. Railway mechanical engineer . Fig. 1 — New Firebox Ready to Be Applied to the Locomotive Boiler Fig. 2—Door Sheet of New Firebox Partially Welded In the mud-ring. By following this practice the cost of manu-facture and the cost of firebox repairs is materially method of applying new fireboxes to wide firebox en-gines i> also greatly simplified. The new firebox is madein three pieces, namely, the side and crown sheet (in onepiece), the door sheet and the tube sheet. Four or five new firebox secured so that the boiler can be replaced on theframes thus giving the other workmen an
. Railway mechanical engineer . Fig. 1 — New Firebox Ready to Be Applied to the Locomotive Boiler Fig. 2—Door Sheet of New Firebox Partially Welded In the mud-ring. By following this practice the cost of manu-facture and the cost of firebox repairs is materially method of applying new fireboxes to wide firebox en-gines i> also greatly simplified. The new firebox is madein three pieces, namely, the side and crown sheet (in onepiece), the door sheet and the tube sheet. Four or five new firebox secured so that the boiler can be replaced on theframes thus giving the other workmen an opportunity fordoing their work. The mud ring is riveted in place, thestaybolts applied, the door sheet welded in, and the crownbolts applied. Fig. 2 shows the door sheet partially weldedin. On the narrow firebox engines the fireboxes an applied. Fig. 3—Firebox to Be Welded by Oxy-Acetylene fireboxes are made at one time for certain classes of enginesand held in stock to be used as needed. This work is alldone with templates and the fireboxes are fitted to a standardmud-ring as shown in Fig. I. The tube sheet is welded in(the weld is painted white in the illustration to bring it out Fig. 4—Side Sheet Patch Fig. 5—Firebox Corner Weld in five pieces and without removing the back head or themud ring, and leaving the boiler in position on the pieces are the two side sheets, the tube sheet, the crownsheet and the door sheet. It will readily be seen that by thispractice a large amount of time and labor are saved with an 649 650 RAILWAY MECHANICAL ENGINEER Vol. 90, No. 12 accompanying decrease in cost. This work has been donein this way for some time and has given very satisfactoryresults. In applying patches to the fireboxes the oxy-acetylene weld-ing process has also been found most satisfactory. Fig. 3shows the
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
