The illustrated architectural, engineering, & mechanical drawing-book : for the use of schools, students, and artisans ; upwards of 300 illustrations (1856)
Burn, Robert Scott · London : Ward and Lock, 158 Fleet Street · leaf 48
i; from/to o ; from r/ top;from 8 to s; from 1 to J ; from 5 to r; from 4 to x ; from 7 to j/; and so \a/ … on to the point of the square corner at 3. These various points thus ob-tained are the centres from which the curve is described. Suppose thepoint i, fig. 79, to be the under line of abacus of capital, as b (see tig. 70),from the centre, on line e h, fig. 79, corresponding to the point c, fig.…
Architectural drawing · Mechanical drawing
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