Practical draughtsmen's work, with numerous engravings and diagrams (1903)
Hasluck, Paul N. (Paul Nooncree), 1854-1931, ed · Philadelphia, D. McKay · leaf 90
rve whichcontinually approaches a straight line but never meets it, because,however many divisions may be taken, the distance from theasymptote is always half the last distance. In the next figure (Fig. 144), two asymptotes are drawn atright angles, and ^-in. squares marked off to facilitate the… … 1 • 4 \ y y \ ^ -^ ^ TS ■^g. 144.—Hyperbola. 3 4 5 e Fig. 143.—Hyperbola. and the two sides or legs may be produced infinitely, but afterabout one more division each way the curve becomes practicallya straight line. To set out a hyperbola to fill a given rectangle (Fig. 145),draw a horizontal line…
Mechanical drawing
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