Practical draughtsmen's work, with numerous engravings and diagrams (1903)
Hasluck, Paul N. (Paul Nooncree), 1854-1931, ed · Philadelphia, D. McKay · leaf 99
s,draw the required traces/A;, A Z:, meeting accurately in point kwhen properly drawn. The rationale of the process is that^^cand ejb are parts of a conical surface to which the plane istangent. It must be noted that the sum of the two givenangles must always be between 90^ and 180^; at these… … Fig. 156.—Brick inAngular Projection. Fig. 157.—Shaded Sketch ofa Brick in. Angular Projection. plan, elevation, and section are best suited, and are clearlyunderstood by most, if not all, persons requiring to use them.To persons unacquainted with draughtsmens work they conveyonly a vague idea of…
Mechanical drawing
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