1. A farm implement of the foldable, sectional tow type comprising a wheeled cart bearing a central tool supporting section and mounting said central section for movement about a generally horizontal axis between a work performing position and a transport position; a pair of tool supporting wing sections, one on each side of said central section, each wing section being hingedly connected to said central section and movable therewith between said transport posItion and said work performing position, each of said wing sections being flexible so as to permit movement of at least one portion of each wing section relative to another portion thereof to allow said wing sections, when in the work performing position, to flex to conform to the contour of the underlying terrain whereby the length of each wing section can be maximized to thereby maximize the width of swath of the implement when said central section and said wing sections are in said work performing position; and means on each of said wing sections and interconnecting said portions for dampening oscillation between said portions when said wing sections are in said transport position while allowing said portions to flex when said wing sections are in said work performing position, each dampening means includes a pair of resilient elements one adapted to be compressed when said portions move relative to each other in one direction, the other adapted to be compressed when said portions move relative to each other in a direction opposite said one direction.

2. A farm implement of the foldable sectional tow type comprising: a wheeled cart; a central frame adapted to mount ground working tools pivotally mounted on said wheeled cart for movement between a generally horizontal work performing position and a generally vertical, transport position; a pair of wing sections, one on each side of said central frame; hinge means pivotally connecting each of said wing sections to the adjacent side of said central section whereby said wing sections may move between said generally horizontal work performing position and said generally vertical transport position with said central section; each of said wing sections being defined by a plurality of frames each adapted to mount ground engaging, work performing tools; additional hinge means hingedly interconnecting the frames of each wing section to permit relative movement therebetween about a generally horizontal axis extending approximately parallel to the direction of travel of said implement when said frames are in said work performing position; and means resiliently interconnecting the frames of each wing section for substantially precluding said wing section frames from oscillating relative to each other when said sections are in said generally vertical transport position by dampening oscillatory movement while allowing said frames of each wing section to undergo said relative movement when in said work performing position, said resilient means comprising pairs of resilient elements, each pair of resilient elements being located at a respective juncture of two frames of each wing section, and means at each said juncture for (a) compressing one of the associated resilient elements when said frames pivot in one direction relative to each other and (b) compressing the other of the associated resilient elements when said frames pivot in the opposite direction relative to each other.