Three wheel-axis suspension system

Claim 1

A TRAILER FRAME HAVING A CENTRAL, LONGITUDINAL AXIS; AND IN COMBINATION THEREWITH, A THREE WHEEL-AXIS SUSPENSION SYSTEM COMPRISING A PAIR OF INDEPENDENT SETS OF BELL CRANKS RESPECTIVELY DISPOSED ON OPPOSITE SIDES OF SAID LONGITUDINAL AXIS OF SAID FRAME, EACH SET COMPRISING FRONT, MEDIAL, AND REAR BELL CRANKS, AND EACH BELL CRANK COMPRISING A PIVOT AXLE, A WHEEL ARM, AND A CONTROL ARM, SAID WHEEL ARM AND SAID CONTROL ARM OF EACH BELL CRANK BEING DISPOSED IN 90* RELATIONSHIP WITH RESPECT TO EACH OTHER; A PLURALITY OF MEANS SECURED TO SAID FRAME AND ENGAGING SAID BELL CRANK PIVOT AXLES FOR JOURNALING SAID PIVOT AXLES TO SAID FRAME; SIX WHEEL AXLES RESPECTIVELY SECURED TO RESPECTIVE ONES OF SAID BELL CRANK WHEEL ARMS AT POINTS REMOVED FROM THEIR RESPECTIVE PIVOT AXLES; A PLURALITY OF WHEELS MOUNTED UPON SAID WHEEL AXLES; A PAIR OF TOGGLES; A PAIR A RIGID MEANS RESPECTIVELY INTERCOUPLING ONE END OF RESPECTIVE ONES OF SAID TOGGLES WITH THE CONTROL ARMS OF RESPECTIVE ONES OF SAID MEDIALLY DISPOSED BELL CRANKS; A FIRST PAIR OF ELONGATE TIE ROD MEANS EACH RESPECTIVELY INTERCOUPLING THE REMAINING ENDS OF SAID TOGGLES WITH THE CONTROL ARMS OF RESPECTIVE ONES OF SAID REAR BELL CRANKS; AND A SECOND PAIR OF ELONGATE TIE ROD MEANS EACH RESPECTIVELY INTERCOUPLING SAID CONTROL ARMS OF RESPECTIVE ONES OF SAID FRONT BELL CRANKS WITH RESPECTIVE ONES OF TOGGLES AT RESPECTIVE, MEDIAL PIVOT POINTS THEREOF, SAID BELL CRANKS, RIGID MEANS, TOGGLES, AND FIRST AND SECOND PAIRS OF ELONGATE TIE ROD MEANS BEING SO CONSTRUCTED AND ARRANGED WITH RESPECT TO EACH OTHER THAT THE WEIGHT OF SAID FRAME WHEN SUPPORTED BY SAID WHEELS EFFECTS A BALANCING OF FORCES EXERTED UPON SAID TOGGLES BY SAID RIGID MEANS AND SAID FIRST AND SECOND PAIRS OF TIE ROD MEANS TO HOLD SAID TOGGLES IN STATES OF EQUIPOISE, SAID SUSPENSION SYSTEM, EXCEPT FOR BELL CRANK JOURNALING TO SAID FRAME AT SAID PIVOT AXLES, BEING FREE FROM SAID FRAME, AND WHEREIN THE RATIO OF THE EFFECTIVE LENGTH OF SAID CONTROL ARM TO THE EFFECTIVE LENGTH OF SAID WHEEL ARM, ABOUT THE RESPECTIVE PIVOT AXLES, OF EACH OF THE MEDIAL AND REAR BELL CRANKS IS 1:1, AD THE RATIO OF THE EFFECTIVE LENGTH OF SAID CONTROL ARM TO THE EFFECTIVE LENGTH OF SAID WHEEL ARM, ABOUT THE RESPECTIVE PIVOT AXLES, OF EACH OF SAID FRONT BELL CRANKS IS 1:2, SAID MEDIAL PIVOT POINT OF EACH OF TOGGLES LYING MIDWAY BETWEEN THEIR END CONNECTIONS.