Abstract: A self-steering system for a radial bogie of a railroad vehicle is provided. The self-steering system includes a plurality of links which connect the leading and trailing wheelsets to the bogie frame. Each of the links is adapted to provide a smaller degree of movement between the link and the wheelset at one end and a larger degree of movement between the link and the bogie frame at the other end.

Abstract: A self-steering system for a radial bogie of a railroad vehicle is provided. The self-steering system includes a plurality of links which connect the leading and trailing wheelsets to the bogie frame. Each of the links is adapted to provide a smaller degree of movement between the link and the wheelset at one end and a larger degree of movement between the link and the bogie frame at the other end.

Abstract: An improved semi-articulated railway power bogie has a pair of multiple axle sub-bogies semi-articulated for creep force turning control while retaining freedom of rocking and relative longitudinal motion. An equalized centered bolster suspension and low load transfer rod linkage maintain high equalization of loads and tractive forces at the wheels to provide overall high adhesion and curving efficiency. Various improvements may include a preloaded resilient compression element in an articulating mechanism for improved sub-bogie turning control, two piece bearing adapters carrying primary spring suspensions and with rubber bushed traction rods and lateral thrust control for transmitting longitudinal and lateral forces to sub-bogie frames, and rubber bushed nose links connecting traction motor nose connections to transoms of the frames.

Abstract: An arrangement for self-steering, radial bogie, truck or vehicle frame for locomotives and other railroad vehicles, which includes steering beams for and located behind their respective leading and trailing wheelsets, and whose rotary motions are coupled by an inter-axle link to provide opposite transverse movement of the first and third wheelsets upon traversing curves.

Abstract: An arrangement for self-steering, radial bogie, truck or vehicle frame for locomotives and other railroad vehicles, which mount unitized brakes to steering beams located either ahead and/or behind their respective leading and trailing wheelsets.

Abstract: An arrangement for self-steering, radial bogie, truck or vehicle frame for locomotives and other railroad vehicles, which mount unitized brakes to steering beams located either ahead and/or behind their respective leading and trailing wheelsets.

Abstract: An arrangement for self-steering, radial bogie, truck or vehicle frame for locomotives and other railroad vehicles, which includes steering beams for and located behind their respective leading and trailing wheelsets, and whose rotary motions are coupled by an inter-axle link to provide opposite transverse movement of the first and third wheelsets upon traversing curves.

Abstract: On truck frames having three wheelsets, the invention teaches that the middle wheelset is in contact on each side with the vehicle frame by means of actuators in the lateral direction. These actuators are used to adjust the middle wheelset when the train travels through curves toward the outside of the curve, as a function of the angle of rotation of the truck frame, which is determined by means of measurement elements.

Abstract: On undercarriages for railway vehicles with at least four wheelsets which are combined into trucks, the invention teaches that force-controlled or displacement-controlled actuators are located on the end wheelsets of the trucks. These actuators thereby act on the wheelset bearings, and in terms of their effect, they are connected in parallel, in the case of the force-controlled actuators, and in series, in the case of the displacement-controlled actuator with a wheelset restraint. This system makes possible a controlled rotation of the wheelset in relation to the truck frame.