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 236
ng is necessary. Wipe thedry after using to prevent crumbling. It is well to grind theink in small quantities as it does not dissolve readily a second time,however, if covered it will keep for two or three days. 80 MECHANICAL DRAWING 15 Scales. The scales used for obtaining measurements on… … Fig. 30. Triangular Scale surfaces for different graduations, and the scales are arranged so thatthe drawings may be made in any proportion to the actual size. Formechanical work, the common divisions are multiples of two; thusdrawings are made full size, J size, J, J, TV, ^V> -bt> e^c- ^ a…
Mechanical drawing · Blueprinting
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