47682 ⎘
Apparatus or methods for obtaining or processing clay for processing clay-containing substances in non-fluid condition ; Plants specially adapted for homogenising, comminuting or conditioning clay in non-fluid condition or for separating undesired admixtures therefrom for comminuting clay lumps by forcing the clay through screens or slots, e.g. using screw or rolls on cylindrical or conical surfaces, e.g. on rotating drums