| 摘要 |
A spreader box apparatus for use with a pavement applicating machine in spreading a pavement mixture onto a surface to be paved includes a frame, and a pair of side walls connected to the frame and defining a dimension of width which corresponds to the predetermined lateral dimension of the pavement mixture to be spread by the apparatus. The apparatus includes a plurality of spreader shafts for spreading the pavement mixture within the apparatus between the side walls and the side walls include skids on which the side walls are supported for movement relative to the surface. At least once screed is provided for metering the thickness of the pavement mixture to be spread by the apparatus. The width of the apparatus may be adjusted by moving the side walls horizontally along separate symmetrical arcuate paths each extending between a first position in which each side wall is disposed at a maximum distance from the central axis and a second position in which each side wall is disposed at a minimum distance from the central axis. This variation in the width of the apparatus results in a corresponding change in the predetermined lateral dimension of the pavement mixture to be spread.
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