( 16595 of 16595 ) |
United States Patent | 3,552,692 |
Horeczky | January 5, 1971 |
A railway control system is provided in which one loop of wire extends for the length of a block along each block. The length of the trackway is divided into blocks. Provision is made for exciting each wire loop with a signal current. Each train has means for detecting signal current being present in a wire loop in response to which a train car continues to run. However, there is also provided a means responsive to the presence of a train within a block to remove signal current from the wire loop in the block preceding the one in which the train is. As a result, the possibility of a rear end collision is eliminated. Also start up of all trains is made sequential. Provision is also made for sensing that all flights moving in one direction have been cleared from a single line trackway before any flights moving in the other direction are permitted to enter that trackway.
Inventors: | Horeczky; Geza (Pacific Palisades, CA) |
Assignee: |
The Dashaveyor Company
(Venice,
CA)
|
Appl. No.: | 04/751,415 |
Filed: | August 9, 1968 |
Current U.S. Class: | 246/63C ; 246/187B |
Current International Class: | B61L 13/04 (20060101); B61L 13/00 (20060101); B61L 3/22 (20060101); B61L 3/00 (20060101); B61l 003/18 () |
Field of Search: | 246/34,63,182,187B,28,63,167,187A |
3227870 | January 1966 | Joyce |
3234377 | February 1966 | Davison et al. |
3227870 | January 1966 | Joyce |