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A towbar for a vehicle. The towbar includes a yoke and a drawbar rotatably connected to the yoke. The drawbar is attached to the towing vehicle. A pair of connecting bars is attached to the yoke and to the vehicle being towed. A lock assembly is connected between the yoke and the to drawbar. The loc

A towbar for a vehicle. The towbar includes a yoke and a drawbar rotatably connected to the yoke. The drawbar is attached to the towing vehicle. A pair of connecting bars is attached to the yoke and to the vehicle being towed. A lock assembly is connected between the yoke and the to drawbar. The lock assembly is adapted to move from a first position in which the drawbar is free a to rotate and a second position in which the drawbar is retained to the yoke.

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A towbar for a vehicle. The towbar includes a yoke and a drawbar rotatably connected to the yoke. The drawbar is attached to the towing vehicle. A pair of connecting bars is attached to the yoke and to the vehicle being towed. A lock assembly is connected between the yoke and the to drawbar. The loc

A towbar for a vehicle. The towbar includes a yoke and a drawbar rotatably connected to the yoke. The drawbar is attached to the towing vehicle. A pair of connecting bars is attached to the yoke and to the vehicle being towed. A lock assembly is connected between the yoke and the to drawbar. The lock assembly is adapted to move from a first position in which the drawbar is free a to rotate and a second position in which the drawbar is retained to the yoke. ing linkage operable to act upon the front shaft crank, the front shaft crank rotating the shaft, the rear shaft crank acting upon the rear steering linkage, the rear steering linkage operable to effect a steering alignment of the rear wheels complementary to the steering alignment of the front wheels. 2. The wagon of claim 1, wherein the front axle is pivotally attached to the frame to permit angular movement of the front axle in response to uneven terrain. 3. The wagon of claim 2, wherein the front axles is pivotally attached to the frame by a horizontal pin means at the midpoint of the axle. 4. The wagon of claim 3, wherein the angular movement of the front axle is between 0 and 30 degrees with respect to horizontal. 5. The wagon of claim 3, wherein the angular movement of the front axle is between 0 and 15 degrees with respect to horizontal. 6. The wagon of claim 1, wherein the shaft is journaled to the underside of the frame. 7. The wagon of claim 1, wherein each shaft crank is mounted at an extremity of the shaft. 8. The wagon of claim 1, wherein the steering alignment of the rear wheels is in the opposite direction to the steering alignment of the front wheels. 9. The wagon of claim 8, wherein the front and rear shaft cranks are perpendicular to the shaft. 10. The wagon of claim 9, wherein the front and rear shaft cranks are vertical when the steering alignment is straight. 11. The wagon of claim 1, wherein each wheel comprises a vertical hinge member for pivotally attaching the wheel to its respective axle and a horizontal spindle extending outwardly from the hinge member for rotationally mounting the wheel. 12. The wagon of claim 11, wherein the front and rear steering linkages comprise a wheel crank attached to each hinge member and a rod member pivotally attached to each wheel crank, each rod member pivotally attached to a front or rear shaft crank, respectively. 13. The wagon of claim 1, wherein the wagon comprises a tongue pivotally attached to the frame and connected to at least one of the front wheels, pivoting of the tongue causing a change in the steering alignment of the front wheels. 14. An agricultural wagon comprising: a) a frame; b) a front axle pivotally attached to the frame to permit angular movement of the front axle in response to uneven terrain and a rear axle fixedly attached to the frame, each axle having two ends; c) front wheels pivotally attached to each end of the front axle and rear wheels pivotally attached to each end of the rear axle, the front wheels having a steering alignment and the rear wheels having a steering alignment complementary thereto; d) a front steering linkage operably connected to the front wheels and a rear steering linkage operably connected to the rear wheels; and, e) a transmission linkage operably interconnecting the front and rear steering linkages for translating the steering alignment of the front wheels to the rear wheels. 15. The wagon of claim 14, wherein the front axle is pivotally attached to the frame by a horizontal pin means at the midpoint of the axle. 16. The wagon of claim 15, wherein the angular movement of the front axle between 0 and 30 degrees,with respect to horizontal. 17. The wagon of claim 15, wherein the angular movement of the front axle is between 0 and 15 degrees with respect to horizontal. 18. The wagon of claim 14, wherein the transmission linkage comprises a rotatable shaft longitudinally aligned with the frame, a front shaft crank, and a rear shaft crank, each shaft crank rigidly attached to the shaft, the front shaft crank pivotally attached to the front steering linkage and the rear shaft crank pivotally attached to the rear steering linkage. 19. The wagon of claim 18, wherein the front steering linkage is operable to act upon the front shaft crank, the front shaft crank rotating the shaft, the rear shaft crank acting upon the rear steering linkage, the rear steering linkage operable to effect a steering alignment of the rear