An introduction to machine sketching and drawing for industrial and technical schools (1917)
Toronto : Copp, Clark · leaf 66
to scale. The sketcheswill not be to scale, but tlic dimensions on them must be exact. The teacher should ol)tain one or more face plates from a machine shop if possible. If thesecannot be obtained, a face plate from a wood-turning lathe or some other machine part of discshape will do. These… … (J CO Section on line CD. htre 64 MACHINE SKETCHING AND DRAWING Flange Coupling Sralf—Half size Draw to scale the side elevation of the ilaiige coupling, showing the upjier hall in secticjn.A drawing of a symmetrical object made in this way usually gives a better idea of the object thanif the whole…
Mechanical drawing
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