| 摘要 |
A machine is provided for clearing a subsurface groove, e.g. a rail flangeway, of debris or ice, the machine comprising: a frame; mounting means for mounting the frame on a vehicle, the vehicle for moving the machine across t he surface in a direction of travel generally parallel to the length of the subsurface groove; at least one rotating member mounted on the frame for rotation about an axis generally perpendicular to the direction of travel; drive means in communication with the rotating member to provide rotation; and at least one elongate clearing member mounted on the rotating member, the elongate clearing member being configure d to fit inside the subsurface groove; such that, as the vehicle moves the machin e across the surface, rotation of the rotating member causes the elongate clearing member to intermittently enter the subsurface groove to clear the subsurface groove.</ SDOAB>
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