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In machines for steam at a double-acting piston, without the steering wheel, with the main control tiroirde controlled by the fluid under pressure, and with an auxiliary valve controlled, on the one hand, and secondly by the fluid under pressure.
In machines for steam at a double-acting piston, without the steering wheel, with the main control tiroirde controlled by the fluid under pressure, and with an auxiliary valve controlled, on the one hand, and secondly by the fluid under pressure.
