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 350
pletely braced, as each does not permit of an effecttaking j)lace, which would necessarily result from a change of figure.Hence also, any system composed of these forms, properly connected,breaking joint as it were into each other, must be braced to resist theaction of forces in any direction; but… … Fig. 52. Yis. 53. We instance figs. 52 and 53, as illustrative of two systems of bridgetrussing, the one being an elevation of Howes bridge truss, the other ofPratts. There are many other forms of trussing, but sufficient has beensaid to explain the principles of most constructions. For farther…
