. Railway mechanical engineer . Elevation and Half Plan of the Tank 448 RAILWAY MECHAMCAL ENGINEER Vol. 92. No, 8 It has been found tliat a number of the lower tuijes locatedclose to the bottom of the sheet are practically of no value,as they rci^uire constant attention to keep them open. The boiler is fitted with the Sentinel low water alarm. Thevalue of this device lies not only in the elimination of burntor damaged crown sheets, but the water in tiie lioiler may beworked at a lower level, resulting in increased superheat tem-peratures. The efficiency of the superheater on large loco-motives
. Railway mechanical engineer . Elevation and Half Plan of the Tank 448 RAILWAY MECHAMCAL ENGINEER Vol. 92. No, 8 It has been found tliat a number of the lower tuijes locatedclose to the bottom of the sheet are practically of no value,as they rci^uire constant attention to keep them open. The boiler is fitted with the Sentinel low water alarm. Thevalue of this device lies not only in the elimination of burntor damaged crown sheets, but the water in tiie lioiler may beworked at a lower level, resulting in increased superheat tem-peratures. The efficiency of the superheater on large loco-motives, particularly on those with long boilers, is fre(|uently. The Back Head and Tube Sheet Layout perceptibly lowered, due to the tendency of some engineers tocarry the water at too high a level. Perfect confidence ma\be had when carrying the water at a low level on a locomo-tive equipped with this alarm, for the reason that sufficient time remains after the alarm has sounded to fill the boilerto the i)roper level without danger of damage. Two Sellers non-lift injectors, each having a capacity of7,500 gal. of water per hour, are located one on each sideof the engine under the cab with the steam control valves
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
