Chicago : Engineering and Contracting Pub. Co. · leaf 445
nstead of by means ofwood strips. It was intended that the blocksbe manufactured at a central plant. 430 ENGINEERING & CONTRACTING Vol. XXXVI. No. 17. An interesting type of sectional wooden pav-ing blocks is covered by patent No. 920,805granted to Edward Alcott of Pittsburgh in1909. One… … Fig. 3—Wood Pavement with Broken StoneBase. of the separate sections in opposition. Anotherfeature of the invention is the means em-ployed for binding or fastening together theseveral sections of the block. This is accom-plished by the use of the bonding dogsshown in Fig. 5 or the dowel nail shown…
Buildings
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