. Railway mechanical engineer . s are the principal handicaps to thehauling problems on this mountain road. The coal con-sumption on the grade has iieen reduced by the use ofsujierheaters, some of which are in use and others being put Feed Pump for Dalzell Feedwater Heater veal an economv of per cent. The actual saving incoal is kilos per kilometer. As these engines are kilometers a years the total saving is about 62 ton;a vear, which at the prices paid for coal in these parts( soles per ton) is equivalent to $1, front ends have been standardize
. Railway mechanical engineer . s are the principal handicaps to thehauling problems on this mountain road. The coal con-sumption on the grade has iieen reduced by the use ofsujierheaters, some of which are in use and others being put Feed Pump for Dalzell Feedwater Heater veal an economv of per cent. The actual saving incoal is kilos per kilometer. As these engines are kilometers a years the total saving is about 62 ton;a vear, which at the prices paid for coal in these parts( soles per ton) is equivalent to $1, front ends have been standardized, electric headlightsare used on most of the passenger engines and orders foradditional sets are being put through from time to the corporations cars are manufactured complete at theArequipa shops and the only parts imported for the trucksare rolled steel wheels, chilled cast iron having laeen foundimpracticable owing to brake shoe friction and consequent ex-cessive heat which cracked them. Seventy-one 30-ton box cars. Wear on Axle End and Journal Box Caused by 90-Meter Curves on as fast as engines are shopped, as well as lay the use ofthe feedwater heaters described. Ten tons less dead weightin tenders is effected by cutting down the tender waterspace. Ninety-meter radius curves, with which the line isplentifullv supplied, have played havoc with axles, cuttingoff the collars at the ends, making short work of brassesand boring out the inside faces of journal lioxes where thehub of the wheel exerts its force in the end thrust. A cure for this difficulty was found in the chief mechan- June, 1920 RAILWAY MECHANICAL ENGINEER 367 ical engineers design of a special journal lx)x lid whichhas a lug cast on its inside face, on the surface of whichis cast a bed of anti-friction metal about % in. thick. Thelid is held down on the by two J-^-in. bolts and raisedletters on the lid admonish all concerned to always keepthe nuts screwed down. This device is being applied toall r
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
