. American engineer and railroad journal . .] ENGINEERING JOURNAL. ^ 27 TESTING A COMPOUND LOCOMOTIVE IN EX-PRESS SERVICE. Some tests have recently been made with a compoundlocomotive built by the Rhode Island Locomotive Works,and designed for makinjj time on trains with fewstops. This locomotive—No. 2,600—is ot the two-cylin-der type, provitled with the intercepting valve used by theRhode Island Works. This valve is so arranged that whenthe throttle valve is opened at starting, steam from the The general results of these tests are given in Tables IIand III herewith. On the second one th
. American engineer and railroad journal . .] ENGINEERING JOURNAL. ^ 27 TESTING A COMPOUND LOCOMOTIVE IN EX-PRESS SERVICE. Some tests have recently been made with a compoundlocomotive built by the Rhode Island Locomotive Works,and designed for makinjj time on trains with fewstops. This locomotive—No. 2,600—is ot the two-cylin-der type, provitled with the intercepting valve used by theRhode Island Works. This valve is so arranged that whenthe throttle valve is opened at starting, steam from the The general results of these tests are given in Tables IIand III herewith. On the second one the water used wasmeasured; this was not done on the others, chielly on ac-count of the delay and difliculty caused when taking wateron the road. The coal used on this road was ordinarybituminous, about half lumps. On the Boston & Albany the service was very different,being over a road with many steeii grades and bad curves,some of the latter occurring on the worst grades. Thespeed on down grades is restricted by rule to 42 miles an. COMPOUND LOCOMOTIVE. RHODE ISLAND LOCOMOTIVE WORKS. boiler is admitted directly into the low-pressure cylinder,this admission ceasing when a predetermined pressure inthe receiver has been reached by from the high-pressure cylinder. The engine thus has the advantage ofworking with high-pressure steam in both cylinders instarting, and the valve is also arranged so that the engineercan change from compound to simple working at will. The results of these tests have been published by theRhode Island Works in a very complete form. We giveherewith a condensed summary of the results, space pre-venting the use of the complete tallies and other interestingdata. Two tests were made on the New York, Providence &Boston, and two on the Boston & Albany Railroad, thecompound No. 2,600 being run on each road with an en-gine as nearly as possible of the same capacity. Thedimensions are given in the table below : Table I. Comparative Dimensions of Locomot
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
