Date: December 13, 1881
Creator: Ibel, Justus H.
Description: Patent for a new and improved bridge. This design consists in "the combination, with the base, stringers, the top arched bars, and the upright tie-bars, of the intermediate stringers, arched bars, and their horizontal tie-bars, and wedge-keys . . . whereby the structure is greatly strengthened" (lines 85-91).
Contributing Partner: UNT Libraries Government Documents Department