Abstract: A hydraulic device having two hydraulic actuators, in particular a motor and a double-acting jack, each having two couplings for the entry and/or the exit of a control fluid. Two pipes are coupled to the two actuators and designed so that one conveys a pressurized fluid to a respective coupling of each actuator while the other discharges the fluid to the other respective coupling, and vice versa, in such a way that the jack can be controlled to selectively produce a movement in opposite directions. A selective reversing gate reverses, between the two pipes, the supplying of pressurized fluid and the discharging of the fluid so as to control the direction of the movement of the jack.

Abstract: Hydraulic device comprising two hydraulic actuators (1, 2), in particular a motor (2) and a double-acting jack (1), each comprising two couplings (1a, 1b, 2a, 2b) for the entry and/or the exit of a control fluid, two pipes (6, 7) coupled to the two actuators (1, 2) and devised so that one conveys a pressurized fluid to a coupling of each actuator whilst the other discharges the fluid to the other coupling, and vice versa, in such a way that the jack (1) can be controlled in respect of [lacuna] a movement in one direction and in the reverse direction, and a reversing gate for reversing between the two pipes (6, 7) the supplying of pressurized fluid and the discharging of the fluid, so as to control the direction of the movement of the said jack (1), the device furthermore comprising: a means of detection (8) of a difference in pressure between the pressurized fluid and the discharged fluid, and between the reversing gate and the other actuator (2), an auxiliary reversing means (9), devised so as to r