Modern locomotive engineering, with questions and answers .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & co · leaf 186
alance plate whichcorresponds with the cylinder port; therefore thepressure in the port has no effect whatever upon thevalve, it being on both sides of the valve face in equalarea, and pressure, is, therefore, equalized so far as thevalve is concerned, but the pressure in the port of thebalance… … /So LOCOMOTIVE ENGINEERING * is placed over each port in the inside of the main ringon the top of the balance plate and is open to the portthrough passage F, Fig. 8i, so that a pressure equal tothat in the steam port is always on both sides of thebalance plate, as well as on both sides of the…
Locomotives
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