. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . e of the patent, June 25, 1889. The general appearance of a recent Ten-wheel freight compound locomotive is shown inthe full-page illustration. The valve is of the typeknown as piston-valve, con-sisting of a hollow plugwith cylindric rings atproper intervals, fittinginto a cast-iron bushing,with apertures registeringwith the rira of tlie plugs,and leading to and fromthe ends of the cylinders,from the steam-pipe and
. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . e of the patent, June 25, 1889. The general appearance of a recent Ten-wheel freight compound locomotive is shown inthe full-page illustration. The valve is of the typeknown as piston-valve, con-sisting of a hollow plugwith cylindric rings atproper intervals, fittinginto a cast-iron bushing,with apertures registeringwith the rira of tlie plugs,and leading to and fromthe ends of the cylinders,from the steam-pipe and tothe exhaust - pipe. Themovement of the steamfrom the steam - pipesthrough the steam - chest,high-pressure cylinder, pis-ton-valve, low-pressure cyl-inder, and out at the finalexhaust-port, is shown bythe diagram Fig. 2. Fig. 3shows an external view ofthe cylinders and steam-chest. The arrangementof the cylinders is imma-terial ; in locomotives withsmall , thelarge or low-pressure cyl-inder may be placed overthe small or high-pressurecylinder, in ordei to obtainmore clearance from thetrack. The following ad-vantages were discovered inthis type of compound lo. Fig. 3.—Section through cyhnder. comotives by the Committee of Sciences and Arts of the Franklin Institute, which caused itto be awarded a gold medal; It can be applied to locomotives having outside cylinders, without increasing the entire
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Keywords: ., bookcentury1800, bookdecade189, booksubjectmechanicalengineering
