Scoop wheel

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a wheel for raising water, having scoops or buckets attached to its circumference; a tympanum.

See also: Scoop

Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.
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Land drainage is a similar duty although, generally, the height to which the water had to be raised was modest, and a rotative beam engine driving a scoop wheel was better suited to the task.