Fig. 138.
In the above arrangement there is no tie below the joint, but the latter lies midway between two sleepers.
Another method of “fishing” is, to place a piece of ᕼ or ⊤ iron beneath the rail, bolting it firmly to the lower flanges.
In bolting rails together at the ends, the bolt holes must be cut a little larger than the bolt, to allow for the expansion of the iron.
The effect of the joint upon the passing carriage, is the jumping motion; the middle of each rail being a summit, and the end a depression, (the strength at the joint being taken away); and if the joints are not opposite to each other, there is generated a very injurious and dangerous side rocking. Figs. 138, 138 A, and 138 B, show the methods of fishing.
Fig. 138 A.
Fig. 138 B.