Abstract: A unit for the collection, cleaning and calibration of electrolysis pots and, in particular, of anodic orifices thereof, as the anodes of an installation for the production of aluminum by igneous electrolysis are replaced, includes two buckets hinge-mounted at the level of a lower end of a shovel-bearing chassis which is vertically movable. The lower edge of each of the buckets is movable in a circular direction by a connecting rod assembly. Also the shovel-bearing chassis is joined to a vertical guide mast and is mechanically linked to the buckets-supporting chassis. The buckets-supporting chassis is moveable relative to the shovel-bearing chassis and integrates the connecting rod assembly for closing and opening the buckets with the buckets being hinge-mounted at the lower end of the buckets-supporting chassis.

Abstract: This unit for the collection, cleaning and calibration of electrolysis pots and, in particular, of the anodic orifices, as the anodes of an installation for the production of aluminium by igneous electrolysis are replaced, comprises two buckets (16, 17) hinge-mounted at the level of the lower end of a chassis (10) movable in vertical displacement, the lower edge (31) of each of the said buckets (16, 17) being liable to be bestowed with a circular movement by means of a closing and opening connecting rod assembly (14, 14′).

Abstract: This device for lifting the anode frame of an electrolysis cell for the production of aluminium comprises:

Abstract: This method of managing the operation of a plant for the production of aluminium by igneous electrolysis, of the type having a set (2, 3) of two electrolysis tankrooms, each having a series of tanks, the tankrooms being mutually parallel and symmetrical with respect to a central passageway (4) in which the handling of the liquid-aluminium tapping ladle is carried out, consists in carrying out the various handling operations at each of the tanks, necessary for the operation of the plant, in a closed loop, the members (13, 13′, 13″, 13′″, 14, 14′, 14″, 14′″) needed for the operation being moved over all the tanks of the two tankrooms of continuous cycles. The invention also relates to the plant for implementing this method.

Abstract: The invention relates to a tool holder module intended to be used in lifting gear, characterized in that it is equipped with two independently motorized lifting member:a first member, which consists of a lifting system with cable(s) wrapped over electrically motorized drum(s) and returned at a sheaving system, said first member being intended to displace a load at a relatively high speed and over a relatively large distance;a second member, one of the constituent elements of which is secured to the end of the cable or cables of said first member after return at the sheaving system and is intended, in cooperation with this system, to displace a heavier load vertically at a lower speed and over a limited distance.

Abstract: A tool holder module intended to be used in lifting gear, characterized in that it is equipped with two independently motorized lifting member: a first member, which consists of a lifting system with cable(s) wrapped over electrically motorized drum(s) and returned at a sheaving system, the first member being intended to displace a load at a relatively high speed and over a relatively large distance; a second member, one of the constituent elements of which is secured to the end of the cable or cables of the first member after return at the sheaving system and is intended, in cooperation with this system, to displace a heavier load vertically at a lower speed and over a limited distance.