Modern locomotive engineering, with questions and answers .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & co · leaf 184
nditions these steel rings hold thebalance plate in alignment with the valve seat, butunder abnormal conditions, such as dry valves, thestrain will be taken by the wing of the balance plateagainst the wing of the pressure plate, preventingexcessive contraction of the centering rings. Againstthe… … Figure 83 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-essary to get clearlyfixed in the mind thefact that the balancedarea of the valve…
Locomotives
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