. American engineer . trol Valve is Between the Doorsand Close to the Back Head. deck is supported by bearings at either end and its casing isrigidly secured to the locomotive deck plate and to the casingof the elevating conveyor. It is partially open at the top, hav-ing a small trap door in the cab deck for inspection. Thesection of the casing extending under the mud ring, as willbe seen in the sectional illustration, fits the spiral with onlymoderate clearance for the full circumference, and the last full spiral of this section becomes a feeding mechanism for theelevating spiral which of cou
. American engineer . trol Valve is Between the Doorsand Close to the Back Head. deck is supported by bearings at either end and its casing isrigidly secured to the locomotive deck plate and to the casingof the elevating conveyor. It is partially open at the top, hav-ing a small trap door in the cab deck for inspection. Thesection of the casing extending under the mud ring, as willbe seen in the sectional illustration, fits the spiral with onlymoderate clearance for the full circumference, and the last full spiral of this section becomes a feeding mechanism for theelevating spiral which of course, must be kept full of coal atall times. The bearing at this end of the conveyor is carriedby a bracket from the top of the trough casing. This bracketis made as narrow as possible to give a minimum obstructionto the movement of the coal. The horizontal thrust of thedifferent sections of this conveyor is resisted by large shouldersat each of the bearings. The elevating spiral is placed in an exact vertical position. View of Tank Showing the End of the Conveyor. and it extends from the bottom of the horizontal conveyortrough to a point about 12 in. above the level of the casing is also securely supported from the frame of thelocomotive and is built with heavy rigid walls insuring itsalinement and strength. For protecting the upper end whichprojects above the grate level, from the effect of the heat, aconical shape grate has been arranged which includes the topring of casing and extends diagonally downward on the sidesand in the front, allowing a free circulation of air around thecasing. The bottom of this casing is made with a well thatholds the lubricant for bevel gears by which the spiral is shaft has a long bearing above the gear and is supportedon a ball thrust bearing. There is no bearing at the top ofthis conveyor. A small two-cylinder reciprocating steam engine is at pres-ent used for driving the conveyors, although experiments arebeing made to as
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1912
