GB832907A - Improvements in or relating to draw-bar devices for agricultural implements - Google Patents

Abstract

832,907. Agricultural implements ; haymaking. VAN DER LELY N. V., C. Aug. 22, 1956 [Sept. 13, 1955], No. 26694/56. Classes 6(1) and 6(3). An implement, of the kind which is provided with a triangulated frame 21, 22 for attachment to tractor draught-links, is attached to a tractor provided with such links by a wheeled drawbar 52, 55, having at the front end a connection 53 to the tractor 51 and at its rear end a pair of transversely-spaced connections 62, 63 for the lower points of the triangulated frame on the implement. The drawbar is T-shaped in plan, the short limb terminating in land-wheels 60, 61. The lug 63 is fixed, but the lug 62 is transversely adjustable. The upper hitch-point is connected by a spring 47 to the implement frame and by a cable 66 to a winch 67 on the drawbar adjacent to the tractordriver's seat 68. The triangulated frame includes a horizontal beam 18 on which an arm 23 is pivoted horizontally and is held by pinning on an arcuate member 19. A tube 27 is pivoted to the arm 23 about an axis 24A and a tube 28, freely rotatable in the tube 27, is secured to a beam 29. Rake-wheels 42-45 are mounted on brackets 40, 41 freely rotatable in tubes 38, 39 which are adjustable along the beam 29 by screwed rods 35. The rake-wheels float freely in use, but for transport the tubes 27 and 28 are locked together by a bolt 70 and the implement is lifted about the axis of the htich-points 16, 17 by the winch 67. Specification 832,906 is referred to.