. The railroad and engineering journal . nly half the power. The valve-gear consists of the old double-plate linkmotion made with large wearing surfaces and adjustablebushes, a gear which still seems to hold its own well, inspite of its many rivals. The packing of the piston-valvesconsists of hard cast-iron rings, while the pistons arefitted throughout with Lockwood & Carlisles patent ringsand springs. As the cylinders have neither boiler norexhaust steam jackets, the usual ramification of drainpiping has been much simplified, and the tandem arrange-ment has been taken advantage of to lead the
. The railroad and engineering journal . nly half the power. The valve-gear consists of the old double-plate linkmotion made with large wearing surfaces and adjustablebushes, a gear which still seems to hold its own well, inspite of its many rivals. The packing of the piston-valvesconsists of hard cast-iron rings, while the pistons arefitted throughout with Lockwood & Carlisles patent ringsand springs. As the cylinders have neither boiler norexhaust steam jackets, the usual ramification of drainpiping has been much simplified, and the tandem arrange-ment has been taken advantage of to lead the hot drainwater and steam from the two upper cylinders direct intothe two lower ones before going into the condenser, thusshortening the pipes by a good many feet. The con-denser presents nothing in the way of novelty save that itlooks small in proportion to the rest of the machinery,with its 618 sq. ft. of cooling surface, nearly 50 per than the usual practice for compound engines, thus 353 THE RAILROAD AND [August, FOUR-CYLINDER TANDEM QLADRLPLE-EXPANSION HY RANKIN & BLACKMORE, GREENOCK, SCOTLAND. Vol. LXI, No. 8.] ENGINEERING JOURNAL. 354
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectrailroa, bookyear1887
