Abstract: An automatic robot structure includes a fixed location support 10 which carries three locational arms 12, 14, 16, being hingedly connected to each other at their location of convergence to support a workhead 20, the driving motors 12a, 14a, and 16a each being independently operable to drive its respective arm in an axial direction, each of the arms being rigid in the sense that no part of the arm is hingedly connected to another part, so that the forces derived from a payload weight subject the arms primarily only to compression and or tension.

Abstract: A towing vehicle with a boom pivotal about a horizontal axis and a second axis perpendicularly thereto enabling the boom to be moved to a position over a disabled vehicle located along side the towing vehicle. A pair of power cylinders is attached to the boom and is operable to swing the boom with load attached to locate the load or disabled vehicle immediately behind the towing vehicle. An elongated support is movable downwardly against the ground behind the towing vehicle to provide stability as the load is lifted and swung from a position aside the towing vehicle to a rearward position.