Liquid expressing press

Claim 1

IN A CONTINUOUS SCREW PRESS OF THE CHARACTER DESCRIBED THE COMBINATION OF A CAGE BODY HAVING A DISCHARGE OPENING DEFINED BY A CIRCULAR DISCHARGE RING, SAID CAGE BODY BEING CONSTRUCTED TO HOLD THEREIN MATERIAL UNDER MECHANICAL PRESSURES OF AS MUCH AS 10,000 P.S.I., MEANS FOR EXERTING HIGH MECHANICAL PRESSURE UPON MATERIAL WITHIN SAID BODY AND SIMULTANEOUSLY CONVEYING THE MATERIAL THROUGH SAID BODY AND SAID DISCHARGE OPENING, SAID MEANS INCLUDING A ROTATABLE SHAFT AND AT LEAST ONE PRESSURE WORM AFFIXED THERETO, DRIVE MEANS FOR ROTATING SAID SHAFT, MEANS DEFINING DRAINAGE OPENINGS IN THE WALLS OF SAID CAGE BODY FOR PASSAGE OF LIQUIDS EXPRESSED FROM THE MATERIAL TO THE EXTERIOR OF SAID BODY, A STATIONARY DISCHARGE COLLAR INSIDE SAID CAGE BODY COAXIAL WITH SAID SHAFT EXTENDING INTO SAID RING TO DEFINE THEREBETWEEN A DISCHARGE ORIFICE, MEANS MOUNTING SAID DISCHARGE COLLAR FROM SAID CAGE BODY MAINTAINING SAID DISCHARGE COLLAR NORMALLY STATIONARY WITH RESPECT TO SAID ROTATABLE SHAFT THEREBY REDUCING THE POWER REQUIRED TO ROTATE SAID SHAFT AND REDUCING FRICTIONAL HEAT CREATED IN THE MATERIAL BEING FORCED BETWEEN SAID DISCHARGE COLLAR AND THE WALLS OF SAID CAGE BODY AND THENCE THROUGH SAID RING, AND MEANS FOR HEATING SAID DISCHARGE COLLAR TO TEMPERATURES IN THE REGION OF THE COMBUSTION TEMPERATURE OF MATERIAL BEING PROCESSED THROUGH SAID PRESS TO BURN AWAY HARD PLUGS OF PRESSED MATERIAL FROM ABOUT SAID DISCHARGE COLLAR TO FREE SUCH PLUGS AND PROVIDE FOR SUBSEQUENT CONTINUOUS OPERATION OF SAID PRESS AND PASSAGE OF THE MATERIAL BEING PROCESSED THERETHROUGH.