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Scientific American, Vol. 39, No. 19 (1878) (1878)
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eight of the bridge at the center of the winding lever; the second attends to the tension of the the span is to be 135 feet above high water; and the total wire, which he controls by means of the spokes of the drum, height of the towers 277 feet. The entire length of the while the other two apply… … © 1878 SCIENTIFIC AMERICAN, INC.Internet Archive · Public domain (published before 1931). Free to use for anything.
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