Johnston, Philip Devereux, 1855- · New York, D. Williams Company · leaf 62
cribe the circle U R V R,cutting I J extended at R and R, which will be the fociof the hyperbola. The transverse and conjugate axes being given, tolay off an hyperbola: Draw I J (Fig. 12) equal to the transverse axis.Find the foci R R, as explained above. From R and Rlay off any number of points,… … 57 S8 A MANUAL OF MECHANICAL DRAWING. a!, V, c, etc. These will give points in the curvethrough which it may be drawn. Fig. 13.—To drazv an hyperbola zvhen its length B C,its breadth D E, and transverse axis A B are given: Construct the parallelogram D E F G and subdivideits sides G D and E F and…
Mechanical drawing
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