Abstract:
A magnetic device (11) for a furnace (1) containing molten metal such as aluminum or the like, said furnace comprising a hollow body (2) with lateral walls (3) and a bottom wall (4), said furnace (1) being covered with refractory material and having a portion (6) thereof normally present on the bottom wall or in one of such walls (3, 4) which is made of metal permeable to the magnetic fields and covered with refractory layer, the device (11) acting as magnetic stirrer for the metal placed in the furnace being present at such wall portion (6), said device (11) being movable frontally and along such portion (6) permeable to the magnetic fields and comprising rotating magnetic field generator means adapted to generate a magnetic flux within the metal placed in the body of the furnace (1), said generator means (13) also preferably translating in front of said wall portion (6) along predefined guides (19). Such generator means are constituted by a plurality of permanent magnets (15) carried by a load-bearing member (13) rotating around an axis (M, 57) thereof during said rotation and/or translation. A furnace with such stirrer device is also described and claimed.
Abstract:
A magnetic induction furnace (1) suitable to heat metal billets (2), solid or tubular, made of non-ferrous material to be subjected to extrusion comprises a heating part (6) in which there is present at least one heating section (25) comprising at least one coaxial annular electric motor (250) having a fixed stator (33) and a permanent magnet rotor (34) mobile in said stator (33), and an annular rotor (40) carrying a plurality of permanent magnets, said annular rotor (40) being coaxial to said stator (33) and rotor (34) of the electric motor (250) and defining a compartment (27) with vertical axis (W) with respect to a plane (P) on which the furnace (1) lies, and suitable to contain at least one billet (2) suitable to be heated, by magnetic induction, through the movement of the annular rotor (40) contained in the rotor (34) of the coaxial motor (250). The billet (2) is completely stationary when inserted into the aforementioned compartment (27) and remains therein in this state during the entire heating operation.
Abstract:
An apparatus (10) for feeding and packaging elongated fruits and vegetable products like carrots, courgettes, and the like in crates (48), comprising a frame (12) supporting a turntable or carrousel (14) arranged with a vertical axis of rotation and on which there are secured pairs of facing roller conveyors (20) diametrically opposed to each other and provided with a plurality of rotational idle rollers (24), each roller conveyor being suitable for supporting a crate (48) for containing fruits and vegetable products, a piling-up and feeding device (16) suitable for piling-up the fruits and vegetable products to be fed into the crate (48), an ejection device (18) suitable for unloading a crate (48) filled up with the fruits and vegetable products, said apparatus comprising mechanical means suitable for constraining said crates (48) with respect to said roller conveyors (20) and mechanical calibration means for calibrating the fruits and vegetable products in the piling-up and feeding device (16).
Abstract:
A boat (1) comprises a hull (2) provided with a rear stern hatch (3) located in correspondence with an internal stern compartment (4) of said hull (2) and suitable for opening and closing in correspondence with an aperture (5) of said compartment, said hatch (3) having a body (20) with opposed sides (12, 13) located in correspondence with side walls of said compartment and upper edge (14) and lower edge (15), said hull having a stern platform (21A) that is movable and submersible. The hatch (3) is not provided with any direct connections to the hull, but it is connected to the stern platform so as to reach, upon opening, a position submersed in the water where the boat is located in the moment when said platform submerges into said water.
Abstract:
Herein described are a method and a system for managing and controlling the feeding of at least one thread to a textile machine (2) as a function of the operating step of the latter in the production of a product or in the processing of such thread, such production or processing providing for a succession of said steps corresponding to the obtainment of various parts of the same product or different treatments of such thread, the latter being fed to said machine by a corresponding feeder device (1) at a constant tension and/or speed and/or controlled by a sensor (100) which monitors the sliding or any of the inherent characteristics thereof such as tension, speed, diameter, quantity and color, said sensor (100) and/or feeder being controlled by setting and control means (3) which set the operation thereof, said setting and control means (3) receiving synchronization signals from the machine (2) and detecting - according to the latter - the aforementioned operating steps and thus the processing progress status of a product or production process, said setting of the operation being programmed as a function of said operating steps. A unique synchronization signal is generated by the textile machine, for each particular operating step of the machine, independently from the length of such step.
