| 摘要 |
A tractor carries a vertically adjustable frame supporting a horizontal shaft for a supply roll of silt fence fabric. A flat vertical plow blade is mounted on the frame and has a front surface and a rear surface. A thinner flat vertical fin is supported directly behind the plow blade by a horizontal fabric guide bar attached to the frame. The fin has a downwardly and rearwardly curved front surface for receiving an intermediate portion of the fabric directed around the guide bar and for folding an edge portion of the fabric into the slot formed by the plow blade. After the ground is compacted by a tractor wheel, wood stakes are driven into the ground by a hydraulically actuated cylinder device mounted on a side of the tractor frame between the front and rear wheels, and the fabric is attached to the stakes.
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