Countercurrent flow centrifugal separator

Claim 1

A CENTRIFUGAL SEPARATOR FOR THE PROCESSING OF MIXTURES OF GLYCERIDE OILS AND THE LIKE CONTAINING CENTRIFUGALLY SEPARABLE MATERIAL, SAID SEPARATOR INCLUDING: A ROTOR AND MEANS FOR JOURNALLING SAID ROTOR TO TURN ABOUT A HORIZONTAL AXIS, THE OUTERMOST INTERIOR OF SAID ROTOR PROVIDING A PERIPHERAL ZONE BOUNDED OUTWARDLY BY AN INTERNAL CYLINDRICAL PERIPHERAL WALL OF SAID ROTOR EXTENDING SUBSTANTIALLY PARALLEL WITH SAID AXIS, THERE BEING A MAIN ANNULAR SEPARATING ZONE RADIALLY INWARD OF SAID PERIPHERAL ZONE; A PLURALITY OF CYLINDRICAL APERTURED BANDS EXTENDING AROUND SAID AXIS IN SAID MAIN ANNULAR SEPARATING ZONE AND SPACED RADIALLY FROM EACH OTHER, THE ANNULAR INTERBAND SPACED BETWEEN THE TWO OUTERMOST OF SAID BANDS BEING A DELIVERY SPACE OPEN AT ONE END THEREOF; WALLS FORMING AN ANNULAR EQUALIZING SPACE ON ONE SIDE OF THE RADIAL MIDPLANE OF SAID ROTOR HAVING ITS SOLE OUTLET TO SAID ONE END OF SAID DELIVERY SPACE, SAID EQUALIZING SPACE AND SAID PERIPHERAL ZONE BEING SPACED FROM EACH OTHER IN THE DIRECTION OF SAID AXIS, AND INCLUDING A WALL THEREBETWEEN SEPARATING THE SAME, SAID SEPARATING WALL EXTENDING BETWEEN THE OUTERMOST OF SAID TWO BANDS AND SAID PERIPHERAL WALL OF SAID ROTOR; MEANS FOR DELIVERING THE MIXTURE UNDER PRESSURE TO SAID EQUALIZING SPACE FOR EQUAL DISTRIBUTION TO SAID ONE END OF SAID DELIVERY SPACE, SAID MIXTURE FLOWING ALONG SAID DELIVERY SPACE IN THE DIRECTION OF SAID AXIS, THE SEPARABLE MATERIAL MOVING OUTWARD BY CENTRIFUGAL FORCE THROUGH THE APERTURES OF THE OUTER OF SAID TWO BANDS TO COLLECT IN SAID PERIPHERAL ZONE, THE OIL MOVING INWARD FROM THE APERTURES OF THE INNER OF SAID TWO BANDS TO AN OIL WITHDRAWAL POSITION NEAR SAID AXIS; MEANS FOR CONTINUOUSLY REMOVING SAID OIL FROM SAID OIL WITHDRAWAL POSITION TO A POSITION EXTERIOR OF SAID ROTOR; AND MEANS FOR REMOVING COLLECTED MATERIAL FROM SAID PERIPHERAL ZONE.