Permanent magnet damping assembly for integrating meters

Claim 1

IN A WATTHOUR METER OF THE DISC TYPE, IN COMBINATION, A THIN WALLED FRAME CASTING INCLUDING A VERTICAL WALL HAVING A HORIZONTAL SLOT THEREIN TO FREELY RECEIVE THE DISC, SAID WALL HAVING A RELATIVELY DEEP POCKET CAST THEREIN AT ONE END OF SAID SLOT, A ROUGHLY C-SHAPED PERMANENT MAGNET ASSEMBLY IN SAID POCKET AND ORIENTED TO STRADDLE THE EDGE OF THE DISC, SAID ASSEMBLY INCLUDING A RELATIVELY THICK PERMANENT MAGNET AND A SUPERIMPOSED THINNER TEMPERATURE COMPENSATOR HAVING A NEGATIVE TEMPERATURE COEFFICIENT OF PERMEABILITY, THE POCKET HAVING A FLAT BOTTOM WALL ENGAGING A PORTION OF THE BOTTOM OF SAID ASSEMBLY, THE POCKET SIDE WALLS FLARING OUTWARDLY FROM THE PERIPHERY OF SAID BOTTOM WALL, THE BOTTOM WALL HAVING SPACED HOLES THERETHROUGH, AND A UNITARY FILLING OF CAST MATERIAL IN THE SPACE BETWEEN THE MAGNET ASSEMBLY AND POCKET WALLS AND EXTENDING THROUGH THE SAID HOLES TO SECURE THE ASSEMBLY IN SAID POCKET.