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B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
B60L5/04—Current collectors for power supply lines of electrically-propelled vehicles using rollers or sliding shoes in contact with trolley wire
B60L5/12—Structural features of poles or their bases
B60L5/14—Devices for automatic lowering of a jumped-off collector
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FR342278D1904-04-131904-04-13Dispositif pour le controle automatique du trolley sur les chemins de fer électriques
ExpiredFR342278A
(fr)
Appareil automatique pour la projection des annonces lumineuses sur les parois des tunnels ou les murs des tranchées longeant les voies de chemins de fer, tramways