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 64
middle of the cylinder is often left blank,as it is difhcult to produce the effect of a light tintwhich is desirable at that place. A hollow cylinder or a concave surface is shadedsimilar to a cylinder, as shown in Fig. 146. The view of the sleeve nut shown in Fig. 147illustrates the manner in… … ever, by drawing the lines slanting and tapering tothe vertex of the cone, virhich is to l^e shaded.Wherever possible an ordinary pin may be put intothe board exactly in the vertex of the cone. Tlie
Mechanical drawing · Machine design
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