| 摘要 |
The ground-cultivation machine has a number of rotors on vertical axes in a row at right angles to the travel direction and power-driven. Each of these has a bracket on which one or more tines of strip material are fixed, their working portions extending downwards and outwards. - The working portion of each tine is twisted about its lengthwise axis for an increasing amount from the top over its whole length (9), so that the leading edge in the direction of rotation is always further from the axis of rotation than the trailing edge.(2/3) |
