Under Main Rail Patents (Class 238/19)
  • Patent number: 9988768
    Abstract: The disclosure provides a guard bar restraint for restricting movement of a guard bar. The guard bar restraint includes a hook block coupled to the front face of the guard bar, a back plate configured to contact the back face of the guard bar, and at least one fastener configured to hold the hook block against the front face of the guard bar and to hold the back plate against the back face of the guard bar. The guard bar restraint is coupleable to the guard bar and configured to allow no more than a maximum predetermined amount of lateral movement by the guard bar.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: June 5, 2018
    Assignee: Progress Rail Services Corporation
    Inventors: Brian F. Weaver, Phillip R. Merrifield
  • Patent number: 8302877
    Abstract: The first object of the present invention is to provide a derailment prevention guard which can be easily shunted outside the range of the ballast tamping work, the rail grinding work and the rail maintenance work, and has no problem on safety.
    Type: Grant
    Filed: January 31, 2011
    Date of Patent: November 6, 2012
    Assignees: Central Japan Railway Company, Yamato Trackwork System Co., Ltd.
    Inventors: Masaki Seki, Takashi Kachi, Tomomi Funada, Takaaki Irie, Katsunari Konishi, Tetsuya Hanazaki
  • Patent number: 7891577
    Abstract: A derailment prevention guard includes a guard member (3) installed within a gauge and a support member (6) fixed to a sleeper (4) or a concrete slab track. The guard member (3) engages a hold member (8) moveable around an axis (7) supported by the support member (6) as turning center between a main rail (1) and the inside of the gauge on the sleeper. The support member (6) engages the hold member (8) by bolt (12) through turning the hold member (8) toward the main rail (1) around the central axis (7) as turning center on the sleeper (4), and the guard member (3) can be shunted inward by turning the hold member (8) toward the inside of the gauge around the central axis (7) as turning center on the sleeper (4) after loosening the bolt (12).
    Type: Grant
    Filed: May 11, 2006
    Date of Patent: February 22, 2011
    Assignees: Central Japan Railway Company, Yamato Trackwork System Co., Ltd.
    Inventors: Masaki Seki, Takashi Kachi, Tomomi Funada, Takaaki Irie, Katsunari Konishi, Tetsuya Hanazaki
  • Patent number: 4504223
    Abstract: A soldering device for radiator tanks comprises a large number of burner nozzles disposed along the entire width of and directed to the soldering area. Cooling pipes are provided on burner tables which can be adjusted so that the radiator can be inserted inside the gap formed therebetween. A control means shifts the times for starting and shutting off the supplying of an oxygen-containing gas from the burner ignition and fire extinction times.
    Type: Grant
    Filed: August 18, 1983
    Date of Patent: March 12, 1985
    Assignee: Ryowa Engineering Company, Limited
    Inventors: Kazuo Yamada, Hiroshi Sakaki
  • Patent number: 3945566
    Abstract: A railroad track fastener assembly consisting of a spring plate and a resilient seat for a railroad rail comprising a pad of resilient material positioned between the rail base and the base of a spring plate. The spring plate may be bolted to any type of cross tie or foundation of concrete, steel, or wood. The pad of resilient material is formed with a plurality of spaced vertical holes and is either bonded to the base of the spring plate and is freely positioned within the spring plate. The pad is retained within the spring plate by spring shoulder clips that are secured to the spring plate shoulders resiliently checking the upward motion of the rail under a heavy load. Guard rails and braces are provided for maintaining the wheels of rolling stock on the rails while rounding curves.
    Type: Grant
    Filed: September 23, 1974
    Date of Patent: March 23, 1976
    Assignee: New York City Transit Authority
    Inventor: Charles J. Bush