Raymond, William Galt, 1859-1926, Raymond, William Galt, 1859-1926. cre · New York, J. Wiley & sons, inc · leaf 106
isfastened. This tie is called the head-block. The distance fromhead-block to the point of frog, measured by some makers alongthe straight rail and by others along the curved rail, is called thelead. Probably, technically, the distance along the curved railis the lead, and the distance along the… … Fig. 33. Split Switch four pieces at and opposite i and 3 are called rail braces. Thisswitch is frequently made partially automatic by a spring arrange-ment attached to the first connecting-rod, called the head rod,by means of which, unless the switch is thrown open by the lever,it is kept set in…
Railroad engineering
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