Subclass 3/08: 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) Devices with reciprocated pushing bars or like driving mechanisms combined with the track for shunting or hauling cars (railway systems of this kind B61B 13/12)