Multiple-effect evaporator structure

Claim 1

A MULTIPLE EFFECT EVAPORATOR, COMPRISING A BAROMETRIC CONDENSER HAVING AN UPPER CONDENSING CHAMBER, MEANS SUPPLYING A COOLANT TO SAID CONDENSING CHAMBER, MEANS MAINTAINING A VACUUM IN SAID CONDENSING CHAMBER, AND A VERTICAL BAROMETRIC LEG SUPPORTING SAID CHAMBER AND RECEIVING AT ITS UPPER END THE CONDENSATE FROM SAID CONDENSING CHAMBER AND OPEN AT ITS LOWER END, MEANS SUPPORTING SAID BAROMETRIC LEG WITH ITS OPEN LOWER END SUBMERGED IN A BODY OF WATER IN A HOTWELL, A GROUP OF AT LEAST A FIRST EFFECT AND A SECOND EFFECT STEAM CHESTS SURROUNDING SAID BAROMETRIC LEG ABOVE SAID HOTWELL AND EACH ENCLOSED IN A TUBULAR VERTICAL SHELL HAVING TUBES SURROUNDED BY A STEAM SPACE, BRACKET MEANS SUPPORTING SUBSTANTIALLY THE FULL WEIGHT OF EACH OF SAID STEAM CHEST SHELLS FROM SAID BAROMETRIC LEG AND ITS SUPPORTING MEANS, MEANS INTRODUCING STEAM INTO THE STEAM SPACE OF THE FIRST EFFECT STEAM CHEST, MEANS SEPARATING THE VAPOR GENERATED IN SUCH TUBES OF THE FIRST EFFECT STEAM CHEST, MEANS CONVEYING SAID VAPOR INTO THE STEAM SPACE OF THE SECOND EFFECT STEAM CHEST, MEANS SEPARATING THE VAPOR GENERATED IN THE TUBES OF THE SECOND EFFECT STEAM CHEST, MEANS CONVEYING SAID LAST MENTIONED VAPOR TO SAID CONDENSING CHAM-