Stacked barrels containing collapsible bags

Claim 1

AN INSTALLATION COMPRISING AT LEAST TWO STORAGE BARRELS STACKED ONE UPON ANOTHER, EACH BARREL COMPRISING A RIGID FLUID-TIGHT CONTAINER, AN IMPERVIOUS DIVISION PLATE TO DIVIDE THE CONTAINER INTO A PAIR OF SUPERPOSED COMPARTMENTS, AIR PASSAGEWAYS IN THE MARGINAL EDGE OF THE DIVISION PLATE TO PERMIT COMMUNICATION BETWEEN THE COMPARTMENTS, A COLLAPSIBLE IMPERVIOUS BAG FOR THE FLUID TO BE DISPENSED, A DELIVERY-PIPE CONNECTION CARRIED BY THE CONTAINER AND COMMUNICATION WITH THE INTERIOR OF THE BAG WHICH IS SUSPENDED WITHIN THE UPPER OF SAID PAIR OF COMPARTMENTS SO THAT IT RESTS UPON THE DIVISION PLATE WITHOUT OBSTRUCTING THE AIR PASSAGEWAYS, A FLUID DISCHARGE TUBE EXTENDING FROM THE FLUID-PIPE CONNECTION DOWNWARDLY WITHIN THE BAG TO NEAR THE DIVISION PLATE AND A VALVE CONNECTOR CARRIED BY THE CONTAINER BY WHICH THE INTERIOR OF THE CONTAINER IS PRESSURISED THEREBY TO PRESS THE BAG UPON THE DIVISION PLATE, THE BOTTOM OF EACH BARREL BEING CONSTRUCTED AND ARRANGED TO INTERLOCK WITH THE TOP OF ANOTHER BARREL.