Trailing Setting Patents (Class 246/318)
  • Patent number: 5590857
    Abstract: Apparatus for operating railroad switches, including operation in the trailing mode, and a switch machine having a throw bar and throw rod for enabling the throwing of switch points into selected positions so as to control the switching of rolling stock. A trailing device, including a trailing rod portion of the throw rod, is coupled to the throw bar, said device including an arrangement responsive to a wrong direction load impressed on said switch points so as to move said throw rod, for enabling non-damaging movement of said throw rod.
    Type: Grant
    Filed: August 19, 1994
    Date of Patent: January 7, 1997
    Assignee: General Railway Signal Corporation
    Inventors: Harry A. Albrecht, Daniel W. Van Alstine