Raymond, William Galt, 1859-1926, Raymond, William Galt, 1859-1926. cre · New York, J. Wiley & sons, inc · leaf 111
wn in Fig. 41, in which one set of points is advanced about2 feet beyond the other. In either case both switches may beoperated by suitable connecting-rods from one stand. Crossings and Slips. — When one track crosses another, thearrangement of rails is known as a crossing, and four frogs… … Fig. 42
Railroad engineering
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