Hydraulic system having a natural dieference of level, to be used as driving power or for obtaining other benefits

Claim 1

A HYDRAULIC SYSTEM CONTAINING A SIPHON TUBE HAVING AN ASCENDING LIQUID LEG JOINED BY A GENERALLY HORIZONTAL CROSS LEG TO A DESCENDING LIQUID LEG CURVED IN ZIG-ZAG FORM IN SUCH A MANNER THAT THE SUM OF THE VOLUME OF A VERTICAL PART WITH THE VOLUME OF ONE SEMI- HORIZONTAL PART OF EACH CURVED PORTION MUST NOT EXCEED THE VOLUME OF SAID HORIZONTAL CROSS LEG, SAID ASCENDING AND DESCENDINGING LEGS EACH INCLUDING A SHUT-OFF VALVE AT ITS FREE END, SAID CROSS LEG INCLUDING AN AIR-INLET VALVE OPENING INTO SAID CROSS LEG, A LIQUID DRAIN VALVE ADAPTED TO DRAIN SAID CROSS LEG, A LOWER CONTAINER TO COLLECT THE WATER DRAINED THROUGH SAID DRAIN VALVE, A DESCENDING PIPE CONTAINING THEREIN A TURBINE WHEEL, SAID DESCENDING PIPE INCLUDING A VALVE FOR REGULATION OF DISCHARGING WATER, A BODY OF FLOWING WATER, SAID FREE END OF SAID ASCENDING LEG BEING SUBMERGED BELOW THE SURFACE OF SAID BODY OF WATER, SAID DESCENDING ZIG-ZAG LEG EXTENDING EXTERIORLY OF SAID BODY OF WATER BELOW THE SURFACE OF SAID BODY OF WATER, SAID DESCENDING ZIG-ZAG LEG HAVING EACH ONE OF ITS VERTICAL SECTIONS OF A HEIGHT SMALLER THAN THE HEIGHT BETWEEN THE SURFACE OF SAID BODY OF WATER AND THE POINT OF DISCHARGE OF THE SIPHON.