V-shaped magnetic separator assembly

Claim 1

IN A MAGNETIC SEPARATOR, A DRUM HAVING A CYLINDRICAL SIDEWALL COMPOSED OF A NON-MAGNETIC MATERIAL AND MOUNTED FOR ROTATION ON A SHAFT, A PERMANENT MAGNET ASSEMBLY HAVING TWO POLES AT A WORKING FACE THEREOF ADAPTED TO ATTRACT MAGNETIC MATERIAL TO BE SEPARATED TOWARDS THE EXTERNAL SURFACE OF THE SIDEWALL OF THE DRUM AND MOUNTED WITHIN THE DRUM, SAID WORKING FACE BEING POSITIONED IN CLOSE PROXIMITY TO THE INTERNAL SURFACE OF SAID SIDEWALL, THE MAGNETIC ASSEMBLY COMPRISING A V-SHAPED YOKE OF PERMEABLE SOFT MAGNETIC MATERIAL HAVING TWO ARMS EXTENDING AWAY FROM THE WORKING FACE THEREOF, A PAIR OF POLE MEMBERS OF PERMEABLE SOFT MAGNETIC MATERIAL EACH SPACED FROM AND PARALLEL TO AN ARM OF SAID YOKE, BODIES OF ORIENTED PERMANENT MAGNETIC MATERIAL SUBSTANTIALLY COMPLETELY FILLING THE SPACES BETWEEN THE ARMS OF THE YOKE AND THE POLE PIECES AND EXTENDING TO THE WORKING FACE OF THE MAGNETIC ASSEMBLY, THE ARRANGEMENT AND DIRECTION OF MAGNETIZATION OF THE ORIENTED PERMANENT MAGNET MATERIAL BEING SUCH AS TO COUPLE SAID MAGNETIC BODIES IN SERIES THROUGH SAID YOKE.