Chicago : Engineering and Contracting Pub. Co. · leaf 590
Fig. 6—King Combined Curb and Gutter. Fig. 7—Wainwright Bar. The main features of this invention consistedi the combination, with the grating-bars, ofpacing truss-blocks for separating the bars. hese blocks were made so as to meet eachther below the main bars. All of the parts[ere joined by…
Buildings
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer04inte-271-121.webp)
