Chicago : Engineering and Contracting Pub. Co. · leaf 273
nts, and a longitudinal rib forminga rail the upper surface of the latter being levelwith that of the transverse ribs and the ribsbeing cut away near the rail for the free pas-sage of the flanges of the car wheel.No. 33,610; Improvement in Iron Pavements:Lucius Stebbins. New York, N. Y.,… … Fig. 11. pressure of a flat surface, and when not de-pressed furnish a foothold for the horses.No. 38,568; Improvement in Iron Street Cross-ings; Lionel .Tobert DEpineuil, Paris,France, and James M. Letts, Washington,D. C, inventors; patented May 19, 1863.The invention consists in providing the…
Buildings
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