. Locomotive text for engineers and firemen; a complete treatise on the engine, electric head-light and standard code of train rules . ■ SIDE Filling Plug. B. Steam Valve. C. C. C. Regulating Valves. F. Safety Valves. O. O. O. Auxiliary Oilers. W. Waste Cock. FIG. 2—PLATE 30. LOCOMOTIVE LUBRICATORS. 119 tial side view and Fig. 4 a top sectional view. Inside ofthe condenser are three equalizing tubes 21 (Figs. 1 and4), two for the cylinders and one for the air-pump. Thesetubes are open on the top and the lower end of each is 3S. FIG. 1-PLATE 31. connected to a passageway leading to


. Locomotive text for engineers and firemen; a complete treatise on the engine, electric head-light and standard code of train rules . ■ SIDE Filling Plug. B. Steam Valve. C. C. C. Regulating Valves. F. Safety Valves. O. O. O. Auxiliary Oilers. W. Waste Cock. FIG. 2—PLATE 30. LOCOMOTIVE LUBRICATORS. 119 tial side view and Fig. 4 a top sectional view. Inside ofthe condenser are three equalizing tubes 21 (Figs. 1 and4), two for the cylinders and one for the air-pump. Thesetubes are open on the top and the lower end of each is 3S. FIG. 1-PLATE 31. connected to a passageway leading to the sight feedglasses. The steam passes through these equalizing tubes andmaintains a uniform pressure on the water in the sight 120 LOCOMOTIVE LUBRICATORS. feed glasses. Any surplus water condenser is freeto pass through the equalizing tubes to the sight feedglasses, thus filling them up with water. The condenser


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