1. Trailer apparatus for a wide width implement comprising a trailer having a trailer body, a turntable mounted on said body for rotation about a vertical axis located nearer to one side of said body, hitch means adapted to be attached to spaced portions of the implement to elevate and supportingly carrying the implement said hitch means including a pair of arms, said arms having first end portions mounted on the turntable for pivotable movement about a common horizontal axis and horizontally spaced second end portions adapted to be supportingly connected to the implement, first means mounting the hitch means on the turntable for movement therewith and relative thereto between an implement pickup position and an elevated implement carry position, and second means on the turntable and connected to the hitch means for moving the hitch means between its positions when the implement is attached to the hitch means said implement in its elevated position being swingable generally over the other side of said trailer body.

4. Trailer apparatus for a wide width implement comprising a trailer having a trailer body, a turntable mounted on said body for rotation about a vertical axis, hitch means including a pair of arms having first end portions mounted on the turntable for pivotable movement about a common horizontal axis and horizontally spaced second end portions adapted to be supportingly connected to an implement to be carried, said hitch means including a hitch bar having a first end portion and a second end portion adapted to be connected to the implement at a higher elevation than the arms second end portion, said hitch bar being mounted for pivotal movement about a horizontal axis parallel to said common axis, first means mounting said arms on the turntable for movement therewith and relative thereto between an implement pickup position and an elevated implement carry position, second means including a piston cylinder combination having a cylinder and piston rod, the cylinder being mounted on the turntable for pivotal movement about a horizontal axis and the piston rod being connected to said arms for pivoting the arms about said common axis as the piston rod is moved between an expanded position and a retracted position, a common horizontal shaft, and means for mounting said shaft for pivotal movement, said shaft providing said common axis and said axis of pivotal movement of the cylinder to render said common axis and cylinder axis of pivotal movement coextensive, that said arm first end portions are attached to the shaft in axial spaced Relationship to one another, and that the cylinder is mounted on the shaft for pivotal movement relative the shaft between the arms first end portions.

10. Trailer apparatus for carrying an implement, for example a three hitch point agricultural implement that has a transverse width substantially greater than its length in its normal direction of travel in use, comprising a trailer that includes a trailer body having a rear portion that has a rear edge, hitch means adapted for being connected to the implement for elevating and carrying the implement, a turntable mounted on the trailer body for rotation of about 90* about a vertical axis between an implement pick-up position and a position in which the implement is parallel to the direction in which the trailer apparatus travels along the road, and first means mounted on the turntable for rotation therewith and movement relative thereto connected to said hitch means for moving at least part of the hitch means between a lowered datum position extending rearwardly of the rear edge portion when the turntable is in its pick-up position and an elevated implement carry position that the implement is higher than the turntable when the hitch means is attached to the implement, said hitch means including a pair of elongated arms having first end portions adapted to be attached to the lower two hitch points of a three hitch point implement, second means for mounting the arms on the turntable to pivot about a horizontal axis remote from the arms first end portions, and means on said turntable adapted to be attached to the upper hitch point of the three hitch point implement.

14. Trailer apparatus for carrying an implement, for example a three hitch point agricultural implement that has a transverse width substantially greater than its length in its normal direction of travel in use, comprising a trailer that includes a trailer body having a rear portion that has a rear edge, hitch means adapted for being connected to the implement for elevating and carrying the implement including an upper third hitch point attachment bar, a turntable mounted on the trailer body for rotation of about 90* about a vertical axis between an implement pick-up position and a position in which the implement is parallel to the direction in which the trailer apparatus travels along the road, and first means mounted on the turntable for rotation therewith and movement relative thereto for moving at least part of the hitch means between a lowered datum position extending rearwardly of the rear edge portion when the turntable is in its pick-up position and an elevation implement carrying position that the implement is higher than the turntable when the hitch means is attached to the implement, said hitch means including a pair of elongated arms having first end portions adapted to be attached to the lower two hitch points of a three hitch point implement and including a link bar having one end portion pivotally connected to said attachment bar and a second end portion, and second means for mounting the arms on the turntable to pivot about a horizontal axis remote from the arms first end portions, and means connecting said link bar second end portion to the turntable for pivotal movement about a horizontal axis parallel to the axis of pivotal movement of the arms, said bar and link being of relative length and the link being pivotally connected to the turntable at a location to maintain the third hitch point at a higher elevation than the lower two hitch points when the arms are attached to the implement and moved to their elevation position for carrying said implement.

16. TrailEr apparatus for a wide width implement comprising a trailer having a trailer body with a wheel at each side thereof and a drawbar extending forwardly therefrom, hitch means adapted to be attached to spaced portions of the implement to elevate and supportingly carry the implement, means on said trailer body adjacent one side thereof and nearer one of said wheels connected to and mounting said hitch means for angular movement between an implement pick-up position at the rear of said body and an implement carry position generally above the other side of said body, said mounting means including a turntable mounted on said body for rotation about a generally vertical axis and further including a horizontal shaft carried by said turntable to provide a horizontal axis about which a portion of mounting means is also supported for pivotal movement thereabout.