Abstract: In a steering arrangement in which steering movement is transmitted by a pinion to a rack on a slide mounted in a transverse frame member on a trailer or implement, and from this slide it is transmitted to steerable wheels by appropriate linkage, the steering movement is transmitted from the slide to the steerable wheels by means of a pinion cooperating with a further rack on the slide.Also described is an adaptor for obtaining steering movement from a tractor drawbar by means of a collar for one jaw bar so as to allow as towing movement to be attached to the drawbar while an arm of the collar has a device for attachment of a steering member.

Abstract: A steering linkage for a wheeled trailer vehicle or implement comprising a frame, in which a bar is slidably mounted in a transverse frame member, the said bar having a rack formed thereon and in mesh with a pinion rotatble by a steering, or link, rod to impart sliding motion to the bar in response to movement of the steering rod, the bar being linked to steerable wheels of the vehicle or implement.