Vapor generator heating gas pass tube support and partition wall construction

Claim 1

IN A VAPOR GENERATOR, WALL MEANS FORMING AN UPRIGHT GAS PASS, MEANS SUPPLYING HIGH TEMPERATURE HEATING GASES TO SAID GAS PASS FOR FLOW THERETHROUGH, PARTITION MEANS DIVIDING SAID GAS PASS INTO A PLURALITY OF PARALLEL FLOW GAS SECTIONS, A FIRST FLUID HEATING TUBE BANK POSITIONED IN ONE OF SAID GAS SECTIONS, A SECOND FLUID HEATING TUBE BANK POSITIONED IN ANOTHER OF SAID GAS SECTIONS, A THIRD FLUID HEATING TUBE BANK DISPOSED BELOW SAID FIRST AND SECOND FLUID HEATING TUBE BANKS AND HAVING PORTIONS THEREOF POSITIONED WITHIN THE GAS SECTIONS IN WHICH SAID FIRST AND SECOND FLUID HEATING TUBE BANKS ARE POSITIONED, DAMPER MEANS ARRANGED FOR PROPORTIONING THE FLOW OF HEATING GASES THROUGH SAID GAS SECTIONS, AND MEANS FOR SUPPORTING THE WEIGHT OF THE FIRST AND SECOND TUBE BANKS AND THE THIRD TUBE BANKS SUBSTANTIALLY FREE OF LOAD-BEARING ATTACHMENT TO SAID WALL MEANS, SAID LAST NAMED MEANS INCLUDING A PLURALITY OF TUBES CONNECTED TO SAID THIRD TUBE BANK AND EXTENDING UPWARDLY THEREFROM THROUGH SAID GAS PASS, AT LEAST A PORTION OF SAID TUBES BEING ARRANGED IN SIDE-BY-SIDE PARALLEL RELATION AND BEING RIGIDLY WELD-UNITED ALONG AT LEAST A PORTION OF THEIR LENGTHS TO FORM A GAS IMPERVIOUS WALL PORTION OF SAID PARTITION MEANS, MEANS CONNECTING SAID FIRST AND SECOND AND THIRD FLUID HEATING TUBE BANKS TO SAID TUBES FORMING SAID WALL PORTION OF SAID PARTITION MEANS IN LOAD-BEARING RELATIONSHIP, AND MEANS FOR TOP SUPPORTING SAID TUBES.