Steering arrangement for selfpropelled cart

Claim 1

IN A WHEELED VEHICLE, THE COMBINATION OF: A FRAME; A SEAT PIVOTALLY MOUNTED ON SAID FRAME; A FIRST PAIR OF FRONT WHEELS MOUNTED IN SPACED RELATION AND SUPPORTING SAID FRAME WHEN IT IS BEING DRIVEN IN A STRAIGHT PATH, THE LONGITUDINALD CENTER PLANE OF SAID WHEELS BEING FIXED RELATIVE TO SAID FRAME AND EXTENDING PARALLEL TO THE LONGITUDINAL CENTRAL AXIS THEREOF; A SCOND PAIR OF SPACED WHEELS PIVOTALLY MOUNTED RELATIVE TO SAID FRAME AND MOUNTED FOR VERTICAL MOVEMENT WITH RESPECT THERETO, SAID SECOND PAIR OF WHEELS BEING POSITIONED BETWEEN SAID FIRST PAIR OF WHEELS AND BEING ADAPTED TO SUPPORT SAID FRAME DURING TURNING ONLY; AND MEANS INTERCONNECTING SAID SECOND PAIR OF WHEELS AND SAID SEAT FOR SIMULTANEOUSLY LOWERING AND TURNING SAID SECOND PAIR OF WHEELS UPON PIVOTAL MOVEMENT OF SAID SEAT, SAID MEANS ALSO INTERCONNECTING SAID FIRST PAIR OF WHEELS AND SAID SEAT FOR SIMULTANEOUSLY RAISING SAID FIRST PAIR OF WHEELS UPON PIVOTAL MOVEMENT OF SAID SEAT FROM ITS STRAIGHT-AHEAD POSITION, SAIF FIRST AND SECOND PAIRS OF WHEELS BEING RETURNED TO THEIR ORIGINAL POSITION BY MOVEMENT OF SAID SEAT BACK TO ITS STRAIGHT-AHEAD POSITION.