Water scoop (hydropower)

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A water scoop is a simple hydropower machine, i.e. a machine used to extract power from the flow of water. Unlike a water wheel it operates intermittent, like a seesaw: A container (bucket/cup) at the end of a lever is filled with water in the upper position. The container side gets heavier, the lever with the filled container moves downward, which may be used to operate a machine drive. In the lower position the container is emptied, and the lever moves back into the upward position.

Because of the inferior efficiency compared to a water mill, water scoops are less common, and have been used in the past mostly for applications where linear motion is required rather than rotation, for example hammers in smitheries, saws in sawmills, stamp mills in mining or for fulling.

Nowadays water scoop are sometimes used top operate animated sculptures in fountains.