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.)
EDMUND SPENCER TIDDEMAN
W R SYKES INTERLOCKING SIGNAL C Ltd
Original Assignee
EDMUND SPENCER TIDDEMAN
W R SYKES INTERLOCKING SIGNAL C Ltd
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 EDMUND SPENCER TIDDEMAN, W R SYKES INTERLOCKING SIGNAL C LtdfiledCriticalEDMUND SPENCER TIDDEMAN
Application grantedgrantedCritical
Publication of FR518912ApublicationCriticalpatent/FR518912A/fr
B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
B61L3/00—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal
B61L3/02—Devices along the route for controlling devices on the vehicle or train, e.g. to release brake or to operate a warning signal at selected places along the route, e.g. intermittent control simultaneous mechanical and electrical control
Landscapes
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
FR518912D1919-03-191920-07-05Appareil de controle de trafic sur les chemins de fer
ExpiredFR518912A
(fr)