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 692
FIG. 1671. h … FIG. 1670. FIG. 1672. generally pointed, but sometimes circular; in the earlier, the angles in whichthe shafts are placed are rectangular; in the latter, the shaft is often mouldedon a chamfer plane—that is, a plane inclined to the face of the wall, generallyat an angle of 45° ; often the chamfer…
Mechanical drawing
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