Mecanarbed S.a.r.l.

Arbed - Acieries Reunies De Burbach-eich-dudelange

Joseph Colling

Fernand Artois

Robert Mercatoris

Carlo Heintz

Alfred Unbekand

Albert Feitler

A method for producing colloidal mixtures, especially water-cement mixtures with or without further solid additions, comprising the steps of feeding the material for forming the colloidal mixture into a container, stirring the material fed into the container by a blade stirrer driven by a motor at a circumferential speed at the outer diameter of the blade stirrer of at least 500 and preferably 1,500 meters per minute, continuously measuring the variations in the energy take-up of the motor, and stopping stirring of the material when the continuously observed energy take-up indicates a sudden transition from a fluctuating to a substantially steady course; and an apparatus for carrying out this method.

Apparatus for the production of colloidal mixtures

A method of removing encrustations from a metallurgical lance comprising the steps of relatively displacing the lance and a tool with the tool in contact with a layer of encrustation on the lance and applying a repetitive movement to the tool against the layer to dislodge the layer from the lance and permit the layer to fall therefrom by its weight.

Method of and apparatus for the decrusting of metallurgical lances

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Luxembourg, Luxembourg

Joseph Colling