Inventors at work, with chapters on discovery (1906)
Iles, George, 1852-1942 · New York, Doubleday, Page & company · leaf 58
Palladio trusses. BRIDGES FOR RAILROADS 23 Theodore Burr, in 1804, in a wooden bridge over the Hudson atWater ford, New York. This bridge had spans respectively of154, 160 and 180 feet, stretches impossible to single wooden beams. … Burr Bridge, Waterford, N. Y.DO, HE, struts. DE, HO, ties. DHEO, panel. Professor J. B. Johnson, an eminent engineer, says that this is themost scientific design ever invented for an all-wooden bridge;during fifty years it stood unrivaled as a model for highway pur-poses in this country. The Burr…
Inventions · Inventors
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
