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B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
B61F15/00—Axle-boxes
B61F15/20—Details
B61F15/22—Sealing means preventing entrance of dust or leakage of oil
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FR685850D1929-11-301929-11-30Système de fermeture à joints étanches pour boîtes d'essieux de tous véhicules et pour paliers de tous genres
ExpiredFR685850A
(fr)
Dispositif pour le calage de paliers à rouleaux coniques ou cylindriques montés dans les boîtes d'essieu de voitures de chemins de fer ou de tramways
Dispositif de direction pour châssis de bogies à plusieurs essieux de remorques de transport lourd dirigées automatiquement suivant la voie du tracteur