Abstract: A gangway is provided between two railway cars or units of railway cars that are pivoted to one another, and that forms a continuous, stepless passage for all travel motions. The entire gangway is designed as a unit that is held in the central position to each of the ends of the cars facing one another with the ability to shift lengthwise, by a centering device, and is supported and guided on bridge bearings, and is mounted to be able to pivot around its vertical axis and also to be able to tip out of the horizontal plane. The bridge area of the gangway consists of a number of rigid rails placed parallel to one another at prescribed distances and able to move lengthwise, which are enclosed and guided at both ends in supporting profiles that are mounted and guided on the bridge bearings associated with them.

Abstract: An intermediate portal protecting an intercommunicating gangway between two coupled vehicles, particularly railroad cars. The portal comprises two mirror-symmetrical parts which are detachably connected to each other. The portal is closed on all sides and mounted for lateral displacement relative to the cars. On a straight track, the portal contour is flush with the contour of the cars. The parting surfaces between the portal and the respective car are designed to maintain a definite narrow gap therebetween under any operating conditions, as long as a supporting and guiding structure can follow these parting surfaces in parallel motion. To this end, the invention provides a supporting and guiding arm by which the portal is guided both horizontally and vertically by means of cam tracks conformable to the parting surfaces which are preferably spherical.

Abstract: In a train formation, the passage from one car to the next is surrounded by a passover protection which comprises a central gantry closed on all sides which is mounted laterally displaceable relative to the cars. The central gantry is a mirror symmetric arrangement, even with the vehicle sides, consisting of adapter frames with peripheral abutments contacting elastic, hollow sections located peripherally between the abutments and the matching ends of the vehicle for small movement. A second set of peripheral, elastic hollow sections, structured for larger movement, is connected to the inner ends of the adapter frames and to the coupling frames. Connecting linkages are provided for guiding the adapter frames relative to the vehicles.