How the Mill Worked

How the Mill Worked (HM2F93)

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N 39° 7.631', W 77° 18.877'

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Inscription
Black Rock Mill was powered by a water wheel. Water falling onto the wheel from above caused the wheel to rotate. The turning wheel powered a millstone.

The millstone had two parts: a moving top stone, and a fixed bottom stone. Both stones had grooves cut in their faces. As the top stone turned the grooves crossed like scissor blades, cracking the wheat and extracting the germ. An elaborate system of hoists and belts, also powered by the water wheel, fed raw grain to the millstones. Flour was collected below the stones and lifted to the top of the mill for drying, then packed for shipment.

The wheel could also power a massive woodcutting saw. A cradle fed logs into the saw, which cut them into boards.
Details
HM NumberHM2F93
Tags
Placed ByMaryland Park Service
Marker ConditionNo reports yet
Date Added Saturday, March 30th, 2019 at 2:01pm PDT -07:00
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Locationbig map
UTM (WGS84 Datum)18S E 299921 N 4333441
Decimal Degrees39.12718333, -77.31461667
Degrees and Decimal MinutesN 39° 7.631', W 77° 18.877'
Degrees, Minutes and Seconds39° 7' 37.86" N, 77° 18' 52.62" W
Driving DirectionsGoogle Maps
Which side of the road?Marker is on the right when traveling South
Closest Postal AddressAt or near , ,
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