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#Railroad track separator define portable
Adjustable Separator – A pair of serrated metal blocks that act as a filler between the running rail and guard rail to provide a variable flangeway.Īdzing Machine – Portable power-operated machine designed to adz the rail seat on ties to provide proper bearing for rail or tie plates.Īlignment – The horizontal location of railroad as described by curves and tangents.Īngle Bar – A forged steel bar for connecting the ends of rails with bolts similar to a joint bar, but having leg or angle shape to gain support from the rail base.Īnnealing – The process of raising and holding the temperature of a steel product above its critical temperature range for a time, followed by slow cooling for the purpose of equalizing internal stresses and increasing ductility and toughness.Īnti-Splitting Iron – A piece of steel strip, beveled on one edge and bent to desired shape, for application by driving into the end of a tie or timber to control its splitting.Īpron – Ferry or Brake – A bridge structure supporting tracks, connecting the car deck of a car ferry with the tracks extending to land, hinges at the shore so that it is free to move vertically at the outboard end to accommodate varying elevations of ferry.īallast – Rock or gravel material placed on the roadbed for the purpose of holding the track in line and surface.īallast Curb – A longitudinal timber placed along the outer edge of the floor on ballast deck bridges to retain the ballast.īasic-Oxygen Steel Making – The term basic oxygen steel making is used generically to describe a process in which molten iron is refined to steel under a basic slag in a cylindrical furnace lined with basic refractories by directing a jet of high-purity gaseous oxygen onto the surface of the hot metal baths.īatter – the flattening of the running surface at rail ends from wheel impact.īessemer Process – The conversion of liquid pig iron to steel by forcing air at atmospheric temperature through the metallic bath in a converter in which not extraneous fuel is burned, resulting in the oxidation or reduction of the carbon, manganese and silicon to the extent desired and their removal in the form of slag.