Description
Class B61J : SHIFTING OR SHUNTING OF RAIL VEHICLES
Subclass 3/02: Shunting or short-distance haulage devices; Similar devices for hauling trains on steep gradients or as starting aids; Car-propelling devices therefor (overhead travelling cranes combined with auxiliary means for shunting railway vehicles B66C 17/26; capstans B66D) Gravity shunting humps (track brakes or retarding apparatus fixed to permanent way B61K 7/02)