Industrial drawing and geometry; an introduction to various branches of technical drawing (1911)
Spooner, Henry John, 1856- · London, New York [etc.] Longmans, Green, and co. · leaf 173
ay be drawn in red ink, and centre lines in Indian ink; the latter are formed by alternatingdashes (of I and | lengths) not too close together and evenly spaced. Only short dashes are used on short centre lines. This may also be made by rubbing down a cake of the colour required, but most… … Pig. C21. Tig. 523. PRINTING, SHADING, TRACING, ETC. 155 machine drawings. However, a similar effect can be easily produced by a few shading lines/ which are or should be drawn in accordance with therules followed in shading proper. To commence with a simple example that very often in many forms…
Mechanical drawing · Geometrical drawing
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