t tenacious and durable charac- in all iron structures, is to employ wrought-iron to a heavy loss to the railroad company for extra trans- ter in the construction of bridges on railroads and resist tension, torsion, or transverse strain; and portation of freight and passengers, and loss of busi-… … JONES’S PATENT TRUSS BRIDGE. men to adopt wood instead of iron for structures of the kind underdiscussion, when it is known that the average durability of uncovered wooden bridges in stration of the above facts, we have only to refer to frame, similar to the ‘ Howe Truss ’’ in its principles this…
Internet Archive · Public domain. Free to use for anything.
