Apparatus for magnetizing permanent magnet materials to form band-like poles thereon

Claim 1

APPARATUS FOR THE CONTINUOUS MAGNETIZATION OF PERMANENT MAGNET MATERIAL IN STRIP FORM FOR SIMULTANEOUSLY INDUCING A NUMBER OF ALTERNATE BAND-LIKE POLES ON BOTH SURFACES THEREOF, SAID APPARATUS COMPRISING, TWO SPACED ASSEMBLIES, EACH ASSEMBLY COMPRISING, A NORTH PRIMARY POLE PIECE AND A SOUTH PRIMARY POLE PIECE WHICH ARE SPACED FROM EACH OTHER, A PLURALITY OF NONMAGNETIC SPACERS AND FERROMAGNETIC SECONDARY POLE PIECES DISPOSED BETWEEN THE NORTH AND SOUTH PRIMARY POLE PIECES OF EACH ASSEMBLY IN ALTERNATE ORDER, SAID SECONDARY POLE PIECES BEING SPACED FROM EACH OTHER AND FROM THE PRIMARY POLE PIECES BY SAID SPACERS, AND ELECTROMAGNETIC MEANS FOR ESTABLISHING A MAGNETIC POTENTIAL DIFFERENCE BETWEEN PRIMARY POLE PIECES OF EACH ASSEMBLY WHEREBY NORTH AND SOUTH MAGNETIC POLES CAN BE INDUCED IN SAID NORTH AND SOUTH PRIMARY POLE PIECES RESPECTIVELY, THE NORTH AND SOUTH PRIMARY POLE PIECES OF EACH ASSEMBLY BEING OPPOSED RESPECTIVELY TO THE NORTH AND SOUTH PRIMARY POLE PIECES OF THE OTHER ASSEMBLY, THE SPACERS OF EACH ASSEMBLY BEING SUBSTANTIALLY CENTERED DIAMETRICALLY OPPOSITE THE RESPECTIVE SECONDARY POLE PIECES OF THE OTHER ASSEMBLY THE SECONDARY POLE PIECES AND SPACERS OF BOTH ASSEMBLIES DEFINING A REGION BETWEEN THEM THROUGH WHICH MATERIAL TO BE MAGNETIZED MAY BE PASSED.