chain-pump

a long chain, equiped with a sufficient number of valves, at a proper distances, which passes downward through a wooden tube, and returns upward in the same manner on the other side. it is managed by a roller or winch, whereon several men may be employed at once, and thus it discharges, in a limited time, a much greater quantity of water than common pump (Falconer, 1980)

color: 
#FF7537
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