An old engraving of men working a vertical chain-pump made up of ceramic pots. They are pushing a horizontal treadmill to power a shaft with a cog system to raise water from a river for irrigation purposes in a chain of pots. It is from a Victorian mechanical engineering book of the 1880s. Chain pumps were used for centuries in the Middle East, in Europe from Greek and Roman Empire times, and in ancient China. A treadwheel or treadmill is a form of engine typically powered by humans. Treadwheels or treadmills could also be vertical, like a water wheel.
An old engraving of men working a vertical chain-pump made up of ceramic pots. They are pushing a horizontal treadmill to power a shaft with a cog system to raise water from a river for irrigation purposes in a chain of pots. It is from a Victorian mechanical engineering book of the 1880s. Chain pumps were used for centuries in the Middle East, in Europe from Greek and Roman Empire times, and in ancient China. A treadwheel or treadmill is a form of engine typically powered by humans. Treadwheels or treadmills could also be vertical, like a water wheel. These devices were sometimes used as a punishment. The term ‘treadmill’ has come to refer to an exercise machine for running or walking on the piece of equipment in a gym or at home.
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