Cyclopedia of locomotive engineering, with examination questions and answers; a practical manual on the construction care and management of modern locomotives (1916)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & co., pub. for Sears, Roebuck & co. · leaf 163
tra gland and setof rod packing. In order to more clearly illustrate!this idea, reference is made to Figs. 69 and 70. Fig.69 shows a plain D slide valve, and it will be noticedthat the full pressure of steam in the valve chest actsupon the back of the valve. Of course there is a cer-tain amount of… … Figure 70 Fig. 70 shows a solid piston valve with outside admis-[sion, being thus identical in action with the D valve.No valve rod is shown in either cut, but it willeasily be seen that with the valve rod attached^to but one end of the piston valve the area of thatend will be decreased just so…
Locomotives
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