A course in mechanical drawing for evening schools and self-instruction (1896)
Rouillion, Louis · Boston, New York, The Prang educational company · leaf 57
ionedsurface, the section-lining should not cross the figures.Do not crowd the figures. Where there is not roomfor both the figures and the arrow-heads between thelines to be dimensioned, the arrow-heads may beplaced outside the lines, as shown at the upper right-hand corner of the sheet. See that… … 5^ COURSE IN hlECHANiCAL DRAWING. SHEET XIX. Cone Pulley. When an end view of an object shows only circles,it should be omitted. Therefore, but one view of thecone pulley is necessary. The fact that an end vie\vwould show as a series of concentric circles may beexpressed by placing the abbreviation…
Mechanical drawing
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