These chairs were installed nine years ago on the double-line 350-ft. steel central span of the Victorian Bridge over the St. Lawrence and extensometer tests have shown "important reductions in impact stresses" in the superstructure. Other advantages claimed for this chair and its fittings include the elimination of sleepers and their renewal; of ballast, its cleaning, maintenance, and waterproofing; reduction of vibration, bridge dead load, and construction depth; also of excavation in tunneling. Moreover, the positive resilient grip on the rails minimizes wear between track and components, provides uniform distribution of stress, limits vibration, and ensures greater cleanliness and a truly-aligned track, as well as greater safety. It eliminates track maintenance, is economical and secures a long-enduring road and trouble-free operation.

  • Corporate Authors:

    Temple Press Limited

    161-166 Fleet Street
    Longon EC4,   England 
  • Publication Date: 1952-4-25

Media Info

  • Features: Appendices; Figures; Photos; References;
  • Pagination: p. 460-462
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00039606
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Dec 4 1994 12:00AM