Abstract: Mechanism for the vertical translation of tubular structures for underwater vessels of the type constituted by a rectilinear guide (2) with closed section that is vertically fastened to the sail (3) of the underwater vessel, by a barrel (4) translating vertically inside said guide (2) and bearing at its upper end a sensor and by a device for the vertical actuation of said barrel (4), said guide (2) being constituted by a flattened upright (7) which along its flanks has, integral therewith, two sliding ways opened towards each other and it has its edges secured by a rugged and simple stiffening element (13) constituted by a “U” shaped structure and that said barrel (4) in proximity to the lower end is provided with two supports (14a), (14b) bearing shoes (16) for sliding along said ways, said barrel (4) being secured to said supports (14a), (14b) by the casting of an appropriate hardening plastic material.

Abstract: Apparatus for gripping, raising, orienting and transporting helicopters (102) in particular on decks (101a) of ships (101) provided with longitudinal rails (2) for guiding and constraining the apparatus, which comprises a cross-beam (1) movable in engagement on said rails (2) in a direction parallel to the longitudinal axis (X-X) of the ship, said cross-beam (1) having, mounted on it, a carriage (4) movable parallel to the cross-beam itself (1) and having, hinged with it, an arm (5) at the opposite ends of which the devices (7,8,8e) for gripping and raising the main wheels (102a) of the helicopter (102) are mounted.

Abstract: Apparatus for gripping, raising, orienting and transporting helicopters (2) in specially prepared areas or zones in particular on decks (1a) of ships (1), comprising a cross-piece (6) movable in a direction parallel to the longitudinal axis (X--X) of the ship in engagement with said rail (4), wherein the transverse arm (6b) of said cross-piece (6) has joined to it a substantially L-shaped frame (7; 107) and smaller arm (7a) movable relative to the cross-piece (6) in a transverse direction with respect to the longitudinal axis (X--X) itself through the action of associated actuating means (7c), the free end of said longitudinal arm (7a) of the frame (7) having rotationally attached to it a transverse member (9; 109) carrying at its opposite ends the devices (10) for gripping the main wheels of the helicopter (2).

Abstract: A device for gripping, guiding and moving wheeled-type helicopters, particularly on board ships, platforms and the like, comprising a pair of crossmembers (6) located parallel to longitudinal axis (X--X) of the vessel and capable of moving transversally to such axis, in engagement with corresponding means of transverse guidance (2) integral with the ship's deck (3), each under the action of appropriate means of operation (7,8a, 8'a), independent of one another, and of further means of movement (12, 13) parallel to the longitudinal axis of the vessel, in engagement with corresponding longitudinal means of guidance (1), there being also provided a gripping and lifting arrangement (10,100) integral with each crossmember (6) and capable of moving in relation to the latter in order to grip, lift and guide the helicopter after landing, irrespective of its relative position with respect to deck (3) and its orientation with respect to longitudinal axis (X--X) of the vessel, and to position it in alignment with at lea

Abstract: A modular structure for supporting and guiding tubes slidable in the vertical direction and carrying sensing, reconnaissance and transmission equipment for submarine towers, a frame formed by uprights and walls, which are longitudinal and transverse defining vertical compartments inside which the tubes supporting the equipment are slidable. The frame is secured to only the hull of the submarine via horizontal base elements which are integral with the bottom ends of the uprights and can be secured to corresponding flanges fixed to the hull of the submarine.

Abstract: A positive-action device for bringing about the rotary movement of a hatch, as a result of the traversing stroke of a shaft moving axially within a fixed structure, particularly in submarine turrets, includes an actuating component integral with shaft and moving with the latter in a direction parallel to the longitudinal axis of the shaft, and an articulated kinematic mechanism the upper end of which is hinged to hatch with an interposed flexible safety device and the lower end of which is rotationally integral with a regulating component rotating around the axis of a fixed pivot, there being associated with the regulating component a mechanism of bistable type for reliably maintaining the settings corresponding to the open and closed positions of the hatch, and end-of-stroke devices.

Abstract: A machine for gripping and handling underwater vehicles and the like includes a gripping device provided with a guiding member made integral at its upper end, an articulated member connected with a rod sliding inside a guide attached to a free end of a jib of the crane and with floats capable of maintaining the guiding member raised above the water in a preset position of the rod relative to the guide controlled by a sensor imparting movement to the jibs of the crane in order to maintain the gripping device in vertical position relative to the ship.

Abstract: The invention relates to a hydraulic motor of the type comprising a plurality of cylinder-piston units arranged radially about an eccentric cam made rotatively rigid with a rotating shaft. The cam has a pair of shoes which project axially from opposite sides thereof and engage in guides formed diametrically in a pivotable support and on a rotating shaft, respectively. The shoes engage with such guides to allow for a radial displacement of the cam and provide a rotary connection of the latter to the rotating shaft. The shoes have respective cylindrical cavities formed internally in perpendicular directions to the shaft axis of rotation, cavities which accommodate small pistons whose rods are stationary relatively to the rotating shaft.

Abstract: The device is comprised of an auxiliary annular element concentrically mounted on each piston end facing the spherical surface of the rotor. Each piston end is provided with an annular shoulder bearing against a matching annular shoulder formed on the inner periphery of the circular aperture through which the auxiliary annular element is mounted on the piston end. The same auxiliary annular element is also provided with oppositely disposed lateral flanges, in a position corresponding to the sides of the rotor, each having a respective recess which is open in the axial direction opposite to the corresponding side of the rotor and extending in the circumferential direction in an arc of a circle concentric with the rotor. Coupling rings disposed at the sides of the rotor, concentrically therewith, engage said recesses to hold the piston end in contact with the spherical surface of the rotor.