Vehicle suspensions

Claim 1

IN A SUSPENSION FOR CONNECTING A SET OF WHEELS TO THE SUSPENDED PART OF AN INDEPENDENT WHEEL VEHICLE, SAID SUSPENSION BEING ADAPTED TO DISASSOCIATE THE DAMPING OF THE VERTICAL OR PUMPING OSCILLATIONS FROM THE DAMPING OF THE ROLL OSCILLATIONS, A SYMMETRICAL SYSTEM CONNECTING THE WHEELS OF THE SET OF WHEELS TOGETHER AND TO SAID SUSPENDED PART, SAID SYSTEM COMPRISING, IN RESPECT OF EACH WHEEL, A CRANKED PIVOTAL LEVER HAVING TWO ARMS, A FIRST ONE OF THE ARMS BEING PIVOTALLY CONNECTED TO THE STUB AXLE OF THE WHEEL TO PIVOT ABOUT AN AXIS WHICH IS SUBSTANTIALLY HORIZONTAL AND EXTENDS SUBSTANTIALLY LONGITUDINALLY OF THE VEHICLE, THE CRANKED LEVER BEING PIVOTALLY CONNECTED SUBSTANTIALLY IN THE CORNER OF THE CRANKED PORTION OF THE LEVER TO SAID SUSPENDED PART BY A PIVOT PIN WHICH IS SUBSTANTIALLY HORIZONTAL AND EXTENDS SUBSTANTIALLY LONGITUDINALLY OF THE VEHICLE, THE SECOND ARM OF SAID ARMS HAVING A FREE END CONNECTING MEANS HAVING TWO END PORTIONS SPACED APART TRANSVERSELY OF SAID SUSPENDED PART, AS DAMPER AND PIVOTAL CONNECTIONS CONNECTING SAID TWO END PORTION OF THE CONNECTING MEANS RESPECTIVELY TO SAID FREE ENDS OF THE SECOND ARMS FO THE PIVOTAL LEVERS, THE DISTANCE BETWEEN SAID PIVOTAL CONNECTIONS OF THE CONNECTING MEANS BEING VARIABLE AND SAID DAMPER BEING OPERATIVELY CONNECTED TO SAID PIVOTAL CONNECTIONS OF THE CONNECTING MEANS TO DAMP ANY MOVEMENT OF SAID PIVOTAL CONNECTIONS TOWARDS AND AWAY FROM EACH OTHER, WHEREBY A SYMMETRICAL PUMPING OSCILLATION OF SAID SUSPENDED PART RELATIVE TO THE SET OF WHEELS IN THE VERTICAL PLANE OF SYMMETRY OF THE VEHICLE PRODUCES SYMMETRICAL PIVOTAL MOVEMENTS OF THE TWO CRANKED LEVERS IN OPPOSITE DIRECTIONS RELATIVE TO SAID SUSPENDED PART THE ENERGY OF WHICH IS ABSORBED BY SAID DAMPER OF THE CONNECTING MEANS, WHEREAS ROLL OF THE VEHICLE PRODUCEC OSCILLATIONS OF THE TWO CRANKED LEVERS IN THE SAME DIRECTION RELATIVE TO SAID SUSPENDED PART, THE LAST-MENTIONED OSCILLATIONS HAVING SUBSTANTIALLY NO ACTION ON THE DAMPER OF THE CONNECTING MEANS, WHICH LATTER MOVES BODILY RELATIVE TO SAID SUSPENDED PART SUBSTANTIALLY ALONG AN AXIS EXTENDING TRANSVERSELY OF THE VEHICLE.