The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 10, 1976
Filed:
Jun. 21, 1974
Michael S Birkin, Derby, EN;
British Railways Board, London, EN;
Abstract
This invention relates to a vehicle control system in which a vehicle travels along a fixed trackway, the trackway having one or more divergent portions at which it divides into two or more alternative routes. A plurality of transponders or beacons are positioned adjacent the trackside in advance of each of the divergent portions to pass information to control equipment on the vehicle relating to the running characteristics of one of the alternative routes. A directional radio transmitter is positioned adjacent the divergent portions to transmit information to a receiver linked to the control equipment carried by the vehicle to enable the control equipment to identify the particular transponder or beacon relating to the route to be followed at the divergent portion and to act upon the appropriate information passed from that transponder or beacon.