Chicago : Engineering and Contracting Pub. Co. · leaf 337
wly melt it will penetrate into the wood andaid in preserving it from decay. In Figs. 6 and 7 is shown another form inwhich the Nicolson pavement could be con-structed. In this the long blocks were ar-ranged side by side and in rows transverselyof the roadway, and with spaces about 1 in.thick… … Fig. 3—Sketch Showing Shape of Blocksand Arrangement Under Carey Pat-ent of 1841. the foundation or support resting on the sur-face of the ground, created with the rows ofthe blocks long cells or grooves extendingtransversely across the roadway The grooveswere tilled with broken stone or gravel…
Buildings
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
