. American engineer and railroad journal . convenient labor saving sand-house arrangement at Knoxville, Tenn., which has been in useseveral years. From Mr. J. B. Michael, master mechanic atthat point, we have received drawings showing the house andthe sand elevating appliances. Sand is delivered upon the floor of the sand house and isshoveled upon the heaters. Prom these the dry sand is thrownupon a screen, through which it falls into a hopper, the topof which is level with the floor, and this hopper dischargesinto the top of an underground cylinder, which is an old mainreservoir from a locomo
. American engineer and railroad journal . convenient labor saving sand-house arrangement at Knoxville, Tenn., which has been in useseveral years. From Mr. J. B. Michael, master mechanic atthat point, we have received drawings showing the house andthe sand elevating appliances. Sand is delivered upon the floor of the sand house and isshoveled upon the heaters. Prom these the dry sand is thrownupon a screen, through which it falls into a hopper, the topof which is level with the floor, and this hopper dischargesinto the top of an underground cylinder, which is an old mainreservoir from a locomotive. The dry sand flows into thisreservoir through the Ailing valve. When the cylinder is filled,air is admitted through the %-in. pipe, which opens under thefunnel, and an air jet blows the sand to the top of the storagetower, from which it is discharged into the sand boxes of thelocomotives through the spouts. The valve which admits theair pressure to the jet also admits the same pressure to the ■~.%airP>pe forc/os/ng F////nqKi/re. fT^. / hi ^ hi W rV 8, g Cap Bolts --—--/?-- SAND ELEVATOR. cylinder, which closes the filling valve, thus cutting off theescape of sand at the top of the cylinder. The sand house at Knoxville is 30 ft. 2 ins. by 21 ft. 2 ins.,and ft. 6 ins. high at the eaves. It is built of brick, withwalls 17 ins. thick, and encloses four sand-drying stoves anda dry sand bin 8 ft. 7% ins. square, which opens into thecylinder below. storage bins for dry sand aresupported upon 8-in. by 8-in. posts, with a roof over the , roof of the sand house is of slate. The accompanying en-gravings show the arrangement of the sand house and the man- ner of its operation. The sand elevator and method of auto-matically closing the inlet valve at the top of the sand reser-voir is similar to that used at the Collinwood roundhouse ofthe Lake Shore & Michigan Southern Railway. (See AmericanEnmneer, January, 1902, page 9.) Mr. Michael says that thesand
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
