LOCOMOTIVES AND MEANS FOR AUGMENTING THE TRACTIVE EFFORT OF LOCOMOTIVES

摘要

A device for engaging a locomotive to provide or augment its tractive effort, the device comprising reaction members adapted to adhere magnetically to a rail and means for reacting against the reaction members to propel the device, wherein the reaction members comprises a series of magnetic devices attached to an endless chain movable in a path which brings the magnetic devices into working contact with the rail and the chain being driven thereby to propel the device.