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 227
tion is a line equal in length to the line itself and makes thesame angle with the ground line. (4) All points on any object at the same height above its basemust appear in the front elevation at the same distance below the groundline, and all points on an object at the same distance back of the… … Fig. 105. Typical Projections customary to call the vertical plane on which the front elevationis drawn V, and the horizontal plane on which the plan is drawn H. A= a. point A below H, and B in front of V J5 = a square prism resting against V, two of its faces parallelto H C = a circular disk in…
Mechanical drawing · Blueprinting
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