Apparatus for extracting liquid from citrus fruit

Claim 1

IN A SCREW PRESS FOR EXTRACTING LIQUID FROM CITRUS FRUIT, A ROTATABLY MOUNTED SCREW HAVING AN INLET END AND AN OUTLET END AND COMPRISING A SHANK HAVING A CYLINDRICAL PORTION EXTENDING FROM THE INLET END OF THE SCREW AND TERMINATING IN A REVERSELY TAPERED FRUSTO-CONICAL PORTION, SAID SCREW FURTHER COMPRISING A HELICAL RIB EXTENDING COAXIALLY ABOUT THE SHANK, THE RIB AND SHANK FORMING A CHANNEL AT THE INLET END PORTION OF THE SCREW HAVING CROSS-SECTIONAL DIMENSIONS GENERALLY EQUAL TO THOSE OF THE LARGEST SIZE OF THE CITRUS FRUIT BEING PROCESSED, THE PITCH OF SAID RIB BEING GREATER ADJACENT THE GREATER DIAMETER END OF SAID FRUSTO-CONICAL PORTION THAN ADJACENT THE LESSER DIAMETER END THEREOF, AND MEANS ADJACENT THE OUTLET END OF THE SCREW TENDING TO IMPEDE THE DISCHARGE OF SOLID MATERIAL FROM THE SCREW AND INCLUDING A MEMBER EXTENDING AND DISPOSED BETWEEN A PAIR OF NEXT ADJACENT TURNS OF THE RIB, MEANS MOUNTING SAID MEMBER ADJACENT THE END THEREOF REMOTE FROM THE OUTLET END OF SAID SCREW FOR PIVOTAL MOVEMENT OF THE OTHER END OF THE MEMBER GENERALLY RADIALLY OF THE SCREW AXIS, AND RESILIENT YIELDABLE MEANS ACTING ON SAID MEMBER TO TEND TO MOVE SAID OTHER END OF THE SAME OUTWARDLY OF SAID SCREW AXIS.