Appletons' cyclopædia of technical drawing : embracing the principles of construction as applied to practical design ... (1896)
Worthen, W. E. (William Ezra), 1819-1897 · New York : D. Appleton · leaf 173
/ V\^\\ ;< ^V \ «K—-^ A- ! J \ I L f\—/— #—- \ /)^- kx / … FIG. 32a. and A E, as well as to those of the helix F G H and the edge H I. The shadowof the two edges J K and K L, thrown upon an inclined helical surface, ofwhich A L is the generatrix, follows the rules given in Fig. 323.
Mechanical drawing
Internet Archive · California Digital Library · Public Domain Mark 1.0. Free to use for anything.
