Laying out for boiler makers and sheet metal workers; a practical treatise on the layout of boilers, stacks, tanks, pipes, elbows, and miscellaneous sheet metal work . up till they cut the base of the hood or theshell of the converter. Fig. i ; at these points draw lines atright angles to the center line / B indefinitely to the rightand left and number them according to the point drawnfrom in Fig. 3.—I, 2, 3, etc. The distances from / to the dif-ferent lines on the center line. Fig. 4, will be the altitude ofthe triangles to be constructed. Then transfer the solid baselines No. i, Fig. 3, to t
Laying out for boiler makers and sheet metal workers; a practical treatise on the layout of boilers, stacks, tanks, pipes, elbows, and miscellaneous sheet metal work . up till they cut the base of the hood or theshell of the converter. Fig. i ; at these points draw lines atright angles to the center line / B indefinitely to the rightand left and number them according to the point drawnfrom in Fig. 3.—I, 2, 3, etc. The distances from / to the dif-ferent lines on the center line. Fig. 4, will be the altitude ofthe triangles to be constructed. Then transfer the solid baselines No. i, Fig. 3, to the same lines on the elevation. Fig. i,using the junction of the base lines and the center line as theright angle corner cf the triangles. A line drawn from thispoint to J will be the hypotenuse of that triangle; then trans-fer the solid lines No. 2, of Fig. 3, to the same number on , also on this same line, transfer the length of the dotted linea. A line drawn in from these points to / will be thehypotenuse of these triangles and the true length on the linesfor the pattern. All the rest of the lines in the lower part of i8o LAYING OUT FOR BOILER MAKERS. FIG, 6 EIG. 4
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Keywords: ., bookcentury1900, bookdecade1900, bookidl, booksubjectsteamboilers
