Rotary regenerator drum fabrication

Claim 1

A REGENERATOR MECHANISM COMPRISING IN COMBINATION, A REGENERATOR HOUSING, A PARTITION THROUGH SAID HOUSING DIVIDING THE HOUSING INTO A FIRST LOW TEMPERATURE CHAMBER AND A SECOND HIGH TEMPERATURE CHAMBER WITHIN THE HOUSING HAVING AN INLET AND AN OUTLET FOR EACH CHAMBER, AN ANNULAR MATRIX DRUM WITHIN THE HOUSING EXTENDING INTO EACH OF SAID CHAMBERS AND FORMED OF A NON-CORROSIVE CERAMIC MATERIAL WITH A LOW EXPANSION COEFFICIENT AND A HIGH THERMAL SHOCK RESISTANCE, SAID DRUM COMPRISING A SERIES OF ANNULAR FLAT SURFACED CERAMIC UNINTERRUPTED RINGS DISPOSED ONE ABOVE THE OTHER, AN INTERMEDIATE CORRUGATED CERAMIC RING DISPOSED BETWEEN EACH OF SAID FLAT SURFACED RINGS AND BONDED THERETO TO FORM RADIAL PASSAGES, ANNULAR END RINGS OF SOLID CERAMIC MATERIAL SURFACE BONDED TO THE ENDS OF THE DRUM FOR EXPANSION AND CONTRACTION THEREWITH WITH TEMPERATURE CHANGE, STRESSED METAL BANDS SURROUNDING SAID END RINGS AND APPLYING A CONTINUAL INWARDLY DIRECTED FORCE TO SAID CERAMIC END RINGS AND HAVING SMOOTH ANNULAR OUTER WEARING SURFACES FOR SLIDING ON SURFACES WITHIN THE HOUSING SO THAT THE CERAMIC END RINGS ARE PROTECTED, SEALS POSITIONED AROUND THE DRUM AT THE LOCATIONS WHERE IT PASSES THROUGH THE PARTITION, A DRIVE GEAR ATTACHED TO ONE OF SAID METAL BANDS, AND A PINION GEAR IN THE HOUSING IN DRIVING MESH WITH SAID DRIVE GEAR.