Suspension for automotive vehicles

Claim 1

IN A VEHICLE HAVING A FRAME WITH GROUND-ENGAGING WHEELS SUSPENDED THEREFROM, IMPROVED SUSPENSION STRUCTURE COMPRISING, TWO SUBSTANTIALLY RIGID ARMS SECURED TO OPPOSITE SIDES OF SAID FRAME THROUGH SUBSTANTIALLY ALIGNED PIVOTAL MOUNTS, SAID ARMS EXTENDING AWAY FROM THEIR MOUNTS IN A DIRECTION WHICH IS LONGITUDINAL OF SAID FRAME, SPRING MEANS INTERPOSED IN LOAD-TRANSMITTING RELATION BETWEEN SAID ARMS AND FRAME, A SUBSTANTIALLY RIGID WHEEL-CARRYING AXLE EXTENDING BETWEEN SAID ARMS, AN ATTACHMENT BETWEEN SAID AXLE AND EACH OF SAID ARMS, EACH OF SAID ATTACHMENTS INCLUDING MEANS ON SAID AXLE AND RESPECTIVE ARM WHICH ARE SECURED TOGETHER BY A PLURALITY OF PINS, SAID PINS AND AT LEAST ONE OF SAID MEANS BEING RELATIVELY MOVEABLE SO THAT SAID ATTACHMENTS CAN ARTICULATE, EACH OF SAID PINS BEING ELONGATE IN A DIRECTION TRANSVERSE TO THE LONGITUDINAL EXTEND OF SAID ARM AND HAVING A PREDETERMINED LENGTH, SAID PINS HAVING A PREDETERMINED SPACING FROM EACH OTHER, A BODY OF ELASTOMERIC MATERIAL TIGHTLY CONFINED BETWEEN EACH OF SAID PINS AND SAID ONE MEANS, SAID BODIES HAVING PREDETERMINED SIZE AND SHAPE AND PROVIDING YIELDABLE RESISTANCE TO ARTICULATION OF SAID ATTACHMENTS, SAID PREDETERMINED LENGTH, SPACING, AND SIZE AND SHAPE BEING SO INTERRELATED THAT SAID ARMS, PIVOTAL MOUNTS, AXLE, AND ATTACHMENTS ARE COOPERABLE OF THEMSELVES TO CONTROL TORSIONAL AND LATERAL FORCES THEREON INCIDENTAL TO OPERATION OF SAID VEHICLE.