Floating reservoir vessel of the displacement type

Claim 1

A STORAGE VESSEL FOR STORING LIQUIDS WHILE ADAPTED TO BE SUPPORTED IN A BODY OF WATER COMPRISING: SUBSTANTIALLY ELONGATED MAIN STORAGE CONTAINER MEANS HAVING LIQUID PASSAGE OPENINGS IN THE VICINITY OF ITS UPPER AND LOWER ENDS WHEN THE LONGITUDINAL AXIS OF SAID CONTAINER MEANS IS SUBSTANTIALLY VERTICAL WITH RESPECT TO SAID BODY OF WATER; SAID CONTAINER MEANS, WHEN EMPTY, POSSESSING SUFFICIENT BUOYANCY TO REMAIN FLOATING, WITH ITS LONGITUDINAL AXIS SUBSTANTIALLY HORIZONTAL, ON THE SURFACE OF THE BODY OF WATER; A BALLAST CHAMBER ADAPTED TO CONTAIN A BALLAST MATERIAL FORMING A PORTION OF SAID STORAGE VESSEL; CONDUIT MEANS COMMUNICATING WITH THE UPPER END OF SAID CONTAINER MEANS FOR ADMITTING LIQUIDS INTO SAID CONTAINER MEANS; SAID CONTAINER MEANS, WHEN FILLED WITH LIQUIDS, BEING ADAPTED TO ASSUME A POSITION IN SAID BODY OF WATER WITH ITS LONGITUDINAL AXIS DISPOSED IN A SUBSTANTIALLY VERTICAL PLANE; BALLAST MATERIAL CONTROL MEANS COOPERATING WITH SAID BALLAST CHAMBER FOR CONTROLLING THE AMOUNT OF BALLAST MATERIAL IN SAID CHAMBER; VERTICAL MOVEMENT MEASURING MEANS COOPERATING WITH SAID BALLAST MATERIAL CONTROL MEANS FOR MEASURING VERTICAL MOVEMENT OF SAID VESSEL AND ADMITTING AND WITHDRAWING BALLAST MATERIAL TO AND FROM SAID BALLAST CHAMBER DEPENDING UPON THE DEGREE OF VERTICAL MOVEMENT OF SAID CONTAINER MEANS; SAID BALLAST MATERIAL BEING A LIQUID AND SAID BALLAST MATERIAL CONTROL MEANS INCLUDING SECOND CONDUIT MEANS COMMUNICATING WITH SAID BALLAST CHAMBER FOR ADMITTING AND REMOVING SAID BALLAST LIQUID; SAID VERTICAL MOVEMENT MEASURING MEANS INCLUDING FLOAT MEANS ARRANGED ADJACENT THE VESSEL AND ADAPTED TO FREELY FLOAT ON THE SURFACE OF SAID BODY OF WATER; RECORDING MEANS OPERATIVELY ASSOCIATED WITH SAID FLOAT MEANS AND ADAPTED TO DETECT, THROUGH SAID FLOAT MEANS, A CHANGE IN THE VERTICAL LEVEL OF SAID VESSEL RELATIVE TO SAID BODY OF WATER AND TO EMIT A SIGNAL IN RESPONSE THERETO;