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:
“Oft, in the stilly night, Ere Slumber’s chain has bound me, Fond Memory brings the light Of other days around me.”
—Thomas Moore (1779–1852)
“Vivacity, leadership, must be had, and we are not allowed to be nice in choosing. We must fetch the pump with dirty water, if clean cannot be had.”
—Ralph Waldo Emerson (1803–1882)