Machine drawing, a practical guide to the standard methods of graphical representation of machines, including complete detail drawings of a duplex pump and of a direct-current generator (1920)
Griffin, Charles Lewis, 1867- [from old catalog], Adams, Charles Clyde, 1882- [from old catalog] joint author · Chicago, American technical society · leaf 15
front elevation, the same princi-ples of projection being used asin the former case. The above procedure isequivalent to tracing on each sideof the box the outline of the ob-ject as observed by the eye, whendirectly in front of each side ofthe object; after this is done theunfolding of the box… … Fig. 3. Rectangular Block Within a GlassBox, the Surfaces Projected to the Top, Front,and Right-Hand Side
Machinery
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.