Stirring mill

Claim 1

IN A STIRRING MILL COMPRISING A GRINDING CONTAINER AND A STIRRING MECHANISM MOUNTED FOR ROTATION THEREIN AND INCLUDING A STIRRING SHAFT HAVING STIRRING ELEMENTS, AUXILIARY GRINDING BODIES SUCH AS SAND, BEADS OR THE LIKE ADAPTED TO BE CONTACTED BY MATERIAL PASSING THROUGH SAID CONTAINER FOR ELIMINATING SOLIDS PRIMARILY IN LIQUIDS, A PLURALITY OF DISK ELEMENTS MOUNTED IN SPACED RELATION UPON SAID SHAFT, SAID DISK ELEMENTS HAVING OUTER PORTIONS DEFINING ANNULAR SURFACES, AND A PLURALITY OF COUNTER RINGS, ONE FOR EACH DISK, MOUNTED ON SAID CONTAINER EACH PRESENTING AN ANNULAR SURFACE AND COOPERATING WITH THE ANNULAR SURFACE OF AN ADJACENT DISK ELEMENT TO DEFINE A GAP FOR SEPARATING MATERIAL BEING TREATED FROM SAID AUXILIARY GRINDING BODIES, AND SUCCEEDING COOPERATING DISKS AND COUNTER RINGS DEFINING ZONES IN SAID CONTAINER WITH PRECEDING DISKS AND COUNTER RINGS, AND AT LEAST ONE APERTURE DEFINED IN SAID CONTAINER TO PROVIDE ACCESS TO AT LEAST ONE SAID ZONE AND A CLOSURE PLUG ADAPTED TO CLOSE SAID AT LEAST ONE APERTURE.