Improvements introduced in the autonomous units of torque for the operation of doors with one and two leaves. (Machine-translation by Google Translate, not legally binding)

摘要

Improvements introduced in the autonomous torque units for the operation of one- and two-leaf tilting doors, characterized by the special arrangement of a compact centralizing unit of the hydraulic impulse elements necessary to generate an alternative rotary movement that will be used to provoke the elevation and descending the door, said unit being provided with the necessary safety and end-of-stroke devices to stop the operating cycle at the moment when an obstacle arises, being ready for the continuation or beginning of a new cycle, also possessing the characteristic that the unit will remain under pressure when the door is closed, so that it will be impossible to raise it accidentally, while in the case of a power failure it can be manually operated after opening the valve to the effect provided. (Machine-translation by Google Translate, not legally binding)