An overhead installation for transporting people in an urban environment includes two carrying cables, which sag in curved manner and are spaced apart from one another, on which the rollers of the vehicle without a hanger arm run. Jacks with vertical displacement, controlled by a central unit, are p
An overhead installation for transporting people in an urban environment includes two carrying cables, which sag in curved manner and are spaced apart from one another, on which the rollers of the vehicle without a hanger arm run. Jacks with vertical displacement, controlled by a central unit, are placed in the connection between the rollers and the vehicle so as to reduce transmission of undesirable movements, resulting from the sag of the cables, to the car of the vehicle.
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1. An overhead installation for transporting people, comprising two overhead carrying cables spaced apart from one another, extending in parallel manner on the same level, being stretched taut between two pillars to form a curved running track presenting a deformable sag, and a positively guided, se
1. An overhead installation for transporting people, comprising two overhead carrying cables spaced apart from one another, extending in parallel manner on the same level, being stretched taut between two pillars to form a curved running track presenting a deformable sag, and a positively guided, servo-controlled vehicle comprising a passenger compartment, four rollers arranged in the form of a rectangle, with two rollers longitudinally spaced apart from one another running on one of the cables, and two rollers longitudinally spaced apart from one another running on the other cable, to support and guide the passenger compartment of the vehicle running on the curved track, and a connecting device without a hanger arm between the rollers and the passenger compartment to position the passenger compartment longitudinally and transversely, wherein the four rollers follow the height variations of the cable in space independently, during movement of the vehicle, said connecting device comprising an individual positive height-adjustable jack for each roller, and the vehicle comprising a central unit which controls the different individual jacks so as to compensate the height variations of the different rollers, imposed by the cables, during movement on the curved track. 2. The installation according to claim 1, wherein the vehicle comprises a device for measuring the incline of the passenger compartment which controls the central unit, and the central unit controls the jacks to keep the passenger compartment horizontal. 3. The installation according to claim 1, wherein the cables are located underneath the vehicle, and the vehicle runs above the cables and comprises a detector of transverse rocking of the vehicle which controls the central unit so as to prevent any excessive transverse rocking and any sideways toppling of the vehicle. 4. The installation according to claim 3, comprising a hauling cable, underneath the vehicle, fitted between the carrying cables and a clamp for coupling to the cable fixed underneath the vehicle. 5. Installation according to claim 4, wherein the clamp for coupling to the hauling cable is retractable after it has been uncoupled from the hauling cable. 6. The installation according to claim 1, wherein the four rollers and the four associated jacks are located at the four corners of the passenger compartment, and the four jacks present a vertical displacement controlled by the central unit. 7. The installation according to claim 6, wherein the jacks are fitted between the bottom of the passenger compartment and the floor supporting the passengers. 8. The installation according to claim 1, wherein each carrying cable is doubled up into a pair of identical, juxtaposed carrying cables of reduced cross-section, extending in parallel manner to one another and subjected to the same tension, and each roller is also doubled up into a pair of rollers, the rollers of one and the same pair running on the cables of one and the same pair being fitted on the same spindle so that one of the rollers supports the vehicle in the case of malfunctioning of the other roller. 9. The installation according to claim 8, wherein each track constituted by the juxtaposed carrying cables is connected to a track with fixed rails, each rail extending one of the cables with a gap between the end of the cable and that of the rail, and the gaps are longitudinally staggered with respect to one another. 10. The installation according to claim 1, wherein the vehicle comprises a device for measuring the vertical acceleration which controls the central unit to command a reduction of the length of the jacks when an ascending vertical acceleration takes place, and to subsequently command an elongation when a descending vertical acceleration takes place, in particular after having passed over the pillar. 11. The installation according to claim 1, wherein a detector, placed at a specific point up-line from the pillar, receives specific information conditioning the vertical acceleration when passing over the pillar, from an emitter carried by the vehicle, when passing this point, the information being transmitted by the detector to the central unit which controls the jacks to reduce the vertical acceleration. 12. The installation according to claim 1, wherein the vehicle comprises a detector of the variation of the height of the vehicle which controls the central unit, which unit commands the individual jacks simultaneously and by the same value to keep the level of the vehicle constant in particular when passing over the pillars. 13. The installation according to claim 1, wherein the vehicle comprises rollers fixed to a chassis and the jacks associated with each roller are fitted between the chassis and the passenger compartment. 14. The installation according to claim 1, wherein the vehicle comprises one or more electric motors driving one or more rollers.
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