| 摘要 |
An automatic pumping apparatus utilizing wave motion comprises one or more than one sink-and-float members provided so as to move up and down in accordance with a wave motion, positioned below the respective sink-and-float members, connected to the respective sink-and-float members via a transmission mechanism and adapted to slidingly move in respective one-end-open fixed cylinders in accordance with the up and down movement of the sink-and-float members, the horizontal cross sectional area of each piston being made small relative to that of each sink-and-float member and inversely proportional to the pumping height, whereby water can be pumped to a reservoir tank through pumping pipes extending from the other ends of the cylinders to positions higher than the ranges of up and down movements of the sinkand-float members by the operations of pistons.
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