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 162
of the pen must be kept tangent to the curve.For certain kinds of work, irregular curves of plastic metal are some-times used to fit exceptionally erratic curves. Beam Compasses. The ordinary compasses are suitable fordrawing circles up to 8 or 10 inches diameter. For larger circlesbeam compasses… … Fig. 33. Method of Using Irregular Curve thumb nut underneath one of the channel pieces makes accurateadjustment possible. LETTERING No mechanical drawing is finished unless all headings, titles,and dimensions are lettered in plain, neat type. Many drawingsare accurate, well-planned, and finely…
Mechanical drawing · Blueprinting
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