Abstract: Versatile four-wheel towable utility carts, systems, devices and methods for transporting loads for agricultural applications, landscape applications, and the like. The carts can be towed by small and large vehicles, tractors, as well as by tractors, all-terrain vehicles (ATVs), golf carts, and the like. The carts can have an X frame with a steerable front end where the front wheels can be steered by the tow bar. Upwardly extending posts on the frame can have C channel ends that can allow for beams, such as wooden boards to be horizontally supported. The user can add a wood deck platform across the horizontal beams to support various heavy loads.

Abstract: The present invention relates to a coupling apparatus for the pivoted coupling of a vehicle having two vehicle sections, with coupling elements which are arranged to pivot towards each other, and which can be permanently coupled to a vehicle section. A brake arrangement operates between the coupling elements and forms an adjustable frictional grip between the coupling elements, which blocks the ability of the vehicle sections to pivot toward each other. In addition, the brake apparatus includes a hydraulic cylinder unit which operates on multiple radially acting brake elements.