Built up crossings
Crossings consist of point and splice rails, wing rails, and check rails suitably held together. The assembly is made out of rails normally used for track. The point and splice rails form the vee of the crossing and to avoid the junction of these components at the nose, which would obviously be a weakness, the splice rail is housed in a notch in the point rail. The point and the splice rails are held together by turned bolts where the point and splice rails diverge they are held in their relative position with the distance blocks and bolts. Wing rails which are provided on either side of the vee and rigidly held to the vee at the requisite distance, with distance blocks and bolts, which is 44 mm for BG and 41 mm for MG. Early damage to the nose of the crossing is prevented by planning up to 6 mm from the top of the rail at the nose and running out the cut in about 90 mm along the vee. The lowering of nose compels wing rail to support the wheels as the pass over the narrow section at the nose. Wings have flared ends. Check rails which are made from ordinary rail pieces are held to the running rail with distance blocks and bolts.
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| Built up crossings |
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