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: A method and apparatus for regulating a load compensator device for a handling gear. The load compensation device includes: a stationary internal bell housing; a mobile external bell housing which is secured at one of the ends of a handling member, from the other end of which the load is hung; and an overload pneumatic cylinder and an underload pneumatic cylinder connected to a pressure source and/or exhausted by a series of electric directional control valves. The pressure is controlled within the cylinders continuously to alter the datum position of the external bell housing that corresponds to the state of equilibrium, function of the variations in pressure which are measured at the cylinders. Changes in pressure cancels out any overload or underload effect on the load and returns the load compensator to its state of equilibrium that corresponds to the handling gear in its initial state of equilibrium.