Trailer jack

Claim 1

IN COMBINATION WITH A WHEELED VEHICLE HAVING A BODY AND HAVING SPRINGS WHEREBY THE BODY NORMALLY IS SUPPORTED ON ITS WHEELS, THE COMBINATION OF A JACK ADDITIONALLY SUPPORTING THE BODY DIRECTLY ON THE GROUND, TO PROVIDE A MORE STEADY SUPPORT THEREFOR, COMPRISING A TOGGLE ARRANGEMENT INCLUDING A FIRST LEVER PIVOTALLY CONNECTED AT ONE END TO THE BODY, REARWARDLY THEREOF, FOR ROTATIVE ADJUSTMENT ABOUT A TRANSVERSE AXIS, AND A SECOND LEVER HAVING ONE OF ITS ENDS PIVOTALLY CONNECTED TO THE FIRST LEVER, REARWARDLY THEREOF, IN SPACED APART RELATION TO SAID FIRST MENTIONED PIVOTAL CONNECTION, AND HAVING EXTENSIBLE MEANS EXTENDING BEYOND THE END THEREOF OPPOSITE SAID ONE OF ITS ENDS FOR FRICTIONAL AND PIVOTAL ENGAGEMENT WITH THE GROUND, HANDLE MEANS ON THE END OF THE FIRST LEVER OPPOSITE SAID FIRST MENTIONED PIVOTAL CONNECTION WHEREBY THE RESPECTIVE LEVERS ARE MOVABLE ABOUT SAID PIVOTAL CONNECTIONS FROM AN INOPERATIVE POSITION, IN WHICH THE LEVERS ARE PARTLY SUSPENDED FROM THE BODY, TO AN OPERATIVE POSITION IN WHICH THE LEVERS ARE SUSTANTAILLY ALIGNED AND EXTEND DOWNWARDLY FROM THE BODY, TO THEREBY ADDITIONALLY SUPPORT THE BODY DIRECTLY ON THE GROUND, AND MUTUALLY ENGAGING MEANS ON THE RESPECTIVE LEVERS WHEREBY ROTATIVE ADJUSTMENT OF THE FIRST LEVER RELATIVE TO THE SECOND LEVER, ABOUT SAID LAST MENTIONED PIVOTAL CONNECTION, IS LIMITED IN ONE DIRECTION ONLY, THE ARRANGEMENT BEING SUCH THAT THE FIRST LEVER IS BIASED ROTATIVELY ABOUT SAID LAST MENTIONED PIVOTAL CONNECTION, IN THE OPERATIVE POSITION OF THE LEVERS, BY THE WEIGHT OF THE BODY, WHEREBY THE LOWER END OF THE FIRST LEVER IS ADVANCED ROTATIVELY IN THE DIRECTION OF THE SECOND LEVER, TO THEREBY PREVENT ROTATIVE DISPLACEMENT OF THE LEVERS RELATIVE TO EACH OTHER.