Pressurized water nuclear reactor

Claim 1

A PRESSURIZED WATER NUCLEAR REACTOR COMPRISING A PRESSURE VESSEL, A CORE COMPRISING A PLURALITY OF FUEL ELEMENTS WITHIN SAID VESSEL, MEANS FOR CIRCULATING LIQUID COOLANT UNDER PRESSURE THROUGH SAID VESSEL IN SUCH MANNER AS TO COOL THE CORE WHEN IT IS PRODUCING HEAT, A PLURALITY OF FUEL ELEMENT RECEIVING STATIONS PROVIDED IN SAID CORE EACH ARRANGED TO RECEIVE ONE OF SAID FUEL ELEMENTS, A CHARGING AND DISCHARGING APERTURE PROVIDED IN A WALL OF SAID PRESSURE VESSEL ABOVE SAID CORE, MOVABLY POSTIONABLE FUEL ELEMENT HANDLING MEANS ARRANGED TO PASS THROUGH SAID APERTURE, MOUNTING MEANS POSITIONED WITHIN SAID PRESSURE VESSEL BELOW SAID CORE AND ARRANGED TO SUPPORT THE CORE AND TO PERMIT ITS TRANSVERSE AND ROTATIONAL MOVEMENT WITHIN SAID VESSEL TO BRING EACH OF SAID STATIONS, WHEN DESIRED, IN ALIGNMENT BELOW SAID APERTURE, AND ACTUATING MEANS OPERABLE FROM OUTSIDE THE PRESSURE VESSEL FOR POSITIONING SAID MOUNTING MEANS TO BRING SAID STATIONS BELOW SAID APERTURE, WHERBY SAID HANDLING MEANS ARE OPERABLE THROUGH SAID AERTURE TO REMOVE AND INSERT SAID FUEL ELEMENTS FROM SAID INTO SAID STATIONS WHEN THE REACTOR IS UNDER PRESSURIZED CONDITIONS.