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DANIEL RICHARD WALLWORK HARDMA
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DANIEL RICHARD WALLWORK HARDMA
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Application filed by DANIEL RICHARD WALLWORK HARDMAfiledCriticalDANIEL RICHARD WALLWORK HARDMA
Application grantedgrantedCritical
Publication of FR352105ApublicationCriticalpatent/FR352105A/fr
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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Engineering & Computer Science
(AREA)
Power Engineering
(AREA)
Transportation
(AREA)
Mechanical Engineering
(AREA)
FR352105D1905-02-171905-02-17Dispositif de sureté pour les perches de trolley de tramways électriques
ExpiredFR352105A
(fr)