. American engineer and railroad journal . urplus length to find jus- October, L909. AMERICAN ENGINEER AND RAILROAD Jul RNAL. 411 tification for the same beyond that called for by the locomo-tive design ? Having regard for recent discussion upon the economical lengthof the locomotive boiler tube, one could commence by cutting offthe useless last 5 feet of the tubes in the boiler under notice, so asto increase the space available for sections of naturally diminish-ing temperatures suited to a variety of purposes. Allowing, then, boiler tubes of id feet in length, we might al-low— For the combus
. American engineer and railroad journal . urplus length to find jus- October, L909. AMERICAN ENGINEER AND RAILROAD Jul RNAL. 411 tification for the same beyond that called for by the locomo-tive design ? Having regard for recent discussion upon the economical lengthof the locomotive boiler tube, one could commence by cutting offthe useless last 5 feet of the tubes in the boiler under notice, so asto increase the space available for sections of naturally diminish-ing temperatures suited to a variety of purposes. Allowing, then, boiler tubes of id feet in length, we might al-low— For the combustion chamber 4 ft. 0 in. For the feed-wstcr heater ^ t tt. 6 In. For a sand drier :. ft. 3 in. For a food-warming compartment 2 ft. 0 in. For a clothes-drying compartment 2 ft. 0 in. There being little heat left for the superheater, this space couldbe utilized for other purposes; in fact, one may expect with stillmore immense locomotives of the Mallet system, that by the timethe gases laboriously reach the smoke-box, the temperature may. .MACHINE FOR BORING CAR JOURNAL BEARINGS be a minus quantity, thus enabling the last section to serve as arefrigerator for preserving perishable articles of food for use inthe dining car on a long journey. Antiplea. THE COST OF HIGH SPEED. In commenting on the recent record run of the Lusitania whenan average of knots, or miles, were made per hour,Power has this to say: To run a boat the size of the Lusitania at eighteen knots, miles, an hour, woulct require approximately 350 tons ofcoal a day. The time for a voyage would be six days and tenhours instead of four and one-half days, and the coal consump-tion tons as compared to 4,725, and probably a much largerquantity when the coveted four days to complete the trip is amatter of history. The excess in speed already attained overthe moderate figure of eighteen knots per hour costs nearly 2,500tons of coal on each trip, or in other words, fuel enough to last five fumijie
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
