. Locomotive text for engineers and firemen; a complete treatise on the engine, electric head-light and standard code of train rules . The boiler check is usually placed near the frontend of the boiler to introduce the water at as great adistance as possible from the fire-box. The advantagethus gained is that it permits the water to becomeheated before coming in contact with the fire-box, andalso tends to bring about a better circulation of theboiler. DRAFT APPLIANCES. The draft appliances of a locomotive (Fig. 11) in-clude diaphragm (1),petticoat-pipe (2), sleeve (3), net-ting (4), exhaust no
. Locomotive text for engineers and firemen; a complete treatise on the engine, electric head-light and standard code of train rules . The boiler check is usually placed near the frontend of the boiler to introduce the water at as great adistance as possible from the fire-box. The advantagethus gained is that it permits the water to becomeheated before coming in contact with the fire-box, andalso tends to bring about a better circulation of theboiler. DRAFT APPLIANCES. The draft appliances of a locomotive (Fig. 11) in-clude diaphragm (1),petticoat-pipe (2), sleeve (3), net-ting (4), exhaust nozzle (5) and exhaust (6). The diaphragm is a sheet of steel fastened at anangle just above the top of the boiler tubes, whichdeflects the smoke and cinders towards the bottom ofthe smoke-box. Attached to the stationary portion ofthe diaphragm is another section, hinged in modern 3Q DRAFT FIG. 11. locomotives, which when raised or lowered governsthe draft through the tubes. Raising the diaphragmdecreases the draft through the lower and increases thedraft through the upper flues. The petticoat-pipe (2), which is cylindrical in shape,is set directly over the exhaust nozzle (5), and hasa second tube of larger diameter, called a sleeve(3), above, so as to telescope with it. They are indirect line with the stack and act as a guide for thesteam from the exhaust nozzle passing out of the stack. Raising the sleeve and lowering the petticoat-pipedecreases the draft on the fire; raising the petticoat-pipe and lowering the sleeve increases the draft. (). If a fire burns more intensely at the front endof the fire-box it indicates that the draft is greaterthrough the lower flues; if the fire burns stronger atthe fire-box door it shows that the draft is greaterthrough the upper flues. The netting (4, Fig. 11) is a steel screen fastened tothe smoke-box to prevent large cinders
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Keywords: ., bookauthornationalcorrespondenc, bookcentury1900, bookdecade1900
