Hasluck, Paul N. (Paul Nooncree), 1854-1931 · London ; New York : Cassell and Co. · leaf 97
he required traces fk, hk, meeting accurately in point & when properly drawn. The rationale of the process is that gic and ejb are parts of a conical surface to which the plane is tangent. It must be noted that the sum of the two given angles must always be between 90° and 180°; at these extremi-… … Fig. 156.—Brick in Fig. 157.—Shaded Sketch of Angular Projection. a Brick in Angular Projection. plan, elevation, and section are best suited, and are clearly understood by most, if not all, persons requiring to use them. To persons unacquainted with draughtsmen’s work they convey only a vague idea…
Mechanical drawing
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
