Abstract: A traction jockey wheel having a drive mechanism of a pawl and ratchet wheel type with a braking interlock operable when a lever arm used for drive and steering of the traction wheels is lowered or raised past a select range of operating positions. The improvement can apply to either a single wheel or a dual wheel traction wheel assembly.

Abstract: A traction device for caravans or trailers which is manually operated and includes a ratchet interconnection between the ground engageable wheel or wheels and a lever arm that is used to provide both a drive and a steering of the ground engageable wheels. In the case of two wheels ground engaging both the drive coupling and the general support is such that the wheels are differentially driveable and rotatable one with respect to the other.

Abstract: Apparatus for assisting moving of trailed vehicles such as caravans including a jockey wheel supported by an extendible stem adapted to be secured to a forward draft frame of a vehicle, the apparatus being characterized according to this invention in that there is a lever arm secured relative to the jockey wheel in such a way as to control the rotational direction of the jockey wheel and an interengaging gear assembly including a drive shaft with the lever arm arranged so that rotation of the drive shaft will effect rotation of the jockey wheel about its central axis to effect the moving of the trailed vehicle when attached thereto.