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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
B61F17/00—Lubrication specially adapted for axle-boxes of rail vehicles
B61F17/02—Lubrication specially adapted for axle-boxes of rail vehicles with oil
B61F17/04—Lubrication by stationary devices
B61F17/12—Lubrication by stationary devices by gravity
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FR728550D1931-08-051931-08-05Boîte d'essieu avec évidements dans les parties pleines pour le passage du lubrifiant
ExpiredFR728550A
(fr)