Chicago : Engineering and Contracting Pub. Co. · leaf 272
uitable pavement may be substituted,if preferred. The size of the road-bed or theportions between the outer tracks and theditches may be surfaced in any manner de-sired. The rails, in order to prevent themfrom spreading, are connected at suitable in-tervals by transverse braces of iron, saidbraces,… … Fig. 9. tile drains 10 are laid, this being of coursedone prior to the preparation of the surfaceof the road. The latest development in iron pavement isshown in Fig. 15. The patent, No. 992,573,was granted on May 16, 1911, the inventorbeing Peter P. McMenamin of Jersey City,N. J. In the letters…
Buildings
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
