. Railway mechanical engineer . %Bolt. 4 -■■- -•- II ^ e*4* fI - -: ■-: - ; . 1* IZxtgxfyl — | t *-4 Diam. % Thick Fig. 1—Jig for Drilling Holes in Firebox Wrapper Sheets a frame surrounding a firebox for the purpose of backingup air drills, reamers and the like, used in drilling the wrap-per sheets. It consists of a frame work of angle iron bent. Fig. 3—Portable Scaffold for Boiler Work which are adjustable on the bars and serve as back rests forthe air motor. Figs. 2 and 3 show a portable scaffold for use in work-ing on the boilers. As indicated in the sketch, it is made upof angle i

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. Railway mechanical engineer . %Bolt. 4 -■■- -•- II ^ e*4* fI - -: ■-: - ; . 1* IZxtgxfyl — | t *-4 Diam. % Thick Fig. 1—Jig for Drilling Holes in Firebox Wrapper Sheets a frame surrounding a firebox for the purpose of backingup air drills, reamers and the like, used in drilling the wrap-per sheets. It consists of a frame work of angle iron bent. Fig. 3—Portable Scaffold for Boiler Work which are adjustable on the bars and serve as back rests forthe air motor. Figs. 2 and 3 show a portable scaffold for use in work-ing on the boilers. As indicated in the sketch, it is made upof angle iron and supported on small wheels so that it canbe easily shifted from one part of the engine to the moving it about the shop it is handled by the overheadcrane The scaffold may be adjusted to any height, bolt

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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering