. Railroad construction, theory and practice; a text-book for the use of students in colleges and technical schools . Fig. 139.—Ramapo Patent Switch Stand. Non-automatic. § 302. SWITCHES AND CROSSINGS. 341 In Fig. 139 is shown a design in which the arc of the throwinglever is parallel to the track, an important feature in quickswitching work. 302. Tie-rods. These are fastened to the webs of the rails bymeans of lugs which are bolted on, there being usually a hinge-. 2^S^ -^ Fig. 140.—Forms of Tie-rods. it between the rod and the lug. Two such tie-rods (three for 0-foot switch) are generally ne
. Railroad construction, theory and practice; a text-book for the use of students in colleges and technical schools . Fig. 139.—Ramapo Patent Switch Stand. Non-automatic. § 302. SWITCHES AND CROSSINGS. 341 In Fig. 139 is shown a design in which the arc of the throwinglever is parallel to the track, an important feature in quickswitching work. 302. Tie-rods. These are fastened to the webs of the rails bymeans of lugs which are bolted on, there being usually a hinge-. 2^S^ -^ Fig. 140.—Forms of Tie-rods. it between the rod and the lug. Two such tie-rods (three for 0-foot switch) are generally necessary. The first rod is some- les made without hinges, which gives additional stiffness to 3 comparatively weak rail-points. The old-fashioned tie-rod, ving jaws fitting the base of the rail, was almost universally ed in the days of stub switches. One great inconvenience in eir use hes in the fact that they must be slipped on, one by one, ^er the free ends of the switch-rails.
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