Special Patents (Class 238/45)
  • Patent number: 4108378
    Abstract: A railroad tie and an assembly thereof with at least one tie plate wherein the wooden tie has rabbetted recesses formed in the top face thereof to receive the tie plates and these recesses are characterized by each having precut or machined grooves for receiving ridges projecting from the bottom of the tie plate. The assembly includes a wooden tie having a rabbetted recess formed in the top face and adjacent each end thereof, each recess has a flat intermediate face having a pair of grooves machined or precut therein and laterally spaced from each other lengthwise of the tie, and a tie plate seating in each recess and having a pair of ridges projecting from the bottom thereof and engaging into the corresponding grooves.
    Type: Grant
    Filed: April 7, 1977
    Date of Patent: August 22, 1978
    Inventor: Roger Raymond
  • Patent number: 4105175
    Abstract: The invention relates to a device for a switching point of a railway track, said switching point comprising two movable tongue-rails controlled in such a manner that their ends may be brought in contact with line-rails, or be separated therefrom, by a sliding movement over bearings carried by sleepers, said device being placed in the space between two bearings and comprising a sliding part or piece supporting at least one tongue-rail on a self-lubricating sliding surface, said part or piece being influenced by elastic springs or the like to lift the tongue-rail or rails which it supports with respect to said bearings, in such a manner that said tongue-rail or rails are not in contact with said bearings during the sliding movement of the tongue-rail or rails, but come directly into contact with the bearings under the influence of the load of a railway vehicle passing over said tongue-rail or rails.
    Type: Grant
    Filed: June 29, 1977
    Date of Patent: August 8, 1978
    Assignee: Gestivalmo Societe Anonyme Holding
    Inventor: Michel R. De Spiegeleer