Chicago : Engineering and Contracting Pub. Co. · leaf 588
in place.Each plank has a lateral rib on one edge anda corresponding recess on the other, so thatthey may be fitted together the same as wood-en boards. Concrete foundation blocks areplaced beneath the points of union of thestringer pieces to prevent sagging. A brief synopsis of other patents… … Fig. 1—Combination Metallic Curb, Gutter and Sidewalk, Cornell Patent. 574 ENGINEERING & CONTRACTING Vol. XXXVI. No. 22. to the development of metallic curbs and gut-ters. Figure 4 shows a cross section of oneof the earlier types of combined metallic steelcurb and gutter. A patent (No. 23,973)…
Buildings
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