International Correspondence Schools · Scranton, Pa. : The Colliery engineer co. · leaf 582
27 1,332 1,444 1,303 1,520 1,736 45 1,372 1,602 1,832 1732. Classes of Trestles.—Wooden trestles are divided into two general classes, viz., pile trestles, in whichthe bents consist of piles united by a cap, and friiniedtrestles, in which the bents consist of squared timbersframed together. Pile… … Fig. 548. 1733. Technical Terms and Names.—In orderthat the student may understand the various parts com-posing a trestle, the following technical terms and names are
Railroad engineering
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