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

CHAPTER XIV.

Chapter 13120 wordsPublic domain

SHADING AND COLORING DRAWINGS.

Coloring the journals of shafts; simple shading; drawing cast-iron, wrought iron, steel and copper 277

Points to be observed in coloring and shading; colored drawings to be glued around their edges to the drawing board; to maintain an even shade of color; mixing colors 278

To graduate the depth of tint for a cylindrical surface 279

The size and use of brushes; light in shading; example for shading a Medart pulley 280

Brush shading 281

To show by the shading that the surfaces are highly polished; representation of an oil cup; representation of an iron planing machine 282

Example in shading of Blake's patent direct acting steam pump 284

Example of shading an independent condenser 288