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Improvements in Valves and Apparatus for Governing and Controlling Water Supply as in Irrigation Works, Town Services and similar purposes.
Improvements in Valves and Apparatus for Governing and Controlling Water Supply as in Irrigation Works, Town Services and similar purposes.
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机译:改进了灌溉工程,城市服务和类似用途中用于控制和控制供水的阀门和设备。
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摘要
2523. Braithwaite, C. C. Jan. 31. Pressure-regulating valves.-A pressure-regulating valve for controlling the water-supply in irrigation works, town services, &c. consists of a tubular member c of vena contracta shape, the ends c1, c2 of which work closely in a chamber. The valve is supported by a pivoted lever l carrying a balance weight e, a second weight f being provided on a vertical arm of the lever in order to prevent a pulsating movement of the valve. Increase in the pressure of the fluid entering at a moves the valve towards a fixed seat d and so throttles the passage d1. By means of a spindle and hand-wheel h, the valve may be used as a stop-valve. In a modification, the valve is placed horizontally, being supported by a weighted lever as before.
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