Centrifugal machine

Claim 1

A CENTRIFUGAL MACHINE INCLUDING A ROTOR WITH A SINGLE RETICULATED FRUSTO-CONICAL PERIPHERAL WALL HAVING A DISCHARGE OUTLET FOR SOLID MATERIAL AT ITS LARGER END, SAID WALL TERMINATING AT ITS SAID LARGE END, MEANS TO ROTATE SAID ROTOR, A FEED DISTRIBUTING MEMBER POSITIONED WITHIN THE SMALLER END OF SAID PERIPHERAL WALL, MEANS FOR FEEDING A SLURRY OF LIQUID AND SOLIDS INTO SAID CENTRIFUGAL MACHINE CENTRALLY OF SAID DISTRIBUTING MEMBER, A DAM OF LESSER RADIUS THAN THE LARGER END OF SAID PERIPHERAL WALL AND POSITIONED WITHIN SAID PERIPHERAL WALL ADJACENT SAID DISCHARGE OUTLET, SAID DAM HAVING A CIRCULAR OUTER EDGE SPACED FROM THE INNER SURFACE OF SAID WALL, AN IMPERFORATE ANNULAR END MEMBER POSITIONED CLOSELY ABOUT AND EXTENDING AXIALLY OUTWARD BEYOND SAID DISCHARGE OUTLET, MEANS FOR ROTATING SAID ANNULAR END MEMBER WITH SAID ROTOR, MEANS FOR RECIPROCATING SAID ANNULAR END MEMBER AXIALLY RELATIVE TO SAID DISCHARGE OUTLET, THE INNER SURFACE OF SAID PERIPHERAL WALL DEFINING AN ANGLE WITH THE AXIS OF ROTATION IN A PLANE OF SAID AXIS WHICH IS GREATER THAN THE ORIGINAL ANGLE OF REPOSE OF SAID SLURRY AND OF SAID SOLIDS, AN AN IMAGINARY LINE IN A PLANE OF THE AXIS OF ROTATION AND TOUCHING THE INNER EDGE OF THE OUTER PERIPHERY OF SAID ANNULAR END MEMBER WHEN IN OUTERMOST POSITION AND THE OUTER EDGE OF SAID DAM AND DEFINING AN ANGLE WITH THE AXIS OF ROTATION WHICH IS LESS THAN THE ANGLE OF REPOSE OF THE DISCHARGING SOLIDS, THE IMAGINARY LINE DEFINING AN ANGLE GREATER THAN THE ANGLE OF REPOSE OF THE DISCHARGING SOLIDS WHEN SAID ANNULAR END MEMBER IS IN INNERMOST POSITION.