Abstract: Hinge for the mutual engagement of panels composed of two opposed wing-like elements (1, 2), each of them including a basic body provided with through-holes for housing fixing screws to a panel and with engagement means with the wing-like complementary element provided at a lateral end of said basic body, at the end of the mutual engagement area locking means (3) for engagement of one wing with respect to the other are provided, characterized in that the former of said wing-like elements (1) includes a basic body (14), having a rectangular trapezium profile, the end opposite to the vertical side of which being rounded in order to house a round-profiled cavity (15) therein; the latter of said wing-like elements (2) in turn includes a basic body (23) having a partially polygonal and partially rounded profile at the engagement end with the complementary wing-like elements (1), said rounded portion making up a cylindrical body that about halfway through along its height tapers to form a pin (23); the locking elem

Abstract: A hinge of the type including two coaxial, overlapping constitutive wings, each of the constitutive wings being constituted by a body having an ogive profile in which a cavity is internally obtained, wherein one of the constitutive wings carries a pin of smaller diameter in a stable engagement inside the cavity, surrounded by a spring, the pivot and the spring being suitable for engagement with the cavity of the other constituent wing, the coaxial constituent wings having on the base surface of the internal cavity a tangential groove for housing the terminal appendage of the spring.

Abstract: Hinge for moving a door with respect to a stationary wall characterized in that it is composed of two opposing wings provided with through fixing holes and provided with a mutual engagement area, the mutual engagement area including shaped and complementary bushings protruding from one of the walls of each of the wings, the bushings housing, respectively a matching and friction system composed of a wedge-shaped matching element and a bushing-shaped matching element opposed to each other, kept in mutual connection by a screw-nut system.

Abstract: Hinge for the mutual engagement of panels composed of two opposed wing-like elements (1, 2), each of them including a basic body provided with through-holes for housing fixing screws to a panel and with engagement means with the wing-like complementary element provided at a lateral end of said basic body, at the end of the mutual engagement area locking means (3) for engagement of one wing with respect to the other are provided, characterized in that the former of said wing-like means (1) includes a basic body (14), having a rectangular trapezium profile, the end opposite to the vertical side of which being rounded in order to house a round-profiled cavity (15) therein; the latter of said wing-like means (2) in turn includes a basic body (23) having a partially polygonal and partially rounded profile at the engagement end with the complementary wing-like means (1), said rounded portion making up a cylindrical body that about halfway through along its height tapers to form a pin (23); the locking element (3) p

Abstract: The application relates to a venting cap for oil tanks of machines and machinery, including: a cup fitted with a flange along its outer surface, with this flange bearing coupling elements underneath it with complementary elements provided on the access sleeve of the tanks and at the top of shaped engagement tabs, a lid for closing the cup that is snap-fitted onto the cup, fitted with a flange, wherein: the flanged partition houses on its lower surface an insert with a substantially cylindrical profile, the cup body is associated with a spiral labyrinth on top of which is fitted the means for engaging the cup; and above the flange of the cup there is a collar fitted with an external toroidal groove that engages with a raised toroidal thread along the inner surface of an upper closing lid of the cup.

Abstract: Locking device for the opening of a door including two opposite members apt to be mounted to a door and to a post, respectively, and provided with housing holes of screws for the engagement with a surface, one of the bodies including a solid body except for a cavity provided on one of the side walls, the other one of the bodies including an outside shell internally provided with a housing cavity of a sliding body, characterised in that a lock block for the movement of the sliding body is furthermore provided, housed within a cavity provided on the top surface of the outer shell as well as dampening and thrust structure of the sliding body.