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 230
Fig. 14. Drawing a Line Parallel toGiven Line Fig. 15. Drawing a Line Perpendicularto a Given Line It is possible to draw lines forming angles of 15 and 75 degrees byplacing the triangles as shown in Fig. 16. t— o o \ / <^o 0 o o O0 o o o Fig. 16. Drawing Angle of 15° and 75c By the use of the…
Mechanical drawing · Blueprinting
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