Abstract: The invention relates to a lifting system for the transport of persons and for the movement of goods, with a traction unit (G) for a cage or goods hoist (10) provided with relative guides (18, 20), vertically movable inside a vertical run space (12) of a building between areas with a given height difference and provided with a bottom, side walls, a roof and mobile cage doors, in particular an electric wire rope elevator, with traction unit inside said vertical run space of the type called MRL (Machine Room Less), comprising a load supporting frame (14) and relative snub pulleys (28, 30), a moving counterweight (16) with relative guides (22, 24) and a snub pulley of the counterweight (32).

Abstract: A lift system with reduced power includes a car running inside a special lift-shaft, and at least a drive unit which allows the raising and the lowering of the car, with the drive unit having at least two power systems, and with the car including a sensor system to detect the load in the car in order to switch the drive unit of the lift system to one of the power systems.

Abstract: Hydraulic elevator system with a hydraulic actuator equipped with a piston, movable in both directions, to raise and lower a cab, a tank of hydraulic fluid and a pump for fluid, a bypass shutter, to control ascent of the piston, and a down shutter to control its descent, a microprocessor for controlling the valves. To compensate variations in load, temperature and pressure of the hydraulic fluid, solenoid valves are provided, driving the shutters, with on/off pulses of variable duration, depending on the information on the behavior and conditions of the system, obtained by feedback of pressure and temperature of the hydraulic fluid and the position and velocity of the elevator car.