Mechanical drawing for plumbers; a concise, comprehensive and practical treatise on the subject of mechanical drawing (1910)
Starbuck, R. M. (Robert Macy), 1844-1927 · New York, The Norman W. Henley publishing co. · leaf 54
M, N,O, P, the latter being of course shaded inthe same manner as No. 1. Exactly in the same way, No. 2, showsby its shading a tee-shaped figure, andNo. 4, by its different shading, shows ahole cut in the shape of a tee in the blockU, V, W, X. Also, in Fig. 59, No. 2 shows the endof a solid… … 51 52 MECHANICAL DRAWING FOR PLUMBERS light fall upon an object, and in order tomake the shading of drawings consistentand systematic, the rays of light mustalways be considered as coming from agiven direction, and after determiningupon the direction in which they are tocome, it should not be…
Plumbing · Mechanical drawing
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