Abstract: A retractable, concealable peripheric gas station for refuelling in particular military vehicles, which is connected to a main station supplying it both with fuel and hydraulic fluid and has an outer metal tank (10) closed by an upper cover (11) hinged thereto, a metal frame (14) hinged under the cover so as to pivot between a lowered rest position and a raised operating position, a take-up reel (15) for a hose supplying fuel, and a hydraulic assembly (24) operating between the frame and the tank under control of the oleodynamic main station which causes the frame to pivot between the lowered and raised positions.

Abstract: A fuel delivery system for refuelling airplanes comprising a delivery station mounted on an airplane refuelling tank-vehicle and movable from a rest position wherein it is completely received within a suitable, practically inaccessible housing formed on the tank to an operative position wherein it is completely outside the housing and perfectly accessible to the operator who is carrying out the refuelling, operation; the supporting frame of the system, which is of a simple and solid construction is controlled to move from the one position to the other preferably through hydraulic mechanical means.

Abstract: A refuelling unit for aircraft is moveable from a lower position completely hidden in a below-ground cavity to an operating position above ground. The unit has a sliding cover and means are provided for holding a vertically movable platform in intermediate position between the fully raised and lowered positions.

Abstract: A unit for connecting a stationary source of a fluid under pressure through a delivery apparatus vertically movable in respect thereto is disclosed. The system is especially suitable for supplying fuel under high pressure to an airplane refuelling hose.