rable 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 Preiites. 1 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, Mr. George B. Whiting, of Harvard, Worces-…
Patents · Water · Wheel · Planing · Railroad · Patent offioe · Iron · English patent · Carbonic acid · Wrought iron · Lower parts · Warm water
Internet Archive · Public domain (published before 1931). Free to use for anything.
