Abstract: A rhythm device section is controlled by a controller, which controls the travelling time of the carriage in terms of the delay or advance and repositions the carriage correctly with respect to a periodic signal synchronized with the cable. The controller in addition detects successive identical deviations and in this case triggers dephasing of the periodic signal so as to rephase it with the passing of the carriages.

Abstract: The towers (12, 14) of an aerial cable (16) transport installation lean towards one another to reduce their height. Guying cables (48) hold the towers (12, 14).

Abstract: A technique for driving with continuous synchronized movement a plurality of parallel pulling cables of a transportation installation in a direction parallel to the cables comprising at least one vehicle connected in line to the cables. Each cable is driven by a separate independent drive device powered by a dedicated power source. Drive forces in each drive device are monitored and used to control the drive device speed of at least one drive device so as to maintain equal cable speeds.

Abstract: A terminal station of an aerial rope transport installation is equipped with a generator (26) of a high-frequency signal modulated in amplitude by the information to be transmitted. This generator (26) is coupled to the looped rope (10) by a transformer (30) which induces a current in the looped rope forming the secondary winding. The cars (20) are equipped with an autonomous receiver (48) which detects the magnetic field generated by the current induced in the looped rope and restores the information transmitted by the rope.

Abstract: A parking track of a gondola lift or chair-lift comprises straight sections and curved sections and chains for driving cars on this track. On the straight sections the cars follow one another closely or almost touching and on the curved sections with a greater clearance sufficient to pass without the risk of one another colliding.

Abstract: The opening and closing control system of a protective hood of a chair of a chair-lift comprises spring or gravity energy storage devices, to move the hood independently from the speed of the chair. The energy storage device is reloaded when the chair passes through the terminal and catches lock the hood in different positions. These catches are automatically controlled when the chair passes predetermined locations to achieve automatic control of opening and closing of the hood.

Abstract: An aerial ropeway transport installation comprises cars coupled to the rope by detachable grips. On the line the cars run in groups but are widely spaced in order to spread the load. In the terminal the cars are uncoupled from the rope at a corresponding location of a platform by an individual control device, the cars of any one group stopping one behind the other. The rope speed is temporarily slowed down or stopped during each detachment and/or attachment operation.

Abstract: A preferred embodiment for a detechable gondola lift is disclosed in which carraiges on a closed circuit are detached from the circuit upon entering an end station and coupled to a semi-circular section before being recoupled onto the circuit upon exiting the end station. The semi-circular section has a drive wheel with a first drive mechanism on its periphery for driving the carriages over the semi-circular section. The first drive mechanism is located at regular intervals and driven at a predetermined first speed to impose a regular flow rate to the carriages leaving the semi-circular section and a regular distribution of carriages on the circuit. The semi-circular section also includes a second drive mechanism for imparting a slightly different speed to the carriages from that imposed by the drive wheel. One of the drive means has priority to impose a predetermined flow rate to the carriages leaving the semi-circular section.

Abstract: A safety line 20 of an aerial ropeway transport installation 10 comprises in one of the stations a safety generating unit 22, which emits a square wave AC signal on the line.In the opposite station the line 20 is earthed by means of a diode 24. The safety generating unit 22 includes a measuring device of the positive and negative voltages at the line terminals to distinguish between a line break and a line short-circuit.A localizer indicates the location of the fault.

Abstract: A mechanism for opening, closing and locking doors with two leaves for cable cars, wherein the two leaves of a car door are controlled at the top and the bottom by a crank lever integral with a control piece movable horizontally in the vertical plane of symmetry of the two door leaves. Each crank lever acts on a horizontal toggle joint with dead point clearance whose links are pivotally secured respectively to levers rotating about fixed vertical axes forming the axes of rotation of the two door leaves, said levers being connected respectively to the radial arms of the door leaves by resilient connections providing locked closure of the leaves even if one of them is held slightly open.

Abstract: A detachable gondola lift or chair-lift is disclosed which includes several sections which can operate independently from one another. Two sections are connected in an intermediate station by connecting tracks to transfer cars from one section to the other. Each section is equipped with a chain to drive the cars on the transfer rails. Each section is also fitted with flowrate regulators. When the two sections are joined, an adjustment device adjusts the chain of one of the sections in relation to the chain of the other section to achieve a regular transfer of the cars from one section to the other without intermediate storage.

