Appleton's annual cyclopedia and register of important events: embracing political, military, an ecclesiastical affairs; public documents; biography, statistics, commerce, finance, literature, science, agriculture, and mechanical industry . raced together by angleirons 3 inches by 3 inches by T5^ inch and2£ inches by 2£ inches by T5^ inch, and flatbars 3 inches by -t5T inch, and 2£ inches byT\ inch ; the ribs are 1 foot 6 inches deepby 1 foot wide at the center, increasing inwidth to the abutments, where they are alsosplayed out horizontally to withstand the windpressure. The suspension rods a


Appleton's annual cyclopedia and register of important events: embracing political, military, an ecclesiastical affairs; public documents; biography, statistics, commerce, finance, literature, science, agriculture, and mechanical industry . raced together by angleirons 3 inches by 3 inches by T5^ inch and2£ inches by 2£ inches by T5^ inch, and flatbars 3 inches by -t5T inch, and 2£ inches byT\ inch ; the ribs are 1 foot 6 inches deepby 1 foot wide at the center, increasing inwidth to the abutments, where they are alsosplayed out horizontally to withstand the windpressure. The suspension rods are £ inch di-ameter attached to the vertical members of 300 ENGINEERING. the rib by 1-inch pins at intervals of 5 feet, andto the angle-iron stringer beams, which carrythe roadway. The roadway consists of corru-gated flooring plates £ inch thick, 3 inches deep,and 1 foot pitch. The plates are covered withconcrete of cement and granite chippings, and Hydraulic Canal Lift at Les Fontiiiettes, France.— On the 8th of July took place the official cere-monies attending the opening of this magnifi-cent work near St. Omer on the Neuf-Fosse Ca-nal, which connects the ports of Calais, Grave-lines, and Dunkerque with the canal system to. Fig. 3.—Foot-Bridge over the River Ouse. as the first part of the roadway is necessarilyrather steep, it is stepped out into 2-feet-6-inches treads, with a 3-inch rise. The string-er beams, to which the flooring plates are riv-eted, are of angle irons 6 inches by 3 inches by£ inch, bent to a radius of 114 feet, having aversed sine of 11 feet 6 inches; and an orna-mental rolled iron is riveted to each with coun-tersunk rivets. Two ornamental cast - ironpillars are fixed at each approach, and termi- the southward. It was begun by Louis XIV,and all the barge traffic from the ports in thevicinity of Calais, are obliged to pass throughthis section on their way to Paris or annual traffic amounts to 800,000 tons, andwill become greater with i


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Keywords: ., bookcentury1800, bookdecade1870, bookidappletonsann, bookyear1875