
• Created Date: Jul 8 1994 12:00AM