Abstract: An internal-combustion engine (1) with improved reciprocating operation comprises at least one hollow cylinder (C), which contains a chamber for the evolution of a working fluid and has one end closed by a head and the opposite end closed by a piston (2) which can slide with a reciprocating rectilinear motion between a bottom dead center (BDC) and a top dead center (TDC), and a device (3) for converting the reciprocating rectilinear motion of the piston (2) into a rotary motion of an engine shaft (4) which comprises a push rod (5), which is substantially perpendicular to the engine shaft (4) and in which a first end (5a) is connected to the piston (2) and a second end (5b) is connected to at least one pin (13) for supporting at least one pusher roller (7) and at least one return roller (8), which rotate in mutually opposite directions, a rotating contoured body (9), which is fixed to the engine shaft (4) and is provided with at least one pusher circuit (10) and at least one return circuit (11), along which th

Abstract: The reciprocating internal-combustion engine comprises at least one hollow cylinder, with a chamber inside a working fluid, the chamber has an end closed by a head and an opposite end closed by a piston that reciprocates by rectilinear motion in the chamber between a bottom dead center and a top dead center, and a device for converting the reciprocating rectilinear motion into a rotary motion of a driving shaft. The conversion device comprises at least one push rod substantially perpendicular to the shaft with a first end associated with the piston and a second end provided with pusher elements, and at least one contoured eccentric element keyed on the shaft on which a circuit element is provided which is crossed by the pusher elements and adjustment elements for adjusting sliding of the pusher elements along the circuit element so as to keep the rod and the piston in a substantially stationary configuration for a presettable rotation angle of the driving shaft.

Abstract: The reciprocating internal-combustion engine comprises at least one hollow cylinder, with a chamber inside a working fluid, the chamber has an end closed by a head and an opposite end closed by a piston that reciprocates by rectilinear motion in the chamber between a bottom dead center and a top dead center, and a device for converting the reciprocating rectilinear motion into a rotary motion of a driving shaft. The conversion device comprises at least one push rod substantially perpendicular to the shaft with a first end associated with the piston and a second end provided with pusher elements, and at least one contoured eccentric element keyed on the shaft on which a circuit element is provided which is crossed by the pusher elements and adjustment elements for adjusting sliding of the pusher elements along the circuit element so as to keep the rod and the piston in a substantially stationary configuration for a presettable rotation angle of the driving shaft.

Abstract: A universal traversing assembly for legs of cranes or the like comprises: a platform provided with a series of driving wheels and supporting wheels which are aligned and are adapted to roll on a long underlying rail for the traversing motion of the leg; a box-like tunnel which rests on the ground, is open in an upward region, and has a portion of the rail fixed to its base; at least one pair of idler wheels, which are freely mounted on the platform, are mutually coaxial and are arranged below a pair of upper guides which are fixed on the tunnel at the upper opening; a rack which is fixed to the side of the rail portion and is adapted to mesh with pinions which are rigidly coupled and coaxial with respect to the driving wheels; at least one motorization unit which is rigidly coupled to the platform and is coupled to at least one of the driving wheels and pinions; at least one stabilizer which comprises at least one ground resting foot which has an adequate surface, can slide vertically and is adapted to move f

Abstract: An internal-combustion engine with improved reciprocating action comprises at least one hollow cylinder inside which there is provided a chamber for the activity of a working fluid, the cylinder having an end which is closed by a head provided with intake and exhaust valves for the fluid and an opposite end which is closed by a piston which can slide with a reciprocating rectilinear motion in the chamber, and a device for converting the reciprocating rectilinear motion of the piston into a rotary motion of an engine shaft which is constituted by at least one pusher rod which is substantially perpendicular to the longitudinal axis of the engine shaft and has a first end which is associated with the piston and a second end which is provided with pusher elements, and by at least one shaped eccentric element which is keyed on the shaft and on which there is provided a circuit element whose path can be traced by the pusher elements which are mechanically coupled thereto, the activity of the fluid in the chamber be

Abstract: The plant is mainly designed to increase the productivity of freight handling operations--for instance containers, in any kind of depot--to simplify the engineering works supporting the mobile crane (1) having a transversal boom (2), to eliminate stressing working conditions for the operator of the mobile crane (1) and to make essentially automatic the freight handling operations; the mobile crane (1) runs on a track (11) placed at the top of a fixed longitudinal frame (10) having stanchions (20) which transmit the loads to the ground at fixed positions constituted advantageously by foundation plinths (21) on piles (22); the cabin (12) is independent of the upper trolley (3) of the mobile crane (1); an intermediate trolley (13) receives the containers (7) from a shuttle trolley running longitudinally on a shelf (9) of the frame (10) and transfers them onto lorries (16) and trolleys (17, 162) of a conveyor ring (18, 154) of the depot assisted by bridge cranes; in maritime depots, the hold covers of ships may b