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 338
of which would necessitate finding a numberof points; for this reason an approximate construction by arcs ofcircles is often made. In the method, Fig. 156, four centers areused. Considering the upper face of the cube, lines are drawnfrom the obtuse angles / and e to the centers of the opposite…
Mechanical drawing · Blueprinting
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