. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . ber in it by building up a brick archa short distance in front of the flue whole arrangement is very clearlydrawn in our illustration. Speaking of ..ttaintd its prosier ciiJ and did improvecombustion, and proved very economicalin the burning of fuel. Further, the lifeof the tubes was greatly prolonged, andin no case during the life of the tubes wasthere nearly as much trouble given as inthe ordinary type of engine. The Wootten type of boiler has beenfor years standard on the Philade
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . ber in it by building up a brick archa short distance in front of the flue whole arrangement is very clearlydrawn in our illustration. Speaking of ..ttaintd its prosier ciiJ and did improvecombustion, and proved very economicalin the burning of fuel. Further, the lifeof the tubes was greatly prolonged, andin no case during the life of the tubes wasthere nearly as much trouble given as inthe ordinary type of engine. The Wootten type of boiler has beenfor years standard on the Philadelphia& Reading Railway, and very justifiablyso from the results obtained. Other placf, It is almost impossible to preventhaving a large number of seams on ac-count of the junction of the differentplates coming at the throat of the com-bustion chamber. Where the brick archis used it is necessary, about once a week,to draw the fire and allow the arch tocool; put a man behind the arch to shovelout the accumulation of cinders to pre-vent stopping up the flues. Knowing the desirable features of the. LONG FIREBOX WITH I!KI( K .\RCH AND COMBUSTION CHAMBER. the hollow arch and combustion chamberboiler Mr. Gaines says: Several years experience in the an-thracite district of Pennsylvania causedme to become quite familiar with thecombustion chamber, both the original, asapplied to the Wootten type of firebox,and the modified form as used to someextent without the brick wall. Whilethere were mechanical objections to thisdevice, there is no question but that it roads have used it somewhat in a moreor less modified form, and within the lastfew years several roads have been ap-plying it to engines using bituminous coalas a fuel. .■Ks far as I have been able toascertain, the results have been uniform-ly successful. The form of firebox with combustionchamber as heretofore constructed hasseveral mechanical defects which renderit more or less objectionable. In the first combustion cha
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