Portable self-priming pump construction

Claim 1

A SELF-PRIMING BEARINGLESS CENTRIFUGAL PUMP CONSTRUCTION ADAPTED FOR DIRECT DRIVING CONNECTION TO THE HOUSING AND DRIVING SHAFT OF AN INTERNAL COMBUSTION ENGINE, COMPRISING A TWO PIECE PUMP BODY HAVING A FIRST MAJOR BODY PORTION HAVING THEREIN A FLUID RETAINING CHAMBER AND A SECOND LESSER BODY PORION HAVING THEREIN AN IMPELLER CHAMBER, A BLADED IMPELLER HAVING A HUB AND CENTRAL INTAKE, SAID IMPELLER MOUNTED IN SAID IMPELLER CHAMBER AND BEING ADAPTED FOR DIRECT CONNECTION TO SAID ENGINE SHAFT, A FLAT IMPELLER PLATE MOUNTED BETWEEN THE SAID FIRST AND SECOND PUMP BODY PORTIONS TO CONSTITUTE A PARTITION BETWEEN SAID FLUID RETAINING AND IMPELLER CHAMBERS WITH AN OPENING ALIGNED WITH SAID IMPELLER INTAKE, A FLUID ENTRY PASSAGE IS SAID FIRST BODY PORTION LEADING FROM THE EXTERIOR OF SAID BODY TO THE OPENING OF SAID IMPELLER PLATE, A FLUID DISCHARGE PASSAGE HAVING A FIRST PORTION WITHIN SAID FIRST BODY PORTION AND A CONTINUING SECOND PORTION WITHIN SAID SECOND BODY PORTION AND LEADING FROM SAID IMPELLER CHAMBER TO THE EXTERIOR OF SAID BODY, SAID FLUID ENTRY PASSAGE BEING PARTITIONED FROM SAID FLUID DISCHARGE PASSAGE AND FROM SAID FLUID RETAINIING CHAMBER WITH THE EXCEPTION OF A RELATIVELY SMALL PASSAGE LEADING INTO SAID FLUID RETAINING CHAMBER FOR PRIMING PURPOSES, SAID FLUID DISCHARGE PASSAGE BEING INTERRUPTED BY AN OPEN PORT LEADING INTO SAID FLUID RETAINING CHAMBER ABOVE THE SAID DISCHARGE END OF SAID IMPELLER, SAID BODY SECOND PORTION HAVING A CYLINDRICAL EXTENSION HAVING THEREIN AN AXIAL RECESS ACCOMMODATING SAID HUB PORTION OF SAID IMPELLER AND CONNECTING PORTION OF SAID ENGINE DRIVE SHAFT AND MEANS ON THE OUTER END OF SAID CYLINDRICAL EXTENSION ADAPTED FOR DIRECT CONNECTION TO SAID INTERNAL COMBUSTION ENGINE HOUSING