. Ingénierie ferroviaire et de locomotive : un journal pratique de la force motrice ferroviaire et du matériel roulant . roues.les boulons Tate flexibles restent la gorge et l'arrière de la boîte de feu, et sont utilisés dans les zones de delireakage sur les côtés: Et les quatre rangées de Baldwin expansion reste soutenir l'extrémité avant de la couronne. Le mudring est soutenu sur des plaques verticales à la thefniin et à l'arrière, et à un intermeJiat- ing dans la coquille mesure 20 in. long-tudinally par 28 in. Transverely. Le papillon est placé immédiatement au-dessus de l'ouverture, et le tuyau d'accélérateur est fixé à un support qui isl:o;est fixé au

• Contributeur: Reading Room 2020 / Alamy Banque D'Images
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. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . wheels.Flexible Tate bolts stay the throat andback of the firebox, and are used in thelireakage zones in the sides: and fourrows of Baldwin expansion stays supportthe forward end of the crown. The mudring is supported on vertical plates at thefniin and back, and at one intermeJiat- ing in the shell measures 20 ins. longi-tudinally by 28 ins. transversely. Thethrottle valve is seated immediately overtliis opening, and the throttle pipe hasc;:st on it a supporting bracket which isl:o;ted to the boiler shell. The valve islifted by a transverse rotating rod, whichpasses through a stuffing-box in the sideof the boiler below the dome, and has anoutside connection with the throttle lever.The latter is placed in a vertical position, and is designed to give maximum leverageand sowest valve movement when thevalve is starting to lift. The superheater header is of cast iron, in one piece, and is designed for a 65-ele-ment superheater having 2, 059 sq. ft. ofsiTtacc. The superheated steam pipes lead-. TRiPi.r.x i:.V(;i.E 2-8.s-s-4 for ttif. vircim.w i?h.v.-. R. K. Jsck?on, Supt. Motive Power, being ^ in. on the front and back driversof each group, and ^4 in. on the main andintermediate pairs. The locomotive isturned on Vs. on which the curvature is18 degs. The boiler is of the wagon top type, with an outside diameter of 110 ins. atthe third ring. Both the main and auxil-iary domes are mountcfl on this ring, thelatter being placed over a 15-in. opening inthe shell. The longitudinal seams are allplaced on the top center line. That on thedome ring is welded throughout its entirelength, while the seams on the first andsecond rings are welded at the ends. Thecircumferential seam uniting the secondand third rings, and the scams unitingthe third ring with the throat and out- point. Here the load is transferred to theplate through a transverse cast-steel brace, which is strongly ribbed

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