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 335
ctions in a andb (Fig. 695), their oblique projections will be situated in the lines a a and b J,but they are also at e and/; consequently the lines e a and fb are the obliqueprojections of the edges a e and bf. All the circles which, in the rectangular elevation (Fig. 695), have been em-ployed in… … MACHINE DESIGN AND MECHANICAL CONSTRUCTIONS. 321 oal, the major axes of all the ellipses in question are perpendicular to the lineA B, and equal to the diameters of the circles of which they are respectively theprojections; and the minor axes, representing the horizontal diameters, will allcoincide…
Mechanical drawing
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