Abstract: Aerial chairlift comprising at the loading station two separate loading areas spaced apart along the travel path of the chairs. Each loading area comprises separate lanes for queuing skiers normally closed by gates. A traffic control system for controlling boarding of the chairlift is actuated by the arrival of chairs at a predetermined location for causing alternate opening of the gates so that the successive chairs are loaded at separate loading areas.

Abstract: The invention relates to a detachable grip chairlift or gondola lift terminal having a transfer rail extending between the downhill run and the uphill run of the cable. The chair trucks run at slow speed along the transfer rail which comprises a movable rail section extending along the loading and/or unloading area. The level of the movable rail section may be adapted in accordance with the snow level on this area for properly positioning the chairs.

Abstract: A detachable chair or gondola lift is disclosed wherein an alternator is driven by a rope bull-wheel. The alternator supplies a synchronous motor for driving friction wheels or other mechanisms for driving the cars in an end station of the chair or gondola lift. The electrical connection between the alternator and the synchronous motor ensures synchronous rotation of the motor. The alternator can be connected to the bull-wheel by a multiplier gear, the bull-wheel being either a tension bull-wheel or a driving bull-wheel. In the case of a tension bull-wheel, the alternator is mounted on the bull-wheel support carriage to avoid a flexible mechanical transmission. The alternator can be coupled to the high speed shaft of a driving bull-wheel reducer gear, for example, by a trapizoidal belt transmission. At low speed, the excitation of the alternator is increased to preserve the synchronism of the movements.

Abstract: A cabin of an aerial cableway having a generally square shape and at least a door opening on the whole lateral wall. The door comprises two panels adapted to abut one another for closing the door opening and to move symmetrically away along a curved path towards the open position. In the open position each panel covers one half face of the end wall. An actuating mechanism includes link rods secured to the roof and to the floor of the cabin for guiding and moving symmetrically the door panels.

Abstract: Gondola lift or chairlift with carriages supporting a gondola or a chair and having a grip for coupling on a continuously moving cable. In the terminals the carriages uncoupled from the cable run without stopping on a transfer rail. The carriages are regularly spaced and the transfer rail comprises a rail section equipped with a rhythm device which controls the release of the carriages at regular time intervals.

Abstract: Monitoring of the clamping of the grips 10 of a detachable gondola lift or chair lift is carried out when the grip passes on a ramp 18 constituted by a T-shaped section. Over a measurement section 1, the base 24 of the T is separated from the upright 26 by a notch 28 to give the base 24 a certain flexibility. The deformation of the base 24, due to the action of the grip operating lever, is measured by a proximity detector 34, which delivers a signal analyzed by an electronic circuit compensating for any drift which may occur. As a result, the invention can be applied to measure the clamping of moving vehicles in general.

Abstract: Chairlift or gondola lift with a carriage supporting a gondola or a chair and having a detachable grip for coupling on a continuously moving cable. In the terminals the carriage is uncoupled from the cable and it runs on a transfer rail. This transfer rail is equipped with friction drive wheels disposed along the carriage travel path for engaging the friction face of a running plate rigidly secured to the carriage so as to brake, accelerate or drive the carriage on the rail. During the night or bad weather periods a cover plate covers the friction face of the carriages disposed on the line and this cover plate is raised away in the terminals to clear the friction face. For removing the snow or ice which covers the friction face and hinders the correct friction drive of the carriage a brushing or rubbing device may be disposed along the carriage travel path so as to brush the friction face.

Abstract: Aerial monocable chairlift or gondola lift having detachable grips for coupling the chairs or gondolas to the continuously moving cable. Each grip, in the form of a plier, has a pair of jaws, the outer profile of the jaws being so designed that the grip passes on support sheaves, hold down sheaves and horizontal wheels in the station. The clamping coil spring is inserted between the ends of the plier levers and extends substantially parallel to the hanger bar articulated on the grip body. A grip operating roller opens the jaws at a platform in the station and the speed of the chair is reduced for loading and/or unloading of the passengers before the grip is again coupled to the cable.

Abstract: This suspension device for the car of a ropeway comprises a pneumatic balloon tire interposed between the bottom of a carrying strap suspended from the wire rope of the ropeway and an upper frame of the car framework which bears upon the tire.