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LOUIS PARNALAND
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LOUIS PARNALAND
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Application filed by LOUIS PARNALANDfiledCriticalLOUIS PARNALAND
Application grantedgrantedCritical
Publication of FR465142ApublicationCriticalpatent/FR465142A/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
B61L3/04—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 controlling mechanically
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Engineering & Computer Science
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Mechanical Engineering
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FR465142D1913-11-201913-11-20Dispositif de sécurité assurant l'arret automatique des trains
ExpiredFR465142A
(fr)