Magnetic separator

Claim 1

APPARATUS FOR SEPARATING MAGNETIC PARTICLES FROM LIQUID, COMPRISING A HOUSING, FIRST AND SECOND MAGNET-CONTAINING DRUMS SUPPORTED BY THE HOUSING FOR ROTATION ABOUT SPACED APPROXIMATELY HORIZONTAL AXES, WITH THE AXIS OF THE SECOND DRUM AT A HIGHER LEVEL THAN THAT OF THE FIRST DRUM, THE MAGNETS IN EACH DRUM BEING PERIPHERALLY DISPOSED, DRIVE MEANS FOR ROTATING SAID DRUMS, THE HOUSING HAVING AN ARCUATE APRON EXTENDING IN SUBSTANTIAL CONCENTRICITY QITH SAID FIRST DRUM AROUND THE LOWER PORTION THEREOF AND TOGETHER THEREWITH DEFINING A PASSAGEWAY FOR LIQUID IN WHICH PARTICLES MAY BE DRAWN MAGNETICALLTY TO SAID FIRST DRUM, SAID APRON HAVING AT ONE END THEREOF A LIP, OVER WHICH THE LIQUID MAY SPILL, FOR ESTABLISHING THE LIQUID LEVEL IN SAID PASSAGEWAY, TRANSFER MEANS HAVING A DOWNWARDLY INCLINED SURFACE DEPARTING APPROXIMATELY TANGENTIALLY FROM AN UPPER PORTION OF THE FIRST DRUM, IN THE DIRECTION OF ROTATION OF THE DRUM, FOR MECHANICALLY REMOVING ADHERING PARTICLES AND RESIDUAL LIQUID, THE SECOND DRUM BEING ABOVE SAID LIQUID LEVEL ESTABLISHED BY SAID LIP, SAID DOWNWARDLY INCLINED SURFACE EXTENDING IN A PLANE BENEATH THE SECOND DRUM IN SUCH SPACED RELATION THERETO THAT THE REMOVED LIQUID MAY FLOW DOWN SAID INCLINED SURFACE PAST THE SECOND DRUM, WITHOUT CONTACT THEREWITH, WHILE PARTICLES ON SAID INCLINED SURFACE ARE MAGNETICALLY DRAWN ACROSS AN AIR GAP TO SAID SECOND DRUM, AND MEANS FOR REMOVING THE PARTICLES FROM THE SECOND DRUM.