. American engineer and railroad journal . through C around the open-inn at L into the low-pressure cylinder. The exhaust from thehigh pressure cylinder passes through the receiver around thedash pot piston of the main valve through the chamber /,passes the valve // and out into the main exhaust by way ofthe emergency exhaust, as marked. The action of the engineis very clearly shown by the two sets of indicator cards whichwe publish. One of them is taken at thespeed of miles perhour, aud the other at miles per hour. In the tirst thelever was down in the corner, the steam pressure 170
. American engineer and railroad journal . through C around the open-inn at L into the low-pressure cylinder. The exhaust from thehigh pressure cylinder passes through the receiver around thedash pot piston of the main valve through the chamber /,passes the valve // and out into the main exhaust by way ofthe emergency exhaust, as marked. The action of the engineis very clearly shown by the two sets of indicator cards whichwe publish. One of them is taken at thespeed of miles perhour, aud the other at miles per hour. In the tirst thelever was down in the corner, the steam pressure 170 lbs., theengine making 50 revolutions per minute. The mean effectivepressure in the high-pressure cylinder is found to be 114 lbs. ;in the low-pressure C3diuder it is 48 lbs. The developedwas 190 in the high-pressure and 2015 in the low-pressure cylin-der, makiug a total of 401, thus showing that the equalizationof work done by the two cylinders is practically perfect, theactual variation being less than 5 per cent. CARDS N?l. HOUR. SOME ENGINES OF THE GERMANUNION. RAILWAY Tiik last supplement of the Organ, which appeared in 1893,contained a description of a numoer of types of locomotives,passenger and freight cars which have been put Into serviceduring recent years on the different lines of the German Kail-way Union. We select from this work, which contains alarge number of interesting reports, a description of threeexpress engines, two of which differ from types which are ingeneral use. Express Locomotive for tfte Bavarian State Railways.—Theselocomotives, tig 1, were built by Mafci, of Munich, in 1S*I 1,for four wheels coupled at the back with a bogie truck infront. The cylinders and steam-chests are outside (lie frames,and the distance from center to center is 0 ft. 8 in. The boileris of iron and the lire box of copper. The shell is formed ofthree sheets with an average diameter of 4 ft. 7 in. and athickness of .0 in. The transverse and longitudinal seams aredouble
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
