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 . ich should equal one-fourth of the circumference of theirrespective diameters. Draw the curved lines from E to /,and from G to /; this gives the pattern for the sides. Thecenter of radius for these curves is found on the axial obtain the pattern for the back and throat pieces, dividethe center line through the side pattern into any number ofequal parts, and from the center of radius of throat, draw thecross-sectional li
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 . ich should equal one-fourth of the circumference of theirrespective diameters. Draw the curved lines from E to /,and from G to /; this gives the pattern for the sides. Thecenter of radius for these curves is found on the axial obtain the pattern for the back and throat pieces, dividethe center line through the side pattern into any number ofequal parts, and from the center of radius of throat, draw thecross-sectional lines through the side pattern, which will giveone-fourth of the circumference of the cowl at these these lines until they cut the curve of the back, andthe curved working line at the throat numbered i, 2, 3, 4 and5. Transfer these divisions as they occur to the straight linesSU and TV, Figs. 5 and 6. Draw lines through these pointsof divisions at right-angles to the lines SU and TV, and makethem correspond to the length of the cross-sectional lines inthe side pattern. With a light w-ooden batten sprung along MISCELLANEOUS PROBLEMS IN LAYING OUT 175. Z HO o g So > o O ob
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Keywords: ., bookcentury1900, bookdecade1900, bookidl, booksubjectsteamboilers
