A device for operating at a distance of safety devices, such as dampers - fire, hatches smoke removal

摘要

P & this device is intended for the automatic operation of safety devices, such as: dampers -, - flame arrester valves, hatches smoke removal, etc, formed by a movable partition, whose position can be modified by the action of gravity, of a spring or other means, triggered at the end of an external control. / p & & p & according to the invention, this device comprises a motor system normally exerted traction or a permanent thrust on an element integral with the movable diaphragm to maintain that - latter in the waiting position, and continues to exert traction or thrust in order to enable the moving partition to come into position. / p & & p & the invention applies equally well to the operation of valves that of pivoting shutters. / p