Abstract: The invention relates to a suspended motorized vehicle traveling on a line consisting, in its straight sections, of rails placed on track cables held by suspender cables tied to main cables and comprising, for the curved sections, rigid shapes supported by brackets or crossbeams making it possible to change the direction of the vehicles. The invention proposes mounting of wheel sets supported independently of one another, comprising load equalizing bars, and independent motorizing of the wheels.

Abstract: A sensing and regulating apparatus for use with a tool such as a welding torch guided along a bevel, an oxygen cutting head, a chisel, a milling cutter, or a nibbling machine, comprises an optical apparatus projecting a light ray on a reference line where it delineates a spot which is diffused particularly toward a receiver consisting of elements sensitive to light. The spot of light falling on the receiver supplies two adjustment signals according to its position and its width. These signals are used to control elements carrying the optical apparatus so that the apparatus continually follows the reference line and so that it always remains at the same distance from the reference line. The movements of the optical apparatus control the associated working tool so that its path is equal, or homothetic, to that of the optical apparatus as a result of the reference line.

Abstract: A railway vehicle for urban use has at least one motorized truck and at least one non-motorized supporting truck. The supporting truck is provided with wheels of smaller diameter than the wheels of the motorized truck which enables a lowering of all of the floor area of the vehicle except the portion which lies above the motorized truck. This lowering of the floor permits the use of a single intermediate step to be utilized by passengers and expedites their entry into and exit from the vehicle.