Abstract: A device for operating a machine element subject to wear-related play, especially for brakes of rail vehicles, includes a pressure-medium-operated piston-cylinder arrangement having a cylinder and operating piston, the piston rod of which is actively connected to a readjustment device that compensates for wear-related play. To realize a simple and compact structure and create further prerequisites for active integration into an operating system, the readjustment device comprises a readjustment piston mounted in the piston-cylinder arrangement between the operating piston and the bottom of the cylinder and acts as a limit stop for the operating piston. For axial arresting the readjustment piston, a coaxial piston rod shoulder that faces the bottom of the cylinder and a holding element resting on the bottom of the cylinder form an arresting arrangement that permits movement of the readjustment piston toward the operating piston and blocks a counter movement of the readjustment piston.

Abstract: The invention concerns a braking device with a piston that can be acted upon by a pressure medium from a pressure medium chamber against the force of a actuation spring. The piston is connected through an actuation arm with a brake linkage. In order to reduce the dimensions of the braking device, the actuation spring and the actuation arm are parallel and coaxial to each other, such that the actuation spring and the actuation arm are located between the moment arms of the brake linkage.

Abstract: The invention relates to a brake jaw arrangement for a disc brake. The brake jaw essentially consists of two brake levers which carry on one end thereof a brake lining holder and on their other end are connected to cooperate with an operating mechanism. The operating mechanism causes the ends of the brake levers equipped with the brake lining holders to be moved toward each other or away from each other.

Abstract: A brake cylinder device for railway vehicles including a built-in automatic slack adjuster and a manually axially positionable piston for resetting the piston and piston rod relative to the slack adjuster when necessary, such as when replacing worn brake shoes, the piston rod being interconnected through a nut and screw, friction clutch, and a key to a manually rotatable member, which, when rotated causes axial displacement of the piston rod and piston to desired adjusted position relative to the slack adjuster.