Abstract: Vibration damper, including a damping element and a pneumatic spring, wherein the damping element has a container tube, which is connected to a roll-off piston of the pneumatic spring. The roll-off piston is connected via an air suspension bellows acting as a rolling diaphragm to an external guide mounted concentrically and with freedom of axial movement with respect to the roll-off piston, the air suspension bellows and the roll-over piston forming the boundaries of a space filled with pressurized gas. The container tube is prepared for the installation of the roll-off piston by a non-cutting procedure suitable for mass production, wherein a length of tubing having the diameter of the container tube is mounted on a mandrel and clamped at both ends so that its length cannot change, and a pair of flow-turning/rotary-swaging rolls is pressed against the tubing and advanced toward each other to form an area of squeezed material.

Abstract: A pressure cylinder for a hydraulic actuation device in motor vehicles includes a housing (1) with an internal cylinder (2,3). A piston (6) is displaceable in the internal cylinder for forming a pressure space (12) for a hydraulic fluid. The piston includes a hemispherical socket (10) in an indentation (9). A spring (18) is arranged in the pressure space (12), and a tappet (7) is connected by a transmission part with a hemispherical cap (8). The tappet (7) is in a frictional and swivelable engagement in the socket (10) in an indentation (9) by the force of the spring (18). The piston is a deep-drawn, cup-shaped part and includes a filling piece (13) in the interior of the piston (6). An annular space (15) is disposed at a piston surface (14) facing toward the pressure space (12). The annular space (15) is for receiving the spring (18) in a compressed state when the piston (6) is in a top dead center position.

Abstract: An apparatus engageable with a hand brake assembly for automatically applying at least one brake device secured to a railway vehicle with such hand brake assembly. The apparatus includes an operating mechanism having at least a portion thereof engageable with at least one gear of a gear assembly disposed in a housing member of the hand brake assembly for operating such gear assembly in a direction which will cause an application of such brake device. A source of fluid pressure is connected to the operating mechanism for periodically supplying a predetermined pressure to such operating mechanism for the application of the brake device. An activating device is connected to the source of fluid pressure for initiating the supply of such predetermined pressure to the operating mechanism thereby causing an automatic application of such brake device by the hand brake assembly.

Abstract: An hydraulic damping mount has an outer sleeve, an inner sleeve for securing thereto a piston of a spring strut (activatable in at least one direction), an elastomeric body and two chambers. The two chambers are interconnected via a gap. The inner sleeve comprises a radially projecting boss separating the two chambers from each other. The connection between the two chambers is configured in accordance with the invention as a gap between the boss and the outer sleeve so that when activated, the fluid flow through the gap is in the direction opposite to the movement of the boss, resulting in a reduction in the stiffness. This simplifies assembly whilst enhancing the stiffness response of the mount. The invention relates furthermore to a mount for supporting a spring strut in making use of such a mount.

Abstract: A brake body, for a brake pad or a disk brake lining, comprising: a support body having at least one recess; at least one friction material element arranged in the at least one recess with the at least one friction material element being movably inserted in a longitudinal direction in the at least one recess and, together with the support body, forming a friction surface; and a share-elastic intermediate layer inserted in a space along the at least one recess between the at least one friction material element and the support body.

Abstract: An improved bushing assembly for the outboard end of a brake cam shaft is provided with a bushing which establishes a grease flow pathway within the bushing assembly. Grease enters an aperture formed in a boss of the brake spider which holds the bushing through a grease zerk which is aligned with a first radial hole in the bushing, so the fresh grease injected goes directly to a grease reservoir between the bushing and the shaft. Flow channels provided in the bushing interior surface guide the grease around the shaft to a second radial hole which is diametrically opposite the first radial hole. Sealing means on the shaft restrict grease flow axially from the bushing along the shaft. Grease may be purged through the second radial hole to an annular space between a flanged inboard end of the bushing and the periphery of the aperture, from which the grease may exit. The flanged end of the bushing has tabs for engaging slots in the boss to align the bushing and to prevent rotation within the aperture.