| 摘要 |
The tool has upright tubular body having tubular wall with vertical elongated opening. There is an auger positioned in tubular body, this auger having blade segments extending one halfway around circumference of central shaft and positioned such as to be on top of each other when observed from the tubular axis of the auger. There is a hollow central shaft through which water may be injected, and a nozzle with one end attached to central shaft and the other end radially outward and pointing upwards towards the top end of the auger, such that water injected down the central shaft would be ejected upward by means of the nozzle. There is a flange attached to the bottom edge of the elongated vertical opening, and a crushing bar conformably attached to the inside wall of the tubular body opposite the vertical opening, this crushing bar having protrusions spaced vertically along the bar, between the rotating auger segments. |
