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William Hirst
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Individual
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Individual
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15,983. Hurst, W. July 22. Reducing-valves.-Fluid passes from the inlet A past the valve B to the cylinder C, in which it acts upon a piston D the rack rod E of which carries a regulating-weight N and gears with a wheel on the shaft G. This shaft communicates motion through bevel-wheels H and I to the valve spindle J, which is screw-threaded to engage with the crosshead K, and has a key to guide the wheel I. M is a hand-wheel.
Fluid buffer, especially for railroad vehicles, with a flow cross-section that can be changed depending on the pressure and a resilient cylinder housing