. Locomotive engineering : a practical journal of railway motive power and rolling stock . d slant. The slanting frontof American locomotives no doubt pene-trates the air better than the abrupt, ver-tical front of British engines. Point Ahas less pressure than point B, becausethe air wedge (which acts as a cushion)has its greatest depth at C. I believe atpoint D a spiral of air forms; this is whatsometimes causes an indicator diagram, orother light substance, to apparently hesi-tate before it shoots out to the side. Whoever saw a signal flag flown from thepilot line straight back? A flag will
. Locomotive engineering : a practical journal of railway motive power and rolling stock . d slant. The slanting frontof American locomotives no doubt pene-trates the air better than the abrupt, ver-tical front of British engines. Point Ahas less pressure than point B, becausethe air wedge (which acts as a cushion)has its greatest depth at C. I believe atpoint D a spiral of air forms; this is whatsometimes causes an indicator diagram, orother light substance, to apparently hesi-tate before it shoots out to the side. Whoever saw a signal flag flown from thepilot line straight back? A flag will lineout more to the side than that shown incurved lines on the sketch; this is becausethe lines of air shown are taken at centerof boiler, and would be farther forwardat deck of pilot. This wedge of air givento us by nature is exactly the correct form,whatever that form may be proved to be,and far exceeds any wind splitter thatman could devise. A stiff quarter or sidewind with the flange friction—thats therub, and you are four times as liable toget this kind, as you have two quarters. SCHAEFER S SPLIT AIR PUMP EXHAUST. The train acts like a piston in a cylindersucking air, and the vacuum or suctionproduced takes a good tight hold of thelast car—similar to the air piston of theair pump trying to suck in a good breathof fresh air when the receiving valves aregummed up with a lot of bad oil. Thewedge of air forming in front of the en-gine no doubt exists; there are many dif-ferent effects produced which go to provethis. I believe the apex of this wedge of and two sides to get it on. This side windseems to be entirely overlooked by theadvocates of wind splitters, as that pug-nosed device, no matter what form itmay be shaped up in, presents a greaterlateral surface for a side wind to act upon,and in just the worst place, as this helpsto push the engine trucks over all theharder against the opposite rail. Natureswedge of air is not there when a side windstrikes the train, and thi
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroa, bookyear1892
