Ludy, Llewellyn V., 1875- [from old catalog], American Technical Society · Chicago, American technical society · leaf 143
Fig. 40. Section of Indirect Valve,JEngine Running Under Fig. 41. Diagram for Indirect Valve,Engine Running Under Comparisons and Comments. A comparison of Figs. 34 and 35with 38 and 39 will indicate the relative positions of the eccentricfor an engine running over with a direct valve and for one…
Indicators for steam-engines · Steam-engines
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