Abstract: A truck-train system that provides for the mounting and dismounting of a truck-trailer on/from a railway dolly at any stretch of train rails which is paved or gravelled level to the height of the rail head, and employing a moment arm reaction locking mechanism that automatically centers and engages the truck-trailer thereby locking it into place. The dolly includes a steering rod assembly that permits it to steer into curves in either direction of operation. Also included on the dolly, is a truck assembly that utilizes a floating pedestal. The moment arm reaction locking mechanism coupled with the steering rod assembly and the floating pedestal affords greater lateral stability and greatly increased operating speeds of the truck-train system.

Abstract: A truck-train system uses a first ("A") railway dolly or bogie to support the front or fifth-wheel hitch end of roadable truck-trailer. It uses a second ("B") railway dolly to support the rear or roadable wheel end of the same truck-trailer. The first ("A") and second ("B") railway dollies are connected to each other by a longitudinal support member having a telescoping central sill. The central sill is adapted to be detachably connected to the first ("A") railway dolly. The longitudinal support member is connected to the second ("B") railway dolly and also supports a raised platform having a deployable ramp for receiving the wheels of a roadable truck-trailer. The telescoping central sill and longitudinal support member can be locked in any fixed position to take up the train draw-bar tension and to provide for truck-trailers of various lengths.

Abstract: A truck-train system uses a railway dolly or bogie to support the front end of one truck-trailer and the rear end of another truck-trailer. A pair of truck-trailer support members are pivotally connected to the railway dolly. They are provided with a fixed incline ramp to raise and guide the truck-trailer onto the respective support member. The railway dolly is provided with a standard railway compressed air braking system with an air hose retrieving device to store the air hose. The railway dolly is also provided with standard railway couplers at each end. These couplers are adapted to retract or vertically rotate to a position below the surface of the incline planes.