Journal of the Association of Engineering Societies (1881)
Association of Engineering Societies (U.S.) · New York, [etc.] Board of Managers · leaf 195
ia. Of the five cars used three were idlers. The cars which supported the girder were gun-trucks, and each end of the girder was supported on and rigidly attached to a pivot frame, thus enabling the girder to move freely when riding around the curves. Provision was also made for the longitudinal… … Fig. 4. Shiffler Bridge Company, 123-F00T Span in Philadelphia. iron. On account of the great depth and length of the girder it was found to be impossible to transport the load directly over the main line of the Pennsylvania Railroad. A route which gave the proper head-room was carefully selected,…
Engineering
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
