The chain pump is type of a water pump in which several circular discs are positioned on an endless chain. One part of the chain dips in to the water, and the chain runs through a tube, slightly bigger than the diameter of the discs. As the chain is drawn up the tube, water becomes trapped between the discs and is lifted to and discharged at the top. Chain pumps were used for centuries in the ancient Middle East, Europe, China, and ancient Egypt.
Read more about Chain Pump: In The Middle East and Rome, Square-pallet in China
Famous quotes containing the words chain and/or pump:
“It is the future that creates his present.
All is an interminable chain of longing.”
—Robert Frost (1874–1963)
“My nurses, those starchy ghosts,
hover over me for my lame hours
and my lame days. The mechanics
of the body pump for their tricks.”
—Anne Sexton (1928–1974)