| 摘要 |
A trailer-mounted sand hopper having a trailer pivotally mountable at the front end of a motor-driven truck. The sand hopper is tiltably mounted on the rear portion of the trailer and is releasably secured to the rear portion of the trailer. The hopper is capable of being tilted to vertical and horizontal positions with respect to the trailer by engagement of a winch and cable system. The hopper is provided with backing plates which facilitate the engagement and disengagement of the hopper from the trailer.
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