Spanton, J. Humphrey (John Humphrey) · London, Macmillan and Co., Limited; New York, The Macmillan Company · leaf 190
level of the division b\ i.e.GH, draw an arc till it meetsa projector from b in the points bb. Find the other points in the same manner, and draw a fair curve through them. To construct the sectional area. Draw the hne DE in any convenient position parallel to DE, and draw lines at right angles to… … Fig. 307. 226. To project a section through a right vertical cone; the cuttingplane to be perpendicular to the H.P, and inclined at an angleof 50° to the V.P. Fig. 308. This section is an hyperbola. Let DE be the plan of the section. From C draw the line(Zd perpendicular to DE. With C as centre,…
Geometrical drawing · Design · Drawing
Internet Archive · Wellesley College Library · Public Domain Mark 1.0. Free to use for anything.