Abstract:
An element (1) for the ventilation of a housing containing an electrical, electronic, mechanical, electromechanical or similar device such as a headlamp of a motor vehicle, comprising a rigid body (2) having an outer cylindrical wall (3), closed off at a first extremity (4) by a closing part (5), said cylindrical wall (3) being open at a second extremity (7) attached to the housing, the body (2) comprising an inner member (15) of an at least partly yielding material having a first extremity (14) close to the closing part (5) of the rigid body (2) and bearing a filtering membrane (25), and a second open extremity (17) facing said housing; between the filtering membrane (25) or the first extremity (14) of said inner member (15) and the closing part (5) of the rigid body (2) there is a distance (D) of between 1 and 4 mm, means (50; 60, 22) for securing insertion of said inner member (15) within aforesaid rigid body (2) being provided so as to allow said distance (D) to be automatically maintained at the time of said insertion.
Abstract:
The accumulation-type thread feeder (10), for example for textile applications, comprising: a body (12), which bears a rotary drum (16) on which turns of thread coming from a spool are wound; a tension sensor for detecting the value of the tension of the exiting thread and means for detecting the quantity of thread accumulated on the aforesaid drum (16); a light- reflecting element (25) being present on said drum or functionally associated therewith, such element (25) being generated by light generator means (30) borne by a support (27) arranged alongside the rotary drum (16), said support (27) being associated with means (31) adapted to detect the light reflected by said reflecting element (25A), said reflected light varying as a function of the quantity of thread wound on said rotary drum (16), said detection allowing the detection of such thread quantity. The detector means (31) are a light-sensitive member that directly receives the light reflected by said reflecting element (25A) along the entire surface (23) of the drum (18), said member allowing the determination of the density of the thread present on the drum.
Abstract:
A method for producing a filter (1) for injectors of fuel, oil, solutions, additives and fluids in general, for braking and transmission systems for example, comprises an element (3) made of plastic material and having a tubular shape, open at opposite ends (6, 7), internally hollow (at 4) and having on one wall (32) of its internal cavity (4) a plurality of projections (30) spaced apart from one another, these projections interacting with portions (27) of a filter element (21) of the pleated type associated with this tubular element and capable of filtering the fluid circulating through the latter. Provision is made for the filter element (21) and the tubular element (3) to form a single filter body by being co-moulded, the filter element (21) being incorporated and completely positioned within the tubular element (3), but having portions of filter surface area (24) which are free of this tubular element (3) so as to allow the passage and filtration of the circulating fluid.
Abstract:
The protection screen (10; 10A; 10B) is partially inflatable to get its own configuration of use and is formed of a material that enables it to roll up onto itself whenever it is deflated. The non-inflatable part (24, 26; 26A; 26B) of the screen (10; 10A; 10B) is at least partially formed of a sheet (26; 26A; 26B) made of a plastic material of such a type that, the screen being rolled up, if heated up to a determined temperature which depends on the type of the plastic material and subsequently cooled down, keeps a memory of its own rolled up condition, so as to make the screen (10; 10A; 10B) automatically roll up onto itself whenever it is deflated and left free.
Abstract:
A boat (1) comprises a hull (2) provided with a rear stern hatch (3) located in correspondence with an internal stern compartment (4) of said hull (2) and suitable for opening and closing in correspondence with an aperture (5) of said compartment, said hatch (3) having a body (20) with opposed side (12, 13) located in correspondence with side walls of said compartment and a upper edge (14) and a lower edge (15). The hatch (3) comprises actuating means (30) to open and close said compartment (4) arranged inside its own body (20), said actuating means (30) rotatably constraining at least one of said sides (12, 13) of the hatch (3) to said hull (2), said body (20) being not provided with any further connections of said sides (12, 13) to said hull.