Sliding Rail Patents (Class 246/380)
  • Patent number: 4890804
    Abstract: Disclosed is an improved turnout unit to be employed in turnout point of railway tracks, which does not necessitate maintenance of the sliding surface of the base plate. In the turnout unit of the present invention, a spray-coated ceramic layer is formed on the base plate and the tongue rail slides on the ceramic layer.
    Type: Grant
    Filed: January 21, 1988
    Date of Patent: January 2, 1990
    Assignees: Nippon Sharyo Seizo Kabushiki Kaisha, Kanto Bunkiki Kabushiki Kaisha
    Inventors: Tomihiko Teramoto, Hidehiko Ono, Sadanobu Ito, Kiyoshi Nishino
  • Patent number: 4210300
    Abstract: This invention relates to an improvement in a point switch in which the switch blades or tongues are composed of rail sections of the trunk or main track and are displaceably positioned on slide chairs in the transverse rail direction, the improvement comprising a shaft on which each slide chair is slidingly mounted between two bearing blocks, one of the bearing blocks being inside the track and the other of the bearing blocks being outside of the track, welds rigidly connecting the bearing blocks with a joint base plate, and two rods on each chair parallel to the shaft, a first one of the rods being adapted to contact a stop in a recess in the outside bearing block, and a second one of the rods being adapted to contact a lock in a recess in the outside bearing block, whereby in an unlocked condition the first one of the rods contacts the stop, and in a locked condition the second one of the rods contacts the lock.
    Type: Grant
    Filed: April 17, 1979
    Date of Patent: July 1, 1980
    Assignee: Elektro-Thermit GmbH.
    Inventor: Bernd-Joachim Kempa
  • 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