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![Water Wheel: Powering the blast machinery
This water wheel powered Hopewell's blast machinery. The two blowing tubs continuously forced air into the furnace to intensity its heat.
By 1822, blowing tubs [which you see to either side of the blast pipe above the wheel] replaced bellows. Piston rods attached to each end of the water wheel shaft moved pistons inside the tubs and compressed air. The air, forced into an equalizing box between the tubs, was directed through a blast pipe that led to the furnace.
The water wheel you see today has been restored by the National Park Service.](/Graphlib/GraphData3.nsf/Images/2003_PA_Hopewell_NHS_0160/$File/HOPE_031011_185.JPG) |
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