New coaches have been equipped with an improved Pennsylvania bogie, having reduced play about 1 mm. in new stock designed to take nearly 50 percent of the total load on the bogie. Coaches fitted with these new bogies have an excellent degree of stability in running, up to speeds of 100 mph and over. Double elliptical springs in the bogie were eliminated and were replaced by something flexible, able to damp all stock gradually. The design enabled the total vertical accelerative movements, measured inside the vehicle, to be reduced by some 50 percent, and the shocks caused by passing over the rail joints to be noticeably lessened. These bogies have a control device or system composed of longitudinal and lateral stay-bars, which dispenses with horn plates on the axle boxes, or guides at the ends of the swing bolsters.

  • Corporate Authors:

    Temple Press Limited

    161-166 Fleet Street
    Longon EC4,   England 
  • Authors:
    • Lejeune, M
  • Publication Date: 1951-12-14

Media Info

  • Features: Figures; Photos;
  • Pagination: p. 660-661
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00037788
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 8 1994 12:00AM