Circulating and cooling system for a liquid metal or metal alloy with mold element

Claim 1

IN AN APPARATUS FOR EXTRACTING HEAT FROM A VERTICALLY RECIPROCABLE MOLD ELEMENT AT HIGH TEMPERATURES, SAID APPARATUS INCLUDING MEANS DEFINING A COOLING CHAMBER IN SAID MOLD ELEMENT HAVING AN INLET AND AN OUTLET, AND MEANS INCLUDING A PUMP AND A HEAT EXCHANGER CONNECTED BETWEEN SAID INLET AND SAID OUTLET AND DEFINING, WITH SAID COOLING CHAMBER, A CLOSED HEAT EXCHANGE CIRCUIT THROUGH WHICH A LIQUID METAL HEAT EXCHANGING FLUID MAY BE CIRCULATED, THE IMPROVEMENT WHEREIN SAID LAST NAMED MEANS FURTHER COMPRISES A PAIR OF STATIONARY TANKS EACH ADAPTED TO CONTAIN A LIQUID METAL HEAT EXCHANGING FLUID TO A PREDETERMINED DEPTH ABOVE THE BOTTOM THEREOF, AN ELONGATE WELL ON EACH TANK IN COMMUNICATION WITH THE INTERIOR THEREOF AND EXTENDING DOWNWARDLY FROM THE BOTTOM OF THE TANK BY A DISTANCE GREATER THAN THE LENGTH OF THE VERTICAL RECIPROCATORY STROKE OF SAID MOLD ELEMENT, A PACKING SLEEVE ON EACH TANK EXTENDING UPWARDLY FROM THE TOP OF THE TANK, A VERTICALLY ELONGATE OUTER TUBE RECEIVED WITHIN EACH PACKING SLEEVE IN SLIDABLE SEALED ENGAGEMENT THEREWITH, EACH OF SAID OUTER TUBES BEING FIXEDLY SECURED AT ITS UPPER END TO SAID MOLD ELEMENT FOR VERTICAL RECIPROCATION THEREWITH AND HAVING A LENGTH SUFFICIENT TO MAINTAIN THE OUTER TUBE IN SLIDABLE SEALED ENGAGEMENT WITH THE ASSOCIATE PACKING SLEEVE THROUGHOUT FULL RANGE OF VERTICAL RECIPROCATION OF SAID MOLD ELEMENT AN OPEN ENDED INNER TUBE COAXIALLY MOUNTED WITHIN EACH OUTER TUBE, MEANS AT THE UPPER AND LOWER ENDS OF EACH OUTER TUBE SEALING THE ASSOCIATED INNER TUBE THERETO TO DEFINE AN ANNULAR CHAMBER SURROUNDING THE INNER TUBE, EACH INNER TUBE PROJECTING DOWNWARDLY BELOW THE LOWER END OF SAID OUTER TUBE TO A LOWER END LOCATED TO BE RECIPROCATED WITHIN THE ASSOCIATED WELL DURING RECIPROCATION OF SAID MOLD ELEMENT, MEANS CONNECTING THE UPPER END OF ONE OF SAID INNER TUBES TO SAID INLET OF SAID CHAMBER, MEAN CONNECTING THE UPPER END OF THE OTHER INNER TUBE WITH SAID OUTLET OF SAID CHAMBER, AND CONDUIT MEANS CONNECTING SAID PUMP AND SAID HEAT EXCHANGER IN SERIES BETWEEN THE RESPECTIVE LOWER ENDS OF SAID WELLS.