Chicago : Engineering and Contracting Pub. Co. · leaf 272
right angles to the table of the shell, the loweredge of which is provided with an inwardlyprojecting lip or flange. This shell was closedupon the top or table side and open at thebottom, and the exterior surface of the tablecould be roughened in any desired design tofurnish footholds. Into this… … Fig. 7. Fig. 14 shows a tranverse view of a roadconstructed according to the invention ofElias A. Store, patent No. 443,059. Themethod of constructing this road mav be de-scribed as follows: Preparatory work is doneby preliminary grading and packing the road- trally upon the road are laid…
Buildings
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
