Mechanical drawing self-taught: comprising instructions in the selection and preparation of drawing instruments. Elementary instruction in practical mechanical drawing. Together with examples in simple geometry and elementary mechanism, including screw threads, gear wheels, mechanical motions, engines and boilers (1889)
of % 1 T i! 1 ■ :.1 ■ 1!ijij liii U 1 r-^^^ Fig. 113. shading being governed by the width apart of thelines. 90 MECHAXICAL DRAWING SELF-TAUGHT. Line shading Is often used to denote that the piecerepresented is to be of wood, the shade Hnes being In … Fig. 114. some cases regular In combination with regular ones,or entirely irregular, as In Figure 114. ,A. CHAPTER V MARKING DIMENSIONS. The dimensions of mechanical drawings are bestmarked in red ink so that they will show plainly, andthat the lines denoting the points at which the dimen-sion is…
Mechanical drawing
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