Iles, George, 1852-1942 · New York, H. Holt and company · leaf 45
erpool, he asked for bids on five hun-dred tons of such a rail as he had whittled, since known byhis name the world over. As first designed, the base of thisrail was wider at its points of support than elsewhere.Afterward it was rolled throughout with a uniform breadthof three inches. The first… … An enlarged section of an Edge-rail to show the disposition ofparts which gives greatest strength. If the rectangle a b d c con-tains the same quantity, the strength of the rail A B D C is to thestrength in the form of the rectangle as 1^ is to 1. [Prom A Practical Treatise on Railroads and…
Inventors
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