The mechanical engineer's pocket-book. A reference-book of rules, tables, data, and formulæ, for the use of engineers, mechanics, and students (1910)
Kent, William, 1851-1918 · New York, J. Wiley & sons · leaf 99
intersectingthe arc before described at p and q. These will be points of the hyper-bola, for F a — F q is equal to the transverse axis A B. If, with F as a centre and F H as a radius, an arc be described, and a second arc be described with F as a centre and N H as a radius, two points in the other… … Fig. 58.
Mechanical engineering
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