Boron trifluoride regulating system

Claim 1

IN A NUCLEAR REACTOR HAVING A CORE OF FISSIONABLE MATERIAL GEOMETRICALLY ARRANGED TO UNDERGO A SELF-SUSTAINING CHAIN REACTION, A GASEOUS REACTOR CONTROL SYSTEM COMPRISING A PLURALITY OF GAS-LIKE CONTROL CONDUITS DISPOSED WITHIN SAID REACTOR CORE, EACH OF SAID CONTROL CONDUITS INCLUDING AN OUTER TUBE CLOSED AT ONE END AND A SMALLER OPEN ENDED INNER TUBE EXTENDING WITHIN SAID OUTER TUBE TO FORM AN ANNULAR FLOW CHANNEL THEREBETWEEN THROUGHOUT SUBSTANTIALLY THE LENGTH OF SAID OUTER TUBE, A VERTICALLY ENLONGATED RESERVOIR TANK HAVING A LIQUID LEVEL THEREIN SEPARATING AN UPPER VAPOR SPACE FROM A LOWER POOL OF HIGH NEUTRON CAPTURE CROSS SECTION VAPORIZABLE LIQUID, FLOW CHANNEL MEANS CONNECTING SAID CONTROL CONDIUTS TO SAID RESERVOIR TANK TO FORM A CLOSED CIRCULATION FLOW PATH TO CAUSE THE FLOW OF GAS FROM THE GAS SPACE OF SAID RESERRVOIR SEQUENTIALLY THROUGH THE INNER ADN THEN THE OUTER TUBE OF THE CONTROL CONDUITS AND RETURNED TO BUBBLE THROUGH THE LIQUID IN SAID RESERVOIR, PUMP MEANS IN SAID FLOW CHANNEL MEANS FOR FORCED RECIRCULATION OF SAID GAS IN SAID FLOW PATH, AND HEAT TRANSFER MEANS IN HEAT TRANSFER RELATINSHIP WITH THE LIQUID IN SAID RESERVOIR AND ARRANGED TO VARY THE TEMPERATURE OF SAID LIQUID AND THUS VRY THE NEUTRON ABSORBING CAPACITY OF THE GAS IN THE CONTROL CONDUITS.