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 178
Figure 82 Under normal conditions these steel rings hold thebalance plate in alignment with the valve seat, but^under abnormal conditions, such as dry valves, thestrain will be taken by the wing of the balance plate,against the wing of the pressure plate, preventingexcessive contraction of the… … Figure 83 PISTON VALVES AND BALANCED VALVES 177 to consider the balancing feature, which is of greatimportance, as it successfully protects the valve underthe highest pressures. In considering the principleupon which the valveis balanced it is nec-jessary to get clearlyifixed in the mind thejfact…
Locomotives
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