Patent GB-674981-A (GB)
Title: Improvements relating to agricultural machines
IPC: A01B35/08
Filed: 1949-08-17
Abstract: 674,981. Agricultural implements. REINING & CO., GES. H., KUHLMEY. J., and MACKRODT, W. Aug. 17, 1949, No. 21425/49. Class 6(i) and 6(iii) A multi-purpose agricultural machine comprises upright members 1, 2 joined by cross-pieces 3, 4 and connected by members 5 to form a parallel linkwork. U-pieces 64 fixed on tubes 63 adjustably mounted in the rear members 2 are provided with rollers 65 between which is mounted a member 33 having straps 34 provided with slots for the reception of a frame 9, the straps having levers for locking the frame in position. As shown in Fig. 1 the frame is provided with ridging bodies 10 but alternative frames may be fitted having different tools. Wheels 29 are mounted on stub shafts 31 journalled in bearings 7 which are provided with spigots 8 which are inserted in the members 1. The wheels are joined by a steering bar 16. A steering rod 13 is connected to a fork 14 pivoted on the cross piece 4 which is itself rotatable so that the rod 13 will swing transversely and vertically. The fork 14 is connected to the steering bar 16 so that transverse movement of the rod causes movement of the wheels. The end of the fork 14 co-operates with a forked member on the steering bar 16 to bring the wheels into line with the longitudinal axis of the machine when the steering rod 13 is raised vertically. A bracket 21 engages the rear cross-piece 4 so that the raising of the steering rod 13 causes the tools to be raised. Springs 11 are provided to balance the weight of the tools. The fork may be disconnected from the steering bar and the wheels locked and the steering rod 13 may be used to move the member 33 and tools transversely, a link 77 engaging a fork 71 mounted on a member 68 rotatable on member 33. The fork 71 is guided on member 4 and a handlever 70 on member 33 cooperates with a quadrant 72 to vary the angle of cut of the implements. When wheel steering is used, the link 77 is disconnected and the pin 73 inserted in a bracket 74 and through member 33. Adjustable handlebars 28 are provided on the steering rod 13 and one or two seats (not shown) are fixed on supports mounted on the rear top member 3. The mounting for the tools comprises a U-member 48 embracing one side of the frame 9 and clamped in position by a tapered bolt 49 having a nut 51 and cap 55 which wedges the tool stem against a pin 54 when the nut 51 is tightened. Disc furrowers may be resiliently mounted on the frame 9 or alternatively as shown in Fig. 13 the discs 78 together with openings tools 87 are mounted on a link 8 and are each pressed into the ground by a lever 85 having a spring urged roller 83 co-operating with the back 82 of the link 81. The position of the lever raises the effective pressure on the disc and the tools may be individually raised by the engagement of the roller 83 with a projection on the link 81. The machine may be used as a seed sowing machine, manure distributer, roller harrow or a rake. When used as a rake the rake tines are mounted on bushes rotatable on a transverse axle and the end of the tines remote from the ground co-operate with a transverse bar movable upon upward movement of the steering rod 13 to raise the tines to release the material collected.