Document pBVDJw3dMjnQMMzOnEO9pw8J7

Easy Sketching System--12 Herb akk some more ways to put life Into dull engineering rcpom. Fig. 2 allows how to drive home the fact that you have been saving coal. Chart shows you burned 4.3 carloads (per month, week or day) in 1951, cut this to 3.7 cars In 1952, and 3.5 core in 1953. Note that the front cars portly hide (hose behind, also right-side cars partly hide those at the left. So, to save erasing, draw the right-hand front car first. Then work back in that row. Next, draw the 1952 row, again starting with the Ironl car and then working back. The same ides holds for the j] tanks in Fig. 3 and 4. Drawing tanks in the indicated order will save a lot of erasing of hidden parts. The tanks are drawn so the ends, which face you, are simple circles. Depending on the sue of your plant, each lank may represent an ac tual tank car of fuel oil, or any other convenient unit--say 1000 or 10,000 gal. You've often seen "pie" charts show ing how 100% is divided up among several uses. To draw such a pie chart in three dimensions: first (Fig. 6), <F* centers Cf and C9 for near end far of diak. Next (Fig. 7), complete d# near face as (or o conventionol pie chad Then draw the indicated edge lines- Fig. 8 shows how to drommlte oo* particular segment when you want B call attention to it. For the best orrange the chart ao this segment If a upper right-hand corner, as shown. , Fig. 9 drives home your accompli meni in cutting down a certain cost a 4-yeor period. More next month. PLANT OttRATtOH AND MAlNTtNANCf SECTION . Those twin scourges of industry~Lost Production and High Main* tennnee--are constantly drawing a bead on economical operation ... looking down this nation's arteries for the lines of least resistance to heat, pressure and corrosion. lliere it one way to spoil their aimi make sure chic jour pipe and tubing sections are joined with fittings of a kind that match them in chemical and physical properties, in strength and weight. W*S Double-Diamond FORGED STEEL Fittings in both screw-end and socket-weld types give you all these qualities . . . provide life* of-the-Iine joints for any kind of make-up. Literature is availoble .. . write for it, SOLD THROUGH LEADING DISTRIBUTORS atson-stillman fittings division H. K. PORTER COMPANY, INC. 133 ALDENE HD., ROSELLE, NEW JERSEY