Appleton's cyclopædia of drawing, designed as a textbook for the mechanic, architect, engineer, and surveyor (1866)
Worthen, William Ezra, 1819-1897, [from old catalog] ed, Appleton, firm, publishers, New York. (1866. D. Appleton & co.) [from old catalog] · New York, D. Appleton and company · leaf 266
so connected by aliorizontal tubular brace. It will be tlms seen that this frame is a sys-tem of l)racing and cross-bracing, in which the material is most economi-cally disposed to resist the various strains. The bed-plate consists of a single casting, 32 feet long and 0 feet broad,which is… … 195 PLATE XXXII. ^.
