| 摘要 |
810,601. Agricultural implements. VAN DER LELY., C. Aug. 11, 1955 [Aug. 13, 1954], No. 12100/58. Divided out of 810,600. Class 6(1). A soil tilling machine comprises rotatable soil tilling members mounted on shafts 1, 2, 3, 4 dispersed with their axes at an acute angle to the direction of travel and arranged so that the members operate at a progressively greater depth towards the rear of the machine so that the top soil is first displaced by the foremost blades and thereafter the soil at the lower levels is displaced by the following deeper set blades. The members are driven from a common shaft 3 by chain and sprocket gearing. |
