Combined stop and holder mechanism

Claim 1

COMBINED STOP AND HOLDER MECHANISM INCLUDING A FIRST PORTION AND A SECOND PORTION, ONE OF SAID PORTIONS BEING ADAPTED TO BE CONNECTED TO A SWINGABLY MOUNTED MEANS, THE OTHER OF SAID PORTIONS BEING ADAPTED TO BE CONNECTED TO A REACTION MEANS, SAID FIRST PORTION INCLUDING A PROJECTION, SAID SECOND PORