Abstract:
A lighting system for aircraft landing surfaces, including a plurality of electric lighting elements arranged in an orderly sequence to help to form on the surface a predetermined symbol, visible from the aircraft during landing, at least one branch box for accessing the electricity network, the sequence of the lighting elements forming a chain.
Abstract:
Described is a device for introducing an air flow (F) into a submarine (1), comprising a first duct (3) which is fixed relative to the hull of the submarine and a second duct (4) which is telescopically movable relative to the first duct (3), for emerging from the water with its upper end (4a) and allowing the air above to be sucked in while the submarine (1) is running at periscope depth, the first and second ducts (3, 4) being in fluid connection with air sucking means and being at least partly housed in a tower (5) of the submarine.
Abstract:
A movement system for submarine-atmospheric interface devices comprises fixed guides (4) integrally connected to a conning tower (103) of a submarine (100), a lifting apparatus (1) slidable in the fixed guides (4), at least one electric motor (5) for driving the lifting apparatus (1) and a motion transmission mechanism (6) whereby motion is transmitted from the electric motor (5) to the lifting apparatus (1) and comprising flexible transmission means (7).
Abstract:
A surface mounting lamp comprises a covering element (3) made of a transparent material and having a first face (3a), which in use is directed outwards away from a mounting surface of the lamp, and a second face (3b) opposite the first face (3a) and provided with at least one socket for housing lighting elements (2a), at least one lighting unit (2) sealably connected to the covering element (3) and facing the inside of the socket. The unit (2) is equipped with a plurality of lighting elements (2a), each housed in the socket. The lamp also comprises at least one junction piece (8) connected to the covering element (3) and equipped with a connecting portion (8a) which can be engaged with the mounting surface of the lamp in order to fix the position thereof, and retaining means interposed between the junction piece (8) and the second face (3b) of the covering element (3) and operating in such a way as to connect the covering element (3) to the junction piece (8).
Abstract:
Device for moving in the longitudinal direction (X-X) a shaft (120;1120;2120) with screw (121) rotationally driven by a motor (140;2140), comprising at least one cylinder (100;1100;2100) coaxial with said shaft (120;1120;2120) and provided with at least one rotating piston (131;1131;2131) rigidly connected to the shaft (120;1120;2120) and able to produce a displacement in either direction of the shaft (120;1120;2120) from a first retracted end-of-travel position into a second advanced end-of-travel position, and vice versa.
Abstract:
Apparatus for determining the operating parameters of a variable-volume hydraulic engine comprising a plurality of propulsion members (10) oscillating about a respective centre of oscillation (Cn) and a spherical body (6) associated with the driving shaft (7) and movable eccentrically (E) with respect to the centre of rotation (O) of the latter, and comprising at least two devices (50;150) each of which is respectively arranged on an associated propulsion member (10) and is designed to detect a parameter able to allow determination of the position of the point of eccentricity (E) of the driving shaft (7) with respect to the centre of rotation (O) of the driving shaft and the centres of oscillation (C1,C2) of said propulsion members (10), and a data processing unit (1000) able to store the data detected and perform the necessary calculation.