Rogers' drawing and design; an educational treatise relating to linear drawing; machine design; working drawings; transmission methods; steam, electrical and metal working machines and parts; lathes; boiler and parts; instruments and their use; tables, etc (1913)
Hawkins, N. (Nehemiah), 1833- · New York, T. Audel · leaf 57
DESIGN. 67 Figs. ii6 and 117 represent a hollow square- b prism ; its top view shows the shade lines a d andd c, that is, the right and bottom sides of the view c upon which the rays of light do not fall ; the lines b a d f ? u Fig. U4. a A f Fui. 116. 9 i : m 0 ^ m r 8 M P n Fiu. iir. 1 e f and f… … Fig. 118. Fig. 119. Another example of shade lines is given in Figs.ii8 and 119; in this case the top view shows ahexagonal hole, offering a good opportunity to con-sider the shading of objects with inclined planes.It will be plainly seen that the lines c d and b cmust be shade lines and the lines…
Mechanical drawing · Machine design
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