Chicago : Engineering and Contracting Pub. Co. · leaf 342
acking or filling between the blocks.No. 126,171. Improvement in WTood Pavements;William W. Ballard, Elmira, N. Y., inventor;patented April 30, 1872.This consists of a pavement composed ofblocks whose bases are cut obliquely to thesides and so cut otherwise that they shall restupon and be supported… … Fig. 13—Filbert & Taylor System; Patented1872. and grooved and rabbeted blocks, the inter-stices between the latter being filled with con-crete. No. 126,521. Improvement in Combined Con-crete and Wooden Pavements; George H.Chinnock, New York, N. Y.. inventor; pat-ented May 7, 1872.The…
Buildings
Internet Archive · University of Illinois Urbana-Champaign · Public Domain Mark 1.0. Free to use for anything.
