Modern locomotive engineering, with questions and answers .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & co · leaf 183
Figure 82 Under normal conditions 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…
Locomotives
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