Ceramic lined pump

Claim 1

A CERAMIC LINED PUMP FOR HANDLING ABRASIVE MIXTURES, COMPRISING AN OUTER END DISK OF METAL HAVING AN OUTWARDLY DIRECTED FLANGED INLET OPENING AND AN INWARDLY DIRECTED PERIPHERAL SHOULDER, A CORRESPONDING HUB DISK OF METAL HAVING A FLANGED OPENING FOR A DRIVING SHAFT AND A PERIPHERAL SHOULDER, FLANGED CERAMIC LINERS FOR SAID METAL OUTER END DISK AND HUB DISK COINCIDING IN DIAMETER WITH THE PERIPHERAL SHOULDER OF ITS ADJACENT DISK AND ADHESIVELY SECURED BY CEMENT TO THE DISK WITH ITS CIRCUMFERENTIAL EDGE IN FLUSH RELATION THEREWITH, THE FLANGES ON SAID LINERS FITTING WITHIN SAID OPENINGS, AN INTEGRAL CERAMIC LINER OF VOLUTE SHAPE HAVING FLANGES THAT REST DIRECTLY UPON THE PERIPHERAL SHOULDERS OF THE END DISKS AND UPON THE FLUSH CIRCUMFERENTIAL EDGE OF THE CERAMIC LINERS OF THE END DISKS, THUS SUPPORTING THE CERAMIC VOLUTE LINER AS A UNIT, AND A SECTIONAL METAL CASING OF VOLUTE FORM HAVING FLANGES FITTING UPON THE FLANGES OF THE CERAMIC VOLUTE LINER AND ENGAGING THE PERIPHERAL SHOULDERS OF SAID END DISC.