GB776762A - Improvements in or relating to agricultural implements - Google Patents

Abstract

776,762. Agricultural implements. FERGUSON DE FRANCE SOC. ANON., H. May 12, 1954 [May 12, 1953], No. 13181/53. Class 6(1). In a tractor-drawn plough, the implement supports 1, 1A are formed integrally with a central boss 3 in which are attached bars 5 spaced apart in the plane of the supports. As shown applied to a twofurrow reversible plough two sets of bars 5 are spaced apart laterally and braced by a bar 16 secured in the bosses 3. The front ends of the bars 5 are secured by bolts 23 in laterally spaced bosses 6 mounted on a cross-piece 7 provided with lugs co-operating with a swivel pin 10 and lugs 9 to form a swivel joint on a flange 12 at the rear end of a shaft 13 which is rotatable by hydraulic mechanism which is under the control of the hydraulic system of a tractor to which the implement is attached by a three-link hitch mechanism. The hydraulic mechanism may be as described in Specification 776,761. The angular setting of the plough assembly may be adjusted by means of set screws 14 in the crosspiece 7 which engage against abutment surfaces 15 on the flange 12. Disc coulter and skimmer assemblies 18 are mounted on cranked stems 18A which are held in recessed lugs 19 on clamps 20 mounted on the bars 5 and clamped by means of eye-bolts 21 permitting fore-and-aft and vertical adjustment of the coulter assemblies. Fore-and-aft adjustment of the plough bodies may be provided by the provision of a plurality of spacers 6A which can be located either to the rear or in front of the bosses 3. To convert to a single furrow plough, the rear plough bodies together with the supports may be removed and replaced by a boss having means for reattachment of the bracing rod 16,