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Claim 1

A POWER OPERATED ADJUSTABLE WHEEL CHAIR COMPRISING A WHEEL FRAME, A PLURALITY OF GROUND ENGAGING WHEELS CARRIED BY SAID WHEEL FRAME, INCLUDING INDEPENDENTLY OPERATED MEANS FOR DRIVING ONE OF SAID WHEELS, A SUPERSTRUCTURE ON SAID FRAME, A SEAT BOTTOM, MEANS MOUNTING SAID SEAT BOTTOM ON SAID SUPERSTRUCTURE FOR FORWARD AND REARWARD MOVEMENT, A SEAT BACK HINGEDLY CONNECTED TO SAID SEAT BOTTOM AT ADJOINING EDGES FOR PIVOTAL MOVEMENT FROM A SUBSTANTIALLY RIGHT ANGLE RELATIONSHIP WHERE THE SEAT IS AT A REARWARD POSITION TO A SUBSTANTIALLY COPLANAR RELATIONSHIP WHERE THE SEAT IS AT A FORWARD POSITION, BACK SUPPORTING MEANS FOR SAID SEAT BACK WHICH IS RESPONSIVE TO THE FORWARD AND REARWARD MOVEMENT OF SAID SEAT BOTTOM TO LOWER AND RAISE SAID SEAT BACK RESPECTIVELY, SAID BACK SUPPORTING MEANS INCLUDING A PAIR OF BELL CRANK LEVERS PIVOTALLY MOUNTED ON SAID SUPERSTRUCTURE AT THE REAR AND AT OPPOSITE EDGES OF SAID SEAT BACK, SAID BELL CRANK LEVERS EACH INCLUDING A PAIR OF ARMS IN ANGULAR RELATIONSHIP TO ONE ANOTHER, BACK ENGAGING MEANS CARRIED BY ONE OF SAID ARMS ENGAGEABLE WITH THE REAR SIDE OF SAID SEAT BACK, ACTUATING MEANS INTERPOSED BETWEEN SAID SEAT BOTTOM AND EACH OF SAID OTHER ARMS, AND POWER OPERATED MEANS ON SAID SUPERSTRUCTURE FOR MOVING SAID SEAT BOTTOM FROM ITS REARWARD POSITION TO ITS FORWARD POSITION, THE FORWARD MOVEMENT OF SAID SEAT BOTTOM URGING SAID ACTUATING MEANS IN ONE DIRECTION TO SWING SAID BELL CRANK LEVERS ABOUT THEIR PIVOTS SO AS TO LOWER SAID SEAT BACK TOWARDS THE AFORESAID COPLANAR RELATIONSHIP WITH SAID SEAT BOTTOM, AND THE REARWARD MOVEMENT OF SAID SEAT BOTTOM URGING SAID ACTUATING MEANS IN THE OPPOSITE DIRECTION TO SWING SAID BELL CRANK LEVERS ABOUT THEIR PIVOTS SO AS TO RAISE SAID SEAT BACK TOWARDS THE AFORESAID RIGHT ANGLE RELATIONSHIP WITH SAID SEAT BOTTOM.