. American engineer . use. That pressure will suffice to de-velop all the benefit thaf^an be derived from the use of thesteam jets, and the noise incidental to their use will be muchreduced and rendered less objectionable. It is therefore ad-visable to apply a steam reducing valve in the line between thethrottle and the jets. The steam jets drive the currents of coldair closely over the surface of the fire in such a manner as tocause an intermingling with the escaping gases and thus aid intheir combustion. A good job of smoke prevention can be ac-complished with the blower and steam jets in co
. American engineer . use. That pressure will suffice to de-velop all the benefit thaf^an be derived from the use of thesteam jets, and the noise incidental to their use will be muchreduced and rendered less objectionable. It is therefore ad-visable to apply a steam reducing valve in the line between thethrottle and the jets. The steam jets drive the currents of coldair closely over the surface of the fire in such a manner as tocause an intermingling with the escaping gases and thus aid intheir combustion. A good job of smoke prevention can be ac-complished with the blower and steam jets in combination, pro-vided the engine crew is properly instructed and that conscien-tious and intelligent use is made of them. The next essential in securing the best results is a suitablydesigned brick arch, the installation of which on power doingwork of an intermittent nature, such as on switch engines, wherelong continued service is not necessary, should be about asshown in Fig. 2. The spaces marked X are the only open-. m^ «^sa^ ^^^^^.ss■.j •■•■•■■■■•^ ^^■^^ ^^■■^■^■^ sss^s iaa:^ X ^k^ .•^ K K X ^ vrwWi* Bricks omtffecf in spaces markec/ X Fig. 2—Recommended Arrangement of Bricl< Arch in SwitchEngines. mark at all times, even with the use of the most highly volatilefuels. The flues should be kept tight and clean at all times, and theopenings in the grates should be kept open. The grate operatingrigging should be kept in good condition so as to be easilyoperated, and so that the grates can be shaken often enough toadmit of the proper admission of air through the fire at all times. A good blower is necessary and an operating valve on eachside of the cab within convenient reach of both engineer andfireman is most desirable, in order that either may start theblower quickly in case of necessity. The use of the steam jets in the firebox in connection with theblower, as an aid in the prevention of smoke, is essential, as.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroa, bookyear1912
