Fluid Pressure Patents (Class 246/361)
  • Rail system having wheel-engaged hydraulic piston-and-cylinder assembly, and such an assembly
    Patent number: 4291854
    Abstract: In a rail system one or more hydraulic assemblies comprising a movable cylinder (6) with a wheel-engaged rounded head (7) and a fixed piston (4) within the cylinder (6) are located adjacent a running rail (1). When engaged by passing rail wheels (2) the assembly provides pressurized fluid which is fed into a pressure line which leads to means for switching a set of points. Energy is thus extracted from moving rail vehicles and it is unnecessary to provide long-distance power supplies to a set of points.
    Type: Grant
    Filed: November 5, 1979
    Date of Patent: September 29, 1981
    Assignee: Hoogovens Ijmuiden, B.V.
    Inventors: Cornelis P. Pelt, Hendrikus De Jong