Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 402
case where the upper tangentd inclines more than the bottom one c. The method in all cases isto continue the line of the upper tangent d, Fig. 112, to the groundline as shown at n; from n, draw a line to a, which will be the horizon-tal trace of the plane. Now, from o, draw a line parallel to a n,… … Fig. 117. Upper Tangent Inclined, Lower Tangent Level,Over Acute-Angle Plan. 327
Architecture · Building
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