Abstract: A servo-control device for steering an articulated vehicle comprising four analog detectors (30, 31, 32, 33, 34) respectively connected to control amplifiers (30', 31', 32', 33') whose outputs are connected to the inputs (30", 31", 32", 33") of a multiplexer (40). The latter is connected to the input of a converter (41) which converts the analog signals of the detectors into digital signals transmitted to a digital calculator (42) powered by an energy source (43). The output of the calculator (42) is connected to a converter (44) whose output signal amplified by the amplifier (45) is directed to a servo-control device.

Abstract: A load carrying and tipping vehicle (11) adapted to be coupled to a power-operable vertically movable part (15) of a motor vehicle (13) such as a front end loader in which case the bucket of the front end loader constitutes the vertically movable part. The load carrying and tipping vehicle (11) has a load carrying portion (21) which is supported on two wheels (29) and which is tippable in a vertical plane parallel to the direction of travel of the vehicle (11). A coupling mechanism (41) is provided for detachably coupling one end (25) the load carrying portion to the bucket (15) of the front end loader whereby raising of the bucket (15) effects tipping of the load carrying portion (21). The coupling mechanism (41) provides a pivotal connection between the bucket (15) and the load carrying portion (21) about a first pivot axis (48) which is substantially horizontal and transverse to the direction of travel of the vehicle (11).

Abstract: A four-wheeled freight trailer adapted particularly to farm use has its front axle beam fixed with respect to the frame of the trailer, and has steerable wheels at the opposite ends of this beam. The tongue of the trailer is fixed with respect to the frame against rotation on a vertical axis. A crank arm on the front of the tongue engages an abutment on the hitch of a towing vehicle, so that turning the vehicle induces rotation of the crank arm which actuates a steering linkage connected to the front wheels of the trailer.

Abstract: A towable wheeled undercarriage for carrying and supporting heavy loads and more particularly a carriage for supporting a crane of heavy duty or high capacity type. The carriage or carrier has a plurality of front and rear wheeled units independently mounted on a structural frame extending longitudinally of the vehicle and with at least the front wheels thereof being steerable. A gooseneck extends forwardly from the carrier and a coupling means on the forward end thereof connects to the fifth wheel of a tractor or towing vehicle. The coupling includes cushion means to support variable loads imposed by the fifth wheel on the gooseneck during towing and a linkage assembly is provided which is controlled by the fifth wheel to steer the front steerable wheels.

Abstract: A steering system for use with a multiple vehicle train permits tracking without rails of one vehicle after another. This system is particularly useful for moving conveyor systems into and out of curved paths of room and pillar underground mine installations. The steering system features an elongated steering bar pivotally connected to each of adjacent vehicles at end portions of the bar permitting angular orientation of each vehicle in respect to the steering bar and other vehicles. Each end portion of the steering bar is linked to the near pair of vehicle wheels through wheel yoke pivot arms about king pin type pivots. Movement of the steering bar about its pivotal connection provides proportional turning of the wheels to effect steering and tracking of one vehicle following another in both forward and reverse directions.

Abstract: A train comprising a lead and a plurality of interconnected succeeding transport vehicles and having devices for actuating the steering gears of succeeding vehicles. Adjacent transport vehicles are interconnected through links, whereas each device for actuating the steering gear incorporates two shafts vertically mounted on the bodies of adjacent transport vehicles and connected to pulleys wound around with a flexible pulling member, and a bushing hingedly installed on each vertical shaft and rigidly associated with said link. The vertical shaft mounted on the preceding transport vehicle is kinematically associated with an independent drive remotely controlled from the lead transport vehicle, while the succeeding transport vehicle and the shaft of the steering gear thereof carry pulleys wound around in a crosswise manner with flexible pulling member.

Abstract: A steerable wheeled assembly for a vehicle such as a harvesting or windrowing machine of the type adapted to be drawn over crop rows in the ground is disclosed. The assembly includes rotatable vertical members and a horizontal axle member which are arranged in a "C" frame supportingly connected to the vehicle and which provides clearance under the axle. Ground engaging wheels rotate on stub axles which pivot in steering movement when the vertical members are rotated. Steering or pivot arms are mounted on each of the vertical members and are connected together by a tie rod. A fluid power actuated cylinder connected to one of the arms is used to pivot the arm and stear the vehicle.

Abstract: This vehicle includes a steering system, which is adaptable for use with self-propelled and trailer vehicles to provide a compact, low-profile carrier for both personnel and cargo, and is mounted to the vehicle to ensure a floor and fender system providing optimum carrying capacity. The steering system controls all four wheel units and includes an actuating member mounted to the vehicle body and actuating the wheel units by a swiveling system. The swiveling system incorporates an intermediate rotating mechanism mounted to the body adjacent each wheel unit and within the fender wells, and permits effective swiveling of the wheel units by swiveling system elements located below the floor system and within the fender wells.

Abstract: Relates to steering apparatus for trailers having pivoted wheels and towed by motor vehicles, the steering provision being a reversible electric motor carried by each such trailer. The power for the electric motor is derived from a battery or other source of electric power carried by the towing vehicle and the control of which is located in the towing vehicle and performed by the operator of the towing vehicle. An electric circuit is connected at one end to the battery in the towing vehicle and at the other end to the electric motor in the trailer. A three-position switch is incorporated in the circuit for controlling the operation of the motor and is preferably mounted on the steering column of the towing vehicle convenient to the operator.