urable in C C main cables, or ties. The sway-braces tion to the pressure of a load on the bridge. also adopted to provide for any change that and under side of girders between C C at B. its construction. Bridges on this plan may may occur in the bearing of the joints. There It will be observed that… … Improvement in Presses. an extent of 500 feet span. <A bridge built said plate to revolve, and the balls—(or rollers strong and heavy to form a protection to the may be used) to travel down the spiral in- on this plan, 72 feet span, weight 144 tons, bridge. The four ends weighs each 505 Ibs. Mr.…
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