Separation of greasy liquids and recovery of paper fiber from municipal refuse

Claim 1

THE PROCESS OF RECOVERING BY-PRODUCTS, INCLUDING PAPER FIBERS FOR REUS FROM REFUSE CONTAINING WASTE PAPER CONTAMINATED BY GARBAGE, COMPRISING THE STEPS OF: A. FORMING FROM SAID REFUSE A PUMPABLE AQUEOUS SLURRY WHEREIN THE SOILD CONSTITUENTS ARE OF A MAXIMUM PARTICLE SIZE OF THE ORDER OF PAPER FIBERS AND CONSIST ESSENTIALLY OF PAPER FIBERS CONTAMINATED WITH GREASY LIQUIDS, B. SUPPLYING SAID SLURRY TO A CONICAL VESSEL HAVING A TANGENTIALLY ARRANGED INLET PORT ADJACENT THE BASE THEREOF AND HAVING OUTLET PORTS IN THE AEX AND BASE THEREOF, SAID INLET AND BASE PORTS BEING THE SAME ORDER OF FLOW AREA, C. MAINTAINING THE SUPPLY FLOW TO SAID INLET PORT SUFFICIENTLY HIGH TO DEVELOP IN SAID VESSEL CENTRIFUGAL FORCE CONDITIONS CAUSING VERTICAL SEPARATION OF SAID SLURRY WITHIN SAID VESSEL INTO AN OUTER FRACTION CONTAINING THE LARGE MAJORITY OF THE PAPER FIBERS AND AN INNER FRACTION CONTAINING THE LARGE MAJORITY OF SAID GREASY LIQUIDS AND TO CAUSE DISCHARGE FLOWS OF SAID OUTER AND INNER FRACTIONS THROUGH SAID APEX AND BASE PORTS RESPECTIVELY. D. MAINTAINING SAID DISCHARGE FLOWS THROUGH BOTH OF SAID OUTLET PORTS IN PREDETERMINED RELATION SUCH THAT THE PORTION OF SAID OUTER FRACTION DISCHARGED THROUGH SAID APEX PORT AS ACCEPTED STOCK CONTAINS THE LARGE MAJORITY OF THE PAPER FIBERS WHICH ENTER SAID VESSEL, E. RECOVERING FOR REUSE THE REJECT MATERIALS IN SUCH DISCHARGE FLOW THROUGH SAID BASE OUTLET, AND F. FURTHER TREATING SAID RECOVERED REJECT MATERIALS TO CONVERT THE SAME INTO ONE OR MORE OF THE FOLLOWING BY-PRODUCTS; I. THE GREASE CONSTITUENTS THEREOF, II. FUEL INCLUDING SAID GREASE CONSITUTENTS, III. FUEL SUBSTANTIALLY FREE OF SAID GREASE-CONSTITUENTS.