. The Street railway journal . under all loadswithin the capacity of the engine. The arrangement adopted is illustrated in Fig. 2. The rockerarm is shown at A, and is attached to the high-pressure eccentricrod B, which is under the control of the governor. The rockerarm carries a link F, the upper end of which is connected to thelow-pressure rod C, which is attached to an eccentric fixed on theshaft. The high-pressure valve rod D is driven directly by theeccentric rod B, but the low-pressure valve rod E is connected tothe middle of the link F. In this way it partakes of a motion in-termediate
. The Street railway journal . under all loadswithin the capacity of the engine. The arrangement adopted is illustrated in Fig. 2. The rockerarm is shown at A, and is attached to the high-pressure eccentricrod B, which is under the control of the governor. The rockerarm carries a link F, the upper end of which is connected to thelow-pressure rod C, which is attached to an eccentric fixed on theshaft. The high-pressure valve rod D is driven directly by theeccentric rod B, but the low-pressure valve rod E is connected tothe middle of the link F. In this way it partakes of a motion in-termediate to that which would be given by either B or C, and thus imparts to the low-pressure valve the required amount oftravel to keep the pressure in the receiver at a constant in itsrelation to the initial pressure in the high-pressure cylinder. While the system of steam distribution in this engine is a veryimportant one, and has been given prominence on account of itsnew features, there are other points in addition to the method of. FIG. 1.—PERSPECTIVE VIEW OF ENGINE compounding which merit attention. It is of a self-containedside crank type, mounted on a heavy sub-base which extends backinto the distance piece to support the very heavy and substantialstand on which the distance piece is mounted. The arrange-ment of the cylinders is such that the pistons and rods can easilybe withdrawn through the low-pressure cylinder without dis-mounting any part of the machine except the cylinder head. Thepistons are threaded and the piston rods screwed into them, thepiston rod being continuous from cross-head to the low-pressure
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
