Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ES THOMSON-HOUSTON
Compagnie Francaise Thomson Houston SA
Original Assignee
ES THOMSON-HOUSTON
Compagnie Francaise Thomson Houston SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ES THOMSON-HOUSTON, Compagnie Francaise Thomson Houston SAfiledCriticalES THOMSON-HOUSTON
Application grantedgrantedCritical
Publication of FR404185ApublicationCriticalpatent/FR404185A/fr
B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
B61L23/00—Control, warning or like safety means along the route or between vehicles or trains
B61L23/08—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in one direction only
B61L23/14—Control, warning or like safety means along the route or between vehicles or trains for controlling traffic in one direction only automatically operated
B61L23/16—Track circuits specially adapted for section blocking
B61L23/166—Track circuits specially adapted for section blocking using alternating current
Landscapes
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
FR404185D1909-05-281909-05-28Perfectionnements aux blocs-systèmes électriques
ExpiredFR404185A
(fr)