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).
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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).
Physical Description
[2], : ill. ; 23 cm.
Notes
"SPECIFICATION forming part of Letters Patent No. 250,921, dated December 13, 1881. Application filed June 2, 1881. (No model.)"