Elementary mechanical drawing, for school and shop (1886)
Aborn, Frank, 1845- [from old catalog] · Cincinnati, New York, Van Antwerp, Bragg & co · leaf 88
g anddiminishing in diameter ac-cording to a fixed law, everypoint on the surface of ahemisphere may be regardedas located on a circle parallelto its base. Locate the pointp § in. from the center ofthe plan, and through it de-scribe a circle, ef parallelto ab. This circle, ef is theplan of a circle… … Fig. 107. CONSTRUCTIVE DRAWING. 87 surface of the hemisphere which contains the givenpoint. Draw the leader, ppf, to intersect e?f, and pis the required elevation of the given point, whichis now completely described. Prob. 2.—Draw the plan and elevation of a cone;base, 46 ft. in diameter; and…
Mechanical drawing
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