Abstract: A welding generator comprising an input rectifier stage, a bank of leveling capacitors, an inverter block, a transformer, a rectifier stage and an inductor downstream of which the arc forms and an input voltage adapting regulator stage having, in series at the output of the input rectifier, a first controlled electronic switch with in output a first diode also connected to the common line, an inductor, a second controlled electronic switch and a second diode being connected in series downstream of the first controlled electronic switch, the output of the inductor being connected to the common line, the second diode being connected to the bank of leveling capacitors; the voltage Vin measured at the output of the rectifier stage having thus the same orientation as the voltage V0 measured across the bank of leveling capacitors.

Abstract: An apparatus for manufacturing threaded caps comprises a plurality of compression molding assemblies which are arranged on a rotating carousel and comprise an upper male mold half and a lower female mold half. The male mold half comprises a tubular element, a sleeve guided coaxially to said tubular element, and a punch guided in the tubular element and having a helical slot for forming the thread of the cap. The punch enters the female mold half and produces, together with it, the cap through compression of a dose of plastic material deposited in the female mold half. After the spacing of the punch from the female mold half, the removal of the cap from the punch occurs by way of a removal device, which comprises a ring gear associated with the sleeve and provided with a collar in sliding contact on the punch, a rod which can slide axially in a seat of the carousel and supports a gear meshing with the ring gear and connected to a motor drive mechanism.

Abstract: The bag is made from a polyethylene sheet and has a mouth with at least one sheath along its edge, the sheath containing an inextensible ribbon which is graspable from outside through a hole cut in the sheath, in order to close the bag after filling. An elastically extensible ribbon is fastened at its opposite ends to the material of the bag. When the bag is received in a rigid bin with its upper margin overturned over the bin rim, the elastic ribbon is pulled radially, looped and released around the overturn of the bag to clamp it around the bin.

Abstract: A luminaire, of the ceiling-mounted type or of the type for recessed fitting in ceilings and walls for interior lighting, comprising a hollow body which is shaped like a paraboloid and forms a back on an upper part and an opening on a lower part, the body accommodating a light source in its internal cavity; the internal surface of the body is divided into sectors which form receptacles that can be engaged detachably by a plurality of reflective laminar elements in order to form various hues, chromatic compositions and/or light distributions.

Abstract: A method for generating a frequency-modulated signal with high receivability quality, comprising the steps of: before sending an input modulating signal to a modulator, modifying the input modulating signal so as to compensate for distortions which will be introduced in the modulated signal receiving section.

Abstract: An actuation and control device for opening and/or closing high- and medium-voltage circuit breakers having at least one fixed contact and at least one moving contact, comprising actuation means which are operatively connected to the moving contact and supply the energy for performing the opening/closure movement, the particularity of which consists of the fact that the actuation means comprise a servomotor, an electronic control and power supply unit, and elements for transmitting motion, and that the actuation means and/or the coupling between the fixed contact and the moving contact are such as to achieve a desired speed of the moving contact at the instant in which it separates from the fixed contact.

Abstract: A generator for arc welding machines provided with an input rectifier stage which has a unit power factor and comprises an inductor, on the mains side, two diodes and two electronic switches, one for each diode, which are driven by a driver which renders the absorption of the input rectifier stage practically sinusoidal.

Abstract: An improved sprung hinge for supporting panel-like closure elements is of the type comprising a first articulated quadrilateral and a second articulated quadrilateral which share a first lever and a second lever, and at least first and second elastic elements arranged in series which act on mutually opposite parts of each one of the quadrilaterals, the first lever being formed monolithically.

Abstract: A device for transmitting rotary motion to a plate-holding impression cylinder of a plate mounting machine for flexographic printing, comprising a backup roll which can be actuated rotatably by a first motor; a beam, which is provided with crescent-shaped rests for rotatably supporting end pivots of the impression cylinder; a gear coaxial to the impression cylinder and rotatably supported by a head associated with the beam; and a hollow transmission shaft engaging at one end, one of the pivots and, at the other end, the gear; the transmission shaft being movable coaxially to the gear between a retracted disengagement configuration and a protruding engagement configuration in which the impression cylinder is actuatable.

Abstract: The present invention relates to a cardboard pallet-like container which also acts as an exhibitor. The container is obtained from a single sheet of die-cut and folded cardboard by means of which the entire structure is obtained. The container is a parallelepiped which is cut, on each lateral face, along a diagonal so as to obtain a base semi-container provided with legs and a top semi-container which can be fitted over the base semi-container.

Abstract: A method and an apparatus for nondestructively detecting the orientation of anisotropic molecules in thin films and in molecular layers in general. The present invention is based on a single measurement of the non-polarized photoluminescence spectrum, in order to determine whether the molecules are orientated at right angles or parallel to the surface of the molecular layer, fabricated with any technique. The method is fast and noninvasive and can also allow to observe noninterferingly in real time during growth the orientation of the molecules in the film. The result of this real-time observation can be used to optimize the growth conditions of the film in order to achieve the intended molecular orientation.

Abstract: An insulating glazing unit internally provided with a blind which is adapted to be moved from a fully gathered condition to an unfolded condition, and vice versa. The blind, in the gathered configuration, is arranged in the lower part and interacts with an arrangement for pulling a flap in order to unfold it from the bottom upward until the insulating glazing unit is fully blacked out.

Abstract: A device for supporting and fixing bus-bars in cabinets for switchboards, comprising: a first element, constituted by a body made of insulating material, which has a first side provided with means for direct engagement to a supporting frame and a second side provided with a plurality of first seats for coupling to corresponding bus-bars; a second element, constituted by a body made of insulating material which has a shaped side along which a plurality of second seats are provided for coupling to the bus-bars, the first and second elements being mutually connected in order to geometrically couple the first and second seats and to clamp the bus-bars inside the seats.

Abstract: An adjustment device, particularly for adjusting the size of an in-line roller skate composed of a frame connected to the wheels and to the heel unit of a shell to which a cuff is articulated. A toe unit for containing an innerboot is slidingly connected with the frame, can be positioned selectively, and can be actuated directly by the user.

Abstract: A braking device, particularly usable for skates comprising a shoe composed of a quarter which is articulated to a shell associated with a supporting frame for two or more wheels, and comprising at least one traction element which is connected at one end to a tab which protrudes from a braking element which is located in a region which is adjacent to the last wheel and oscillates in contrast with at least one flexible element. In the braking device, the traction element is associated, at its other end, with two levers which operatively interact with the quarter and allow to take up the traction element when the quarter oscillates backward so as to place the braking element in contact with a braking surface.

Abstract: A braking device for skates having a shoe composed of a quarter which is articulated to a shell which is associated with a supporting frame for two or more wheels. The device has a traction element which operatively connects the quarter to lever system which actuates the movement of a braking element which is slidingly and freely rotatably associated with the frame in a region located in the interspace between two adjacent wheels. The motion occurs in contrast with a spring.