. Railway and Locomotive Engineering. felectricity; but it is certain that beforemany years it will, as a whole, be agreater user of electricity than any otherindustrial class. At the beginning of electrical develop-ment the power plant was crude, consist-ing of a dynamo connected by a belt tosome kind of an engine. This apparatuswas followed by larger dynamos, moreefficient steam engines until the modernsteam turbine and immense generatorswere reached. It was the practice foreach large user of power to build hisown power plant. The cost of operatingseveral moderate size power houses sep-arate
. Railway and Locomotive Engineering. felectricity; but it is certain that beforemany years it will, as a whole, be agreater user of electricity than any otherindustrial class. At the beginning of electrical develop-ment the power plant was crude, consist-ing of a dynamo connected by a belt tosome kind of an engine. This apparatuswas followed by larger dynamos, moreefficient steam engines until the modernsteam turbine and immense generatorswere reached. It was the practice foreach large user of power to build hisown power plant. The cost of operatingseveral moderate size power houses sep-arately is far greater than the cost if alli>f these separate powers were combinedinto one, and large central jiower housesare in existence today and more arebudding. How does this affect the rail-roads? It gives the railroads an oppor-tunity to obtain power at such low costsand reliability from the modern central-ized power plant that the field for theadvantageous use of the electric locomo-tive will I.,- , The. i;.\s-i-:cTRic c.\k o\ the fris( the engine and same always rotates in thesame direction. This method of reversalis of extreme advantage in the case ofemergency. The car can be broughtquickly to a stop if the brakes fail, forthe motors can be reversed, and a lowvoltage applied to them which will slowdown the car gradually without damageto any of the apparatus. The advantages of the gas-electric carover the straight gasolene car should beclearly seen. The engine in the formeralways rotates in the one direction, andthe simple and substantial control bymeans of electricity and electric motorsreplaces gearing and clutches. Years ofexperience have demonstrated that thereis no piece of apparatus less liable toderangement than the railway motor builtfor heavy high speed traction work. Electricity on Railroads. Mr. E. M. Herr, President of theWestinghouse Electric and Manufactur-ing in an address at the RailwayGuild Dinner. May 14, 1912, discuss
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