Science and art drawing : complete geometrical course ; consisting of plane and solid geometry, orthographic and isometric projection, projection of shadow's the principles of map projection, graphic arithmetic and graphic statics (1895)
Spanton, J. Humphrey (John Humphrey) · London : Macmillan · leaf 196
diameter AE, eitherinside or outside of the directing circle, this point will describean ellipse, one-quarter of which is shown. This principle hasbeen used in drawing the ellipse in Fig. 286. So both theellipse and a straight line belong to the cycloidal series. Problem 199. To draw the involute… … called the involute of the circle or curve. The generating circleor curve is called its evolute. Let A be a given circle, Fig. 310. From B draw the tangentBC (Prob. 84) equal in length to half the circumference of thegiven circle. Divide this tangent into any number of equalparts, say six (Prob.…
Geometrical drawing
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