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Hasler AG
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Hasler AG
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Application filed by Hasler AGfiledCriticalHasler AG
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Publication of FR576473ApublicationCriticalpatent/FR576473A/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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FR576473D1923-02-011924-01-30Dispositif de signal pour voitures de chemins de fer, destiné à indiquer le dépassement de signaux de section fermés
ExpiredFR576473A
(fr)