. American engineer and railroad journal . ownin fig. 1, made of sheet metal, with the edges over-lapping and forming a slot which opens tube extends nearly the full length of thesteam drum, and contains a worm. One end is at-tached to the steam pipe, while the other is leftopen. A perforated hood surrounds the upper portionof this tube, and the lower portion forms a trap ex-tending only a short distance in length, while theupper portion extends somewhat beyond the en-closed tube, both ends of the hood being closed, oneend allowing the tube to pass through it whereis attached to
. American engineer and railroad journal . ownin fig. 1, made of sheet metal, with the edges over-lapping and forming a slot which opens tube extends nearly the full length of thesteam drum, and contains a worm. One end is at-tached to the steam pipe, while the other is leftopen. A perforated hood surrounds the upper portionof this tube, and the lower portion forms a trap ex-tending only a short distance in length, while theupper portion extends somewhat beyond the en-closed tube, both ends of the hood being closed, oneend allowing the tube to pass through it whereis attached to the steam pipe. 5T3 In action the steam or vapor enters the perforations,which extend the whole length of the top side of the hood, andpasses back through the space between the hood and the tube,then enters the end of the slotted tube, where the steam is causedto take a rotary motion by the worm or auger-formed screw, thecentrifugal motion thereby created causing the water to bethrown to the outside, where the overlapping lips of the tube. Fig. SECTION. catch any entrained water and deliver it to the trap below,where it overflows. It will be seen that this separator reallyconsists of several separators contained in one, as each convo-lution of the worm, in combination with the overlapping edgesof the tube, forms a separator of itself. A special feature ofthis separator, wherein it differs from all others, is that, after 428 THE AMERICAN ENGINEER [September, 1894. ibe BeparatioD has once taken place, the water of separationin come in contact with the currents of steam. one advantage claimed for this boiler is the independenceof the two halves, so that, should one- half Ik- injured by a shot,the other, by continuing to work, ;i > c-> the vessel an oppor-tuniiy to escape. The center of gravity is very low, which isa feature which will be appreciated in marine boilers. In some ti sts made with these boilers on an 8-hour run,where there was sq. ft. of heatin
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
