Rail assembly for underground coal-getting machines

摘要

A rail assembly for supporting the wheels of underground wheeled coal-getting machines, in combination with a coal conveyor comprising a plurality of conveyor pans interconnected end-to-end in the direction of movement of the machines with the central axes of adjoining pans being angularly related, the assembly comprising a rail section mounted on each pan with each section including at least three rail elements having adjoining ends interconnected for relative movement along such direction, so that the upper surfaces of the rail sections lie parallel to the central axes of the pans and the rail assembly is thereby made to follow the undulations of the conveyor when mounted in place.