Core structure for a vapor cooled, water moderated nuclear reactor

Claim 1

IN A NUCLEAR REACTOR, THE COMBINATION COMPRISING: A TANK STRUCTURE; PRESSURE RESISTING TUBES ARRANGED IN A LATTICE IN THE TANK STRUCTURE AND HAVING MEANS FOR HOUSING NUCLEAR FUEL ELEMENTS THEREIN; AT LEAST ONE PIPE EXTENDING TO EACH OF SAID TUBES FOR PASSING A PRESSURIZED COOLANT THERETHROUGH, EACH PIPE HAVING A GENERAL RUN INCLINED TO THE AXIS OF THE RESPECTIVE TUBE; JOINT MEANS INTERCONNECTING EACH SAID PIPE WITH ITS RESPECTIVE TUBE; AND SUPPORT MEANS ASSOCIATED WITH EACH PIPE AND DISPOSED IN A REGION PROXIMATE TO THE RESPECTIVE JOINT MEANS TO JOIN THE RESPECTIVE PIPE TO THE TANK STRUCTURE, SAID SUPPORT MEANS INCLUDING A PAIR OF INTERLOCKING TWIST PREVENTING MEMBERS HAVING MEANS PREVENTING RELATIVE TWISTING WHILE PERMITTING LONGITUDINAL EXPANSION AND CONTRACTION OF THE RESPECTIVE TUBE AND PREVENTING DISPLACEMENT OF THE PIPE LATERALLY OF THE TUBE, AND THE SUPPORT MEANS COMPRISING MEANS TO RELIEVE THE TUBE AND JOINT FROM STRESSES OTHERWISE PRODUCED BY MOVEMENTS ARISING FROM THE THERMAL MOVEMENTS OF THE PIPES.