Abstract: The present invention relates to a plastic comprising zinc sulphide and to its use.

Abstract: Bucket shovel type collection unit, used in an aluminum production cell, comprising: a) a means of fixing onto a mobile support; b) a connection actuated by a first actuator moving in relation to said mobile support in the vertical direction; c) a frame interdependent of said connection; d) at least one articulated bucket, swiveling around an axis assembled on said frame, having a blade and swiveling around said substantially horizontal axis. Said first actuator is connected to a programmable control system able to determine the altitude of said axis and the difference in altitude between said blade and said axis, define the vertical movement to be imposed on said collection unit, and define and transmit to said first actuator the appropriate control flow to impose said vertical movement. The control flow may be control current transmitted by a variable speed transmission to an electrical motor or an oil flow feeding the chamber of a hydraulic actuating cylinder, controlled by a servo-distributor.

Abstract: Collection unit, in particular a crust shovel designed to clean the anode holes, including a mobile vertical mast actuated by a first actuator, a frame fixed onto said mobile vertical mast and at least one articulated bucket, characterized in that said first actuator is at least one hydraulic jack fed by an hydraulic system arranged so that, at least when a second actuator actuates said bucket, the oil pressure in the chamber on the rod side is maintained at a substantially constant value making it possible to support a load corresponding to the weight of said collection unit, less a load of predetermined value, preferably lower than 1000 daN, and typically ranging between 200 and 600 daN. Advantageously, the portion of circuit feeding said chamber on the rod side is provided with a pressure regulator. With such a device, the debris may be collected by scraping the bottom of the cell without damaging it.

Abstract: Fastening device designed to fasten a collecting container comprising: a. at least one pivot-member assembled so as to swivel around an axis on a mobile arm and including at least one first transverse arm provided with a first fixing means and at least one second transverse arm provided with axial bores; b. at least two fasteners fixed onto said collecting container: the first fastener being provided with a second fixing means working in conjunction with said first fixing means; the second fastener, provided with axial bores; c. a pin, designed to be inserted and to slide inside said axial bores when they are aligned. There exists at least one bore of a group, called the “central bore”, which is conical and which is surrounded by two bores of the other group, called “peripheral bores” which are cylindrical. Said pin has a conical shoulder complementary to the central bore.

Abstract: The invention relates to a service machine (3) for a series of electrolysis cells (2) for the production of aluminium by igneous electrolysis, which includes: a) a bridge crane (4) capable of translation above said electrolysis cells; a tool-bearing carriage (6) on which is attached a service module including tools (10); c) a casting winch (13) connected to said bridge crane and for gripping and positioning near the cell (2) a casting assembly including a ladle (40), a casting tube (41) and a pressure reduction device; and an independent device (50, 50?) capable of generating pressurised air.

Abstract: This invention relates to pot tending module intended for aluminium production plants by fused bath electrolysis. According to the invention, the turret (9) of the pot tending module (7) is equipped with a determined set of tools, in which the tool (101, 102, 103) is mounted on a telescopic arm (111, 112, 113) fixed to the turret (9) through an articulated support (121, 122, 123) that enables pendular movements of the telescopic arm with respect to a determined articulation point while preventing rotation movements of the telescopic arm about its principal axis. The telescopic arms are connected to each other through a mechanical connecting device (200) capable of maintaining the relative angular difference between the pendular movements of the telescopic arms within a determined tolerance range. The invention enables the tools to be arranged closer to each other without any risk that they will collide during use.

Abstract: A device fixed to a first mast cooperates with a contact area located on the outside face of a second mast sliding substantially coaxially in the first mast. The device includes guide units including a roller mounted free to rotate about an axis orthogonal to the axis of the masts, a pad with a bearing face, and a device for displacing the axis of the roller perpendicular to the contact area of the mast, as a function of forces applied by the mast on the roller. The bearing area of the unit on the mast is thus formed by the roller only, or the roller and the pad.

Abstract: The present invention relates to a plastic comprising zinc sulphide and to its use.

Abstract: A package for a die comprising a thermally conducting carrier; a dielectric frame on the carrier, the frame having a recess therein for receiving a die; an electrically insulating lid adapted to be positioned on the frame to cover the recess, the lid having dimensions such that when covering the recess a portion of the lid extends beyond the frame creating at least one overhang; the frame having at least one electrically conducting frame path; and the lid having a corresponding electrically conducting lid path arranged such that when the lid is positioned on the frame a portion of the lid path overlies the frame path, the lid path extending onto the overhang beyond the frame.

Abstract: The invention relates to a pharmaceutical composition, use, or method in the treatment of Irritable Bowel Syndrome (IBS) characterized by mixed or alternating bowel habits based on a modification of the Rome II criteria (IBS-M), with 5-hydroxytryptamine type-4 receptor agonists (5-HT4 agonists), in particular tegaserod.

Abstract: A device fixed to a first mast cooperates with a contact area located on the outside face of a second mast sliding substantially coaxially in the first mast. The device includes guide units including a roller mounted free to rotate about an axis orthogonal to the axis of the masts, a pad with a bearing face, and a device for displacing the axis of the roller perpendicular to the contact area of the mast, as a function of forces applied by the mast on the roller. The bearing area of the unit on the mast is thus formed by the roller only, or the roller and the pad.

Abstract: The invention relates to a service module for factories producing aluminium by fusion electrolysis. The turret (9) of the inventive service module (7) is provided with a determined tool set, wherein each tool (101, 102, 103) is mounted on a telescopic arm (111, 112, 113) which is fixed to the turret (9) by a hinge support (121, 122, 123) which enables said telescopic arm to be perpendicularly movable with respect to a determined hinge point without rotating around the main axis thereof. Said telescopic arms are interconnected by a mechanical connection device (200) which maintains the relative angular deviation between the perpendicular movements thereof within a given tolerance range. Said invention makes it possible to bring the tools closer without striking each other during the use thereof.