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Pit Wheel

(1) In a WATERMILL the primary GEAR WHEEL mounted on the inner end of the WHEEL SHAFT, often in or partly in, a pit in the mill floor. (2) In a DRAINAGE MILL the vertical DRIVEN GEAR WHEEL mounted on the inner end of the SCOOP WHEEL SHAFT, usually in or partly in a pit, which takes its drive from the CROWN WHEEL at the base of the UPRIGHT SHAFT.

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