Transporter for earth mover

Claim 1

IN AN ATTACHMENT FOR REDUCING THE AXLE LOADING OF A TWO-AXLE VEHICLE WHICH INCLUDES A TRACTOR AND A TRAILER, THE VEHICLE INCLUDING MEANS CONNECTING THE FORWARD END OF THE TRAILER TO THE REARWARD END OF THE TRACTOR, THE TRACTOR AND THE TRAILER HAVING ADJACENT THEIR RESPECTIVE REARWARD ENDS TRACTOR AND TRAILER AXLES EACH PROVIDED WITH GROUND-ENGAGING WHEELS, SAID ATTACHMENT INCLUDING: A SEALED, SELF-CONTAINED, TELESCOPING PNEUMATIC STRUT COMPRISING A CYLINDER MEMBER HAVING A CLOSED END AND A PISTON MEMBER WITHIN SAID CYLINDER MEMBER, SAID CYLINDER AND PISTON MEMBERS BEING RELATIVELY RECIPROCABLE ALONG THE COMMON AXIS THEREOF AND BEING RELATIVELY ROTATABLE ABOUT SAID AXIS; MOUNTING MEANS FOR RIGIDLY CONNECTING ONE OF SAID MEMBERS TO THE TRACTOR ADJACENT THE FORWARD END OF THE TRACTOR AND FORWARDLY OF THE TRACTOR AXLE WITH SAID MEMBERS IN AN UPRIGHT POSITION; AN AUXILIARY AXLE CARRIED BY THE OTHER OF SAID MEMBERS AND PROVIDED WITH AT LEAST ONE GROUND-ENGAGEABLE WHEEL; AND MEANS FOR PRESSURIZING SAID CYLINDER MEMBER WITH COMPRESSED GAS BETWEEN SAID CLOSED END THEREOF AND SAID PISTON MEMBER TO CAUSE SAID OTHER MEMBER TO MOVE DOWNWARDLY TO ENGAGE SAID WHEEL ON SAID AUXILIARY AXLE WITH THE GROUND, WHEREBY TO CAUSE SAID AUXILIARY AXLE TO CARRY PART OF THE WEIGHT OF THE VEHICLE, SAID PRESSURIZING MEANS INCLUDING GAS INLET MEANS COMMUNICATING WITH SAID CYLINDER MEMBER BETWEEN SAID CLOSED END THEREOF AND SAID PISTON MEMBER AND INCLUDING VALVE MEANS FOR OPENING AND CLOSING SAID GAS INLET MEANS.