(under subclass 381) Apparatus including a structural steel bar fixed outside the grader itself to create a track for maintaining the grader on a predetermined path of travel.
(1) Note. In the process of grading a road, the surface is usually plowed and the main body of the material removed by the grader scraper. The tracks are then placed in position and the grader is passed over the surface to remove the remaining loose material and to give the roadbed the desired contour. The tracks serve as a gauge for the scraper carried by the road grader as well as maintaining the grader at a predetermined level whereby the proper height and cross section of the roadbed between the forms are established.
SEE OR SEARCH CLASS
404, Road Structure, Process, or Apparatus,
119, wherein the means to level or smooth previously laid road material is positioned and guided above the roadway by the side forms which also serve as a trackway.
