Hutton, Frederick Remsen, 1853- [from old catalog] · New York, J. Wiley & sons; [etc., etc.] · leaf 227
gth of valve gives an increasedarea for pressure, and consequently makes the valve demandmore power to move it. In early designs for low-pressuresteam, where this matter was of little moment, engines withvery long slide-valves will be found. They have been some-times called Murdochs valves. With… … Fig. 147. while the valve acts as one it is really made in two parts, orlike a B valve. The exhaust-port is divided by its specialbridge, and the admission of steam is controlled by the left-hand edge of the left half of the valve and by the right edgeof the righthand half. The length of passage is…
Mechanical engineering · Steam power plants
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