eir seats inthe blocks by spikes, the apertures for which are prefer-ably cast with a bend and twist, so that the upper halfis out of alignment with the lower half of the aperture,the spike when driven then following the shape of theaperture, by which it is bent and twisted in for itslower half, so… … ^ SATTNDEBS IHFBOVED METALLIC BAILBOAD TIE. plate to prevent spreading of the rails, the base of eachrail resting in a longitudinal recess in the block. Oncurves or switches the guard or switch rails are fastenedon an extension of the block, formed with a recessunder the rail for the nut or head of…
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