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The object of the invention herewith illustrated is to provide for steam engine governors and steam pressure regulators a simple and reliable balance valve for controlling the flow of steam. In one side of the cylindrical casing is a branch pipe communicating with an annular recess within the casing. Within the casing is a loosely fitted piston, resting upon a spiral spring supported upon a fillet formed in the lower end of the casing. The piston ro
It’s Time to Stand Up for Science
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