. The railroad and engineering journal . ge of livesteam to the low-pressure cylinder by the action of the exhaust-steam from the high-pressure cylinder upon an intercepting-valve between the high and low-pressure cylinders. This valveis opened automatically for the passage of live steam direct tothe low-pressure cylinder to start the engine, and alter the en-gine is started the valve is closed by the pressure of the from the high-pressure cylinder. The direct access oflive steam to the low-pressure cylinder is thus cut off by the action of the intercepting-valve, and, when the
. The railroad and engineering journal . ge of livesteam to the low-pressure cylinder by the action of the exhaust-steam from the high-pressure cylinder upon an intercepting-valve between the high and low-pressure cylinders. This valveis opened automatically for the passage of live steam direct tothe low-pressure cylinder to start the engine, and alter the en-gine is started the valve is closed by the pressure of the from the high-pressure cylinder. The direct access oflive steam to the low-pressure cylinder is thus cut off by the action of the intercepting-valve, and, when the throttle-valve isclosed, the intercepting-valve remains closed until live steam isagain admitted to the high-pressure, when the operations whichhave been desciibed are agam repeated. Fig. I is a vertical transverse section through the cylindersand smoke-box ; fig. 2 is a vertical longitudinal section throughthe intercepting-valve G, of fig. i, and the low-pressure cylinder£ ; fig. 3 is a section through the regulating-valve on the line. 6 6 of fig. 2, and fig. 4 a similar section through the regulating-valve on the line 5 5 ; and fig. 8 is a horizontal section throughthe intercepting valve and saddles on the line 8 S of fig. i. The engine has two cylinders located in the usual way. D,fig. I, is the high-pressure and V? the low-pressure saddles £ fare also constructed in a similar way to theordinary practice, and have the usual induction and eduction-ports. The exhaust-port J, of the high-pressure cylinder, isconnected by a pipe or conduit D with an arched or liorseshoe-
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectrailroa, bookyear1887
