Chicago : Engineering and Contracting Pub. Co. · leaf 182
1, and having removableends, each box sufficiently large to containtwo standard ties spaced the standard dis-tance apart; the boxes were filled with variouskinds of ballast and roadbed material. A heavily loaded truck was designed to runback and forth on the track so that the effectof its load… … Fig. 3—View of Crossing Showing Special Work Being Installed. culty in putting in the numerous pieces andlining up the complete installation. After running out the intersection andchecking the angle, a permanent pin wasdriven and the distances to all other pointswere located from here. If a plain…
Buildings
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
