. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . e, with three inverted leafsprings which are placed below the upperframe rail. Limited clearance space un-der the firebox did not permit placingthe springs over the boxes of the tworear pairs of wheels. The boiler is of the straight top type,with horizontal roof sheet and slopingthroat and back head. The throat has adepth of 19 13/16 in., measured from theunder side of the barrel to the bottom ofthe mud ring. The firebox is supported,at the front and back, on vertical front end of
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . e, with three inverted leafsprings which are placed below the upperframe rail. Limited clearance space un-der the firebox did not permit placingthe springs over the boxes of the tworear pairs of wheels. The boiler is of the straight top type,with horizontal roof sheet and slopingthroat and back head. The throat has adepth of 19 13/16 in., measured from theunder side of the barrel to the bottom ofthe mud ring. The firebox is supported,at the front and back, on vertical front end of the crown is supportedon three rows of expansion stays, andabout 550 flexible stay-bolts are applied inthe breaking zones in the sides. June, 1921 RAILWAY AND LOCOMOTIVE ENGINEERING 165 throat and back. The safety valvesare placed just forward of the tire-box and, as the clearance is hmitcd, theyare tapped directly into the boiler shell in- ash pan has two hoppers with swing bot-toms, both of which are controlled by onehandle. Flushing pipes are applied forwashing ashes from the slopes of the BACK BOiLER HEAD AND CAC EQUIPMENT OF CONSOLIDATION LOCOMOTnEFOR WESTERN MARYLAND RAILWAY Stead of being mounted on an auxiliarydome. The firebox equipment includes a brickarch, power operated fire-door and grateshakers and Standard stoker. The drop-plates are at the back of the grate. The The cab is unusually roomy and com-fortable with all fittings placed within con-venient reach of the crew. The injectorsand steam turret are placed outside thecab and have extension handles identifiedby small aluminum plates with raised let- ters. The equipment includes a breatherpipe for providing fresh air while passingthrough tunnels. This arrangement con-sists of a J/2-inch pipe placed across theboiler back head, and having five J4-nchglobe valves equally spaced, each fittedwith 3 feet of J/2-inch hose. The air sup-ply is drawn from the brake system. .An interesting detail is the arrangementof
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