Self-loading vehicle

Claim 1

A FRONT LOADING VEHICLE OF THE TYPE DESCRIBED, COMPRISING A VEHICLE CHASSIS HAVING AN OPERATOR''S CAB MOUNTED AT THE FRONT OF THE CHASSIS AND HAVING A BODY MOUNTED ON THE CHASSIS BEHIND THE CAB, SAID BODY HAVING AN ACCESS OPENING AT THE TOP, A LOADING MECHANISM INCLUDING A PAIR OF BOOMS, A PAIR OF LIFTING ARMS, AND LOAD ENGAGING MEANS, EACH BOOM BEING PIVOTALLY MOUNTED AT ONE END OF SAID VEHICLE ADJACENT THE TOP-REAR OF SAID CAB FOR MOVEMENT IN A SUBSTANTIALLY VERTICAL PLANE AND HAVING ONE OF SAID LIFTING ARMS PIVOTALLY SUSPENDED AT ONE END THEREOF FROM THE OTHER BOOM END, SAID LOAD ENGAGING MEANS BEING SUPPORTED UPON SAID LIFTING ARMS, MEANS FOR MOVING SAID BOOMS FROM A LOWERED POSITION IN WHICH SAID BOOMS EXTEND FORWARDLY AND SAID LIFTING ARMS EXTEND DOWNWARDLY ADJACENT THE FRONT OF SAID CAB, AND A RAISED POSITION IN WHICH SAID BOOMS EXTEND UPWARDLY AND SAID LIFTING ARMS EXTEND DOWNWARDLY ADJACENT SAID BODY ACCESS OPENING, AND MEANS POSITIVELY TURNING SAID LIFTING ARMS RELATIVE TO SAID BOOMS AS SAID BOOMS ARE MOVED, TO ENSURE PREDETERMINED ORIENTATION OF SAID ARMS.