Ballast removal method and apparatus

摘要

The apparatus comprises a movable apron 6 with rotors 8 driven by motors in housings 20 to direct ballast on the apron 6. The motors and rotors can be raised from the apron 6 to allow for repair or replacement of any of these components. The motor housings 20 are above the respective rotors 8 and are mounted on arms pivoted to the apron 6 about horizontal axes.