International Correspondence Schools · Scranton, Pa. : The Colliery engineer co. · leaf 525
placed for the main track is indicatedby dotted lines at c and/! The switch rails are commonlyused in lengths of 30 feet, the standard rail length, of whichonly 22 feet are free to move or slide, the remaining 8 feetbeing spiked to the ties, as shown in the figure. The mov-ing portions of the… … TRACK WORK. Ill3 The first switch rod g is called the head rod. It extendsoutside the rails, and by means of the connection rod ;//,it is attached to the lever n of the switch stand, by meansof which the switch rails are moved from their connectionwith the main track rails o and />, to a…
Railroad engineering
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