Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 515
to push forward the structure on which it is supported, in railway-bridges especially, great care is taken to brace the structure in every way—ver-tically and horizontally, laterally and longitudinally. If the plank c be a tim-ber-sill, and the piles beneath be replaced by a masonry-pier, the… … Fig. 1193. dimensions shown ; the ties are extended beyond the guard-rail on one side tosupport a plank walk. The bent is about 15 feet high. Bridge-Trusses.—Whatever maybe the form of truss or arrangement ofthe framing, provided its weight is supported only at the ends, the tension ofthe lower…
Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
