Patent ID: 7950628
Filing Date: 2011-05-31
Classification: B60M,B61D,E21F

Abstract:
1. A work platform for a railcar having a horizontal upper surface and a longitudinal axis, comprising (a) a lower base connected with the railcar upper surface, said lower base comprising a lift assembly for moving said lower base vertically relative to said railcar upper surface; (b) an upper base arranged parallel with the railcar upper surface and including at least two spaced pairs of transport wheels connected with said upper base so that said upper base is movable laterally relative to the railcar longitudinal axis between extended and retracted positions parallel to said lower base; (c) a locking mechanism connected with said upper base and operable between a release condition which allows movement of said base relative to an upper surface said lower base and a locked condition which prevents movement of said upper base relative to said lower base.