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SYKES W R INTERLOCKING SIGNAL
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SYKES W R INTERLOCKING SIGNAL
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Application filed by SYKES W R INTERLOCKING SIGNALfiledCriticalSYKES W R INTERLOCKING SIGNAL
Application grantedgrantedCritical
Publication of FR519241ApublicationCriticalpatent/FR519241A/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)
FR519241A1919-03-191920-07-07Appareil signaleur pour chemins de fer
ExpiredFR519241A
(fr)