| 摘要 |
1,155,446. Agricultural implements. G. H. PALM. 22 Sept., 1967 [7 Dec., 1966], No. 43242/67. Heading A1B. A combined ploughing and tilling apparatus comprises a plough chassis 1, a tilling device including a supporting structure 12 carrying a rotary tiller 23 and being pivoted to the plough chassis 1 for lifting and lowering movement, the supporting structure also being arranged to abut against the plough chassis by means of a roller 7, spring means 9 being provided to urge the structure into its lowered position. A shaft 20 carrying the tilling device is mounted in bearings on rods 19 which are vertically adjustable in sleeves 17 mounted in the ends of a rod 11. |
