Removable cargo box for trucks or trailers

Claim 1

A REMOVABLE BODY FOR A TRUCK OR TRAILER CHASSIS COMPRISING A RECTANGULAR BODY FRAME, FOUR JACKS, ONE LOCATED ADJACENT EACH CORNER OF THE FRAME, MECHANISM FOR EXTENDING THE JACKS TO RAISE THE REMOVABLE BODY OFF THE CHASSIS, MEANS ON THE FRAME FOR SUPPORTING AT LEAST THE TWO JACKS AT THE FORWARD END OF THE TRUCK WHEREBY THEY MAY BE MOVED INWARDLY RELATIVE TO THE SIDES OF THE BODY TO AN INOPERATIVE POSITION AND OUTWARDLY TO A BODY SUPPORTING POSITION WHICH PERMITS THE CHASSIS TO PASS BETWEEN THE JACKS, EACH SAID SUPPORTING MEANS COMPRISING A JACK SUPPORTING MEMBER TO WHICH THE JACK IS CONNECTED AT ITS UPPER END, A ROTATABLE SHAFT JOURNALLED IN THE BODY FRAME ON WHICH THE JACK SUPPORTING MEMBER IS MOUNTED, AND A SEGMENTAL BEARING FIXED TO THE UNDERSIDE OF THE BODY FRAME WHICH ENGAGES THE JACK SUPPORTING MEMBER IN ITS OUTER BODY SUPPORTING POSITION, THE UPPER ENGAGING SURFACE OF THE JACK SUPPORTING MEMBER BEING CONVEXLY CURVED AND THE LOWER ENGAGING SEGMENTAL SURFACE OF THE BEARING BEING CONCAVELY CURVED AROUND THE SAME CENTER OF CURVATURE.