Leg rest fixture and supplemental holding mechanism

Claim 1

IN A CHAIR STRUCTURE, THE COMBINATION OF A SEAT FRAME, A LEG REST, MEANS INCLUDING EXTENSIBLE LINKAGE MEANS SECURING SAID LEG REST TO SAID SEAT FRAME FOR MOVEMENT BETWEEN A RETRACTED POSITION AND A RAISED LEG-SUPPORTING POSITION, MEANS OPERATIVELY CONNECTED TO SAID EXTENSIBLE LINKAGE MEANS FOR MOVING SAID LEG REST INTO ITS RETRACTED OR RAISED LEG-SUPPORTING POSITIONS INCLUDING A ROTATABLE TRANSVERSE SHAFT ADAPTED TO BE MANUALLY ACTUATED, A FIRST LINK NON-ROTATABLY CONNECTED TO SAID SHAFT, A CURVED GENERALLY SICKLE SHAPED LINK HAVING ONE END PIVOTALLY CONNECTED TO SAID FIRST LINK ON ONE SIDE FORE AND AFT OF SAID SHAFT AND THE OPPOSITE END DISPOSED ON THE OTHER SIDE OF SAID SHAFT WHEN SAID LEG REST IS IN ITS RETRACTED POSITION, AND RESILIENT MEANS CONNECTED TO THE OPPOSITE END OF SAID CURYED LINK FOR MOVING SAID LEG REST OPERATING MEANS IN A DIRECTION TO CAUSE SAID EXTENSIBLE LINKAGE MEANS TO RESILIENTLY HOLD SAID LEG REST AGAINST SAID SEAT FRAME WHEN SAID LEG REST IS IN ITS RETRACTED POSITION.