The naval architect's and shipbuilder's pocket-book of formulae, rules, and tables and marine engineer's and surveyor's handy book of reference (1884)
Mackrow, Clement · London, C. Lockwood and co. · leaf 24
16 GEOMETRY Let BD be the generating circle, and ab the directing circle ;.divide the generating circle into any number of equal parts—say, 10—as 1, 2, 3, &c., and set off the same distances round thedirecting circle ; draw radial lines from A through these lastpoints, and produce them to an…
