Ocean raft energy generator

A system for generating energy comprising:

• a hollow flotation raft;
• at least one raceway of arcuate cross-section in said raft;
• a heavy metal ball in each said raceway to roll therealong in either direction in response to movement of said raft on the sea;
• a hydraulic system;
• and
• a prime mover driven by pressurized liquid in said hydraulic system;
• said hydraulic system comprising:
• at least one pair of aligned cylinders along each raceway disposed with their heads at opposite ends;
• a pair of pistons slidable in said cylinder;
• a push rod interconnecting said pistons;
• a pivoted lever connected to said push rod and extending into the path of travel with a ball on said raceway so that engagement of said lever by said ball rolling in opposite directions will reciprocate said interconnected pistons;
• a pressure tank;
• supply conduits connected between the closed ends of said cylinders and said pressure tanks;
• a delivery conduit opening from said pressure tank for delivery of pressurized fluid to said prime mover;
• a reservoir for hydraulic fluid positioned above said cylinders;
• an accumulator chamber connected between said reservoir and each of said cylinders to ensure a ready supply of fluid thereto;
• and
• a float-operated, one-way check valve below said chamber and above said cylinder to open for flow to said cylinder in the event of any fluid insufficiency therein;
• a vent line connecting the head of each said cylinder to atmosphere;
• a valve member normally closing off said vent line;
• and
• means on said push rod for opening said valve member at the end of a pressure stroke of each piston.