The technic of mechanical drafting a practical guide to neat, correct, and legible drawing (1904)
Reinhardt, Chas. William (Charles William), b. 1858 · New York, The Engineering News Pub. Co. · leaf 36
to say, light surfaces 32 may be left blank altogether, as the plan of the Funnel-ShapedSpillway on plate VI. indicates. The plan of the Reservoir ,, , „ MM.3Diam.A \Disfrib. Manhole-TDiami El.ofBottom- produced through gradually decreasing the pressure on the pen ateach stroke, as in making… … Embankment on plate VII. shows purely freehand lines eoparallel to top and foot of slope, to denote a rough surface.Such slopes may in some instances also be indicated by tapering,wavy strokes, drawn at right angles or radial to the top, and Fig. 66. closely packed, as indicated on Fig. 66. This…
Mechanical drawing
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