Blueprint reading; a practical manual of instruction in blueprint reading through the analysis of typical plates with reference to mechanical drawing conventions and methods, the laws of projection, etc (1919)
Fairfield, Howard Parker, 1858-, Kenison, Ervin, Waite, Edward B. (Edward Broughton), 1873-, American Technical Society · Chicago, American technical society · leaf 232
&- … Fig. 117. Projections of a Line Inclinedto Plane Fig. 118. Projections of Lines Paral-lel to Ground Line and vertical planes will not show its true length in either projec-tion, as represented in Fig. 119. In a case like the one last men-tioned, the true length of the line is found by revolving the…
Mechanical drawing · Blueprinting
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