Abstract: A drawing and spinning apparatus of mixed yarns for air spinning machines with multiple feeds comprises at least a first and a second introducer element, an air spinning device, a drawing device, interposed between the introducer elements and the air spinning device, an air spinning chamber, an introducer nozzle shaped to receive the webs from the drawing device into respective insertion channels and introduce the webs into the spinning chamber according to a longitudinal feeding direction. With respect to a cross-section plane perpendicular to the longitudinal feed direction, groove bottoms of each of the two insertion channels of the webs into the chamber are aligned along a segment which is offset by an eccentricity with respect to a geometric centre of the chamber itself, through which a symmetry axis of the spinning chamber passes, the eccentricity being less than 5% of a maximum diameter of the spinning chamber.

Abstract: A spinning apparatus with continuous adjustment of a yarn accumulation system includes at least one spinning head including a spinning device including a spinning chamber for yarn production, a reel on which yarn produced by the spinning device is wound, the reel being rotatably influenced by a yarn guide shaped to impart a rotation movement of the reel for winding the yarn and a traversing movement of the yarn winding on the reel, an accumulation device arranged between the spinning device and the reel and shaped to create a reservoir of yarn not wound on the reel, a joining device including joining means to join together a first yarn end associated with the spinning device and a second yarn end associated with the reel, and a processing and control unit programmed to control the yarn guide to adjust accordingly the amount of yarn accumulated in the accumulation device.

Abstract: An air-jet type spinning device (4), comprising a body (8) at least partially hollow which defines a spinning chamber (12), a fibre feeding device (16) that feeds fibres into the spinning chamber (12), and a spinning spindle (20) including a spinning channel (24) for the suction of yarn obtained from the fibres. The device (4) including at least one channel (28) for sending a jet of compressed air inside the spinning chamber (12). A flow amplifier (32) comprising an expansion chamber (36) is in fluidic connection with the outside of the body (8), wherein the at least one channel (28) comes out in an emission point (40) inside the expansion chamber (36), to introduce compressed air at an inlet cross-section (44). The expansion chamber (36) comprises an outlet mouth (48), fluidically connected to the spinning chamber (12) and having an outlet cross-section (52) smaller than the inlet cross-section (44).

Abstract: A drawing and spinning apparatus of mixed yarns for air spinning machines with multiple feeds comprises at least a first and a second introducer element, an air spinning device, a drawing device, interposed between the introducer elements and the air spinning device, an air spinning chamber, an introducer nozzle shaped to receive the webs from the drawing device into respective insertion channels and introduce the webs into the spinning chamber according to a longitudinal feeding direction. With respect to a cross-section plane perpendicular to the longitudinal feed direction, groove bottoms of each of the two insertion channels of the webs into the chamber are aligned along a segment which is offset by an eccentricity with respect to a geometric centre of the chamber itself, through which a symmetry axis of the spinning chamber passes, the eccentricity being less than 5% of a maximum diameter of the spinning chamber.

Abstract: An air-jet type spinning device (4), comprising a body (8) at least partially hollow which defines a spinning chamber (12), a fibre feed device (16), facing said spinning chamber (12) so as to feed the fibres into the spinning chamber (12), a spinning spindle (20) at least partially inserted in the spinning chamber (12) and fitted with a spinning channel (24) for the suction of yarn obtained from said fibres, the spinning channel (24) defining a spinning direction (X-X), at least one channel (28) for sending a jet of compressed air inside the spinning chamber (12). Advantageously, the spinning chamber (12) is delimited at least partially by an outer side wall (32), opposite the spinning spindle (20), wherein at least one thread (36) is made on said outer side wall (32), wherein said at least one channel (28) is oriented so as to direct the jet of compressed air towards the at least one thread (36) in order to be guided and oriented by the latter.

Abstract: A device for opening and closing an outwardly opening pivoting wing includes an actuating device including a base and a toothed member rotatable with respect to the support and driven into rotation by a control device, and an arm having a toothed portion including a circular toothed portion and a straight toothed portion, wherein the toothed member cooperates with the circular toothed section to swing the arm between a closed wing angular position and an open wing angular position, and vice versa, and wherein, in the closed wing angular position, the toothed member cooperates with the straight toothed portion of the arm for moving the arm along a straight direction between a locked wing position and an unlocked wing position, and vice versa, wherein the support and the arm cooperate with each other by means of a guide system comprising a first, a second and a third pin-slot coupling.

Abstract: A device for opening and closing an outwardly opening pivoting wing, comprising: an actuating device including a support, a crank rotatable relative to the support and a control mechanism operated by the crank, and an arm having a toothed portion which cooperates with said control mechanism, wherein the control mechanism cooperates with the toothed portion of the arm for the translational motion of the arm along a rectilinear direction between a locked wing position and an unlocked wing position, and vice versa, a first and a second slider intended to engage a groove of the wing in a movable manner in a rectilinear direction, wherein the first slider is articulated at a distal end of the arm and wherein the second slider is connected to a locking device.

Abstract: A device for opening and closing an outwardly opening pivoting wing, comprising: an actuating device including a support, a crank rotatable with respect to the support and a control mechanism actuated by the crank, an arm having a toothed portion, wherein said control mechanism cooperates with the toothed portion of the arm for swinging the arm between a closed wing angular position and an open wing angular position, and wherein in the closed wing angular position the control mechanism cooperates with the toothed portion of the arm for the translational motion of the arm along a straight direction between a locked wing position and an unlocked wing position, and vice versa, a first slider and a second slider intended to engage a groove of the wing in a movable manner in a straight direction.

Abstract: A device for opening and closing a pivoting wing, comprising: a stationary support intended to be attached to a fixed frame, a slide movable relative to the stationary support along a rectilinear direction between an open wing position and a closed and locked wing position, a pivoting arm articulated to the stationary support about an articulation axis, and having a distal end intended to be connected to the wing, a transmission mechanism associated with the slide and the arm, comprising an essentially L-shaped cam engaged by a control pin, the transmission mechanism being configured to transform the rectilinear movement of the slide along said rectilinear direction into a pivoting movement of the arm about said pivot axis.

Abstract: A device for opening and closing a pivoting wing, comprising: a stationary support intended to be attached to a fixed frame, a slide movable relative to the stationary support along a rectilinear direction between an open wing position and a closed and locked wing position, a pivoting arm articulated to the stationary support about an articulation axis, and having a distal end intended to be connected to the wing, a transmission mechanism associated with the slide and the arm, comprising an essentially L-shaped cam engaged by a control pin, the transmission mechanism being configured to transform the rectilinear movement of the slide along said rectilinear direction into a pivoting movement of the arm about said pivot axis.

Abstract: Auxiliary safety module for doors fitted with an anti-panic opening device, comprising: a stationary support having a base wall and two parallel side walls projecting from said base wall, a slider movable relative to the stationary support along a longitudinal direction (C) between a closed position and an open position, and elastically pushed towards the closed position, a spring latch movable relative to the stationary support between an extracted position and a retracted position, elastically pushed towards the extracted position and connected to the slider so that when the slider is in the closed position, the latch is elastically pushed towards the extracted position, and when the slider is in the open position, the latch is retained in the retracted position, a hook hinged to the stationary support about an axis perpendicular to said longitudinal direction.

Abstract: A system for fixing an accessory on a metal frame for doors, windows, and the like, includes a screw having a head and a self-tapping threaded stem with metric thread, the end of which opposite to the head is tapered. A ratio between the external diameter of the self-tapping stem of the screw and the diameter of the through hole of the wall of the frame is approximately between 1.4 and 1.25, and the ratio between the diameter of the through hole of said wall and its thickness is approximately between 2.5 and 5.5 and more preferably between 3 and 5.

Abstract: An air-exchange device for buildings, designed to be installed between an internal environment and an external environment, comprising, a casing having a substantially flattened parallelepiped shape; a heat exchanger housed inside said casing; and a first fan and a second fan, which have respective intake and delivery sections and are arranged for generating, respectively, a first airflow directed from the inside to the outside and a second airflow directed from the outside to the inside, where the first and second airflows are in a relationship of mutual heat exchange in said heat exchanger.

Abstract: A photovoltaic receiver comprising an elongated structure bearing a plurality of photovoltaic cells. Said structure carries a plurality of finned dissipators, mounted on which are said photovoltaic cells, and ventilating means, designed to convey a flow of cooling air towards said dissipators.

Abstract: A hinge for doors, windows, or the like, comprising, a first hinge element and a second hinge element, which have, respectively, a first cylindrical articulation portion and a second cylindrical articulation portion, wherein the first articulation portion has an external diameter smaller than the external diameter of the second articulation portion; a hingepin, which defines a hinge axis; an adjustment device, which is associated to one of said articulation portions and can be actuated for displacing said hinge elements with respect to one another in a direction substantially transverse to said hinge axis; and a covering sleeve, provided externally to the first articulation portion and having an external diameter equal to the external diameter of said second articulation portion, wherein the covering sleeve is mounted so that it can turn with respect to the first articulation portion about an axis that is eccentric with respect to said hinge axis and can be displaced with respect to the first articulation por

Abstract: A system for fixing an accessory on a metal frame for doors, windows, and the like, includes a screw having a head and a self-tapping threaded stem with metric thread, the end of which opposite to the head is tapered. A ratio between the external diameter of the self-tapping stem of the screw and the diameter of the through hole of the wall of the frame is approximately between 1.4 and 1.25, and the ratio between the diameter of the through hole of said wall and its thickness is approximately between 2.5 and 5.5 and more preferably between 3 and 5.

Abstract: A method for mounting an auxiliary member on a window or door frame already installed and whereon is mounted a drive assembly comprising at least one actuating member and at least one transmission rod mounted in at least one slot of the frame. The method comprises the steps of, providing, between the auxiliary member and the rod, a coupling that is slidable in a longitudinal direction and fixed in any direction orthogonal to the direction of sliding, and forming a through hole in the rod by a screw carried by the auxiliary member, and fastening the auxiliary member to the rod by the engagement of a tip of the screw with the through hole.

Abstract: A method for mounting a drive assembly on a door or window frame, comprising the steps of: mounting at least one actuating member and at least one transmission rod in at least one slot of the frame and mutually fastening the actuating member and the transmission rod by a screw that engages a through hole formed in the transmission rod. The through hole is formed in the transmission rod after mounting the actuating member and the transmission rod in the slot.

Abstract: A hinge for doors or windows, comprising a hinge-pin (26) defining an axis of rotation (28), a first hinge element (22) and a second hinge element (24), which are articulated to one another about said axis (28) via said pin (26), the hinge including a reinforcement kit comprising an extension element (32) that can be applied by shape fit to an end of the pin (26), and a third hinge element (30) connectable to the first hinge element (22) in a pre-set position and having a hole (82) that can be engaged by said extension element (32) of the pin (26).

Abstract: Method for mounting a control assembly for doors or windows, in which the door or window comprises a frame including a metallic section bar having an outer wall and a longitudinal groove, and in which the control assembly comprises a handle having a base, a rotatable grip and a rotatable control pin, a transmission device having an input member able to be coupled with the control pin of the handle and at least one carriage movable in rectilinear direction, and connected to the input member by means of a mechanism, a rod able to slidably engage said groove, and a connecting member able to be fastened to the rod.