Modern locomotive engineering, with questions and answers .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & co · leaf 405
Figure 188American Locomotive Safety Valve ihe valve shell. If no lathe is at hand, then griod th^)valve proper on a perfectly flat surface of iron or stcv^,,until its two bearings are exactly on a plane and withgood smooth surfaces; then take the shell and grindits seats in precisely the same…
Locomotives
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