| 摘要 |
1,156,341. Seed drills. MASSEY-FERGUSON-PERKINS Ltd. 24 Aug., 1966 [10 Sept., 1965], No. 38838/65. Heading A1D. A seed drill is provided with a coulter assembly comprising a furrow opening device 13 mounted on a drag bar 11 which is pivotally attached to the drill so that when the furrow opener 13 is in operation the drag bar 11 extends rearwardly and upwardly relative to the direction of travel of the drill. A rotatable disc 20 cuts a slit in the soil and the furrow opener comprises two angled discs 15 mounted on a device which provides ducts for fertilizer and seed fed down tubes 17, 18. A press or depth control roller may be mounted behind the furrow opener 13. |
