Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 514
Fig. 1191. driven in an inclined position, and the heads bolted to the piles adjacent. Thepiles are made into a strong frame laterally by the planks h and c, and plank-braces d d on each side of the piles, bolted through. The string-pieces of the … Fio. 1192. bridge rest on the cap. Longitudinal braces are often used, their lower endsresting on the plank h—which should be, then, notched on to the piles—andtheir upper ends coming together, or with a straining-piece between, beneath33 498 ENGINEERING DRAWING. the string-pieces, acting not only…
Mechanical drawing
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