Inventors at work, with chapters on discovery (1906)
Iles, George, 1852-1942 · New York, Doubleday, Page & company · leaf 71
Plate girder bridge. construction are preferred; usually for lengths of from 20 to 125feet, plate girders are chosen; for spans of 125 to 150 feet rivetedlattice trusses are built; for spans of 150 to 600 feet pin-connectedtrusses are employed. Here we reach the economical limit of alength for… … Part of lattice girder bridge, showing rivets. Whatever the breadth of the stream or the chasm over whichhe is to build a roadway, each case must be studied in the light ofits special circumstances. There must be due regard to businessas well as to engineering considerations; the designer will bear…
Inventions · Inventors
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