the device incorporates a catch-up game with a braking unit for braking system of a vehicle on rails

摘要

A brake adjuster mechanism is of the type operable by a piston moving a threaded spindle axially during braking with a threaded nut thereon adjusting the spindle position. Two control members movable with the spindle are held apart by a spring between shoulder stops on the nut and they serve to position the nut between two opposed clutch surfaces to permit nut rotation until a predetermined slack setting is achieved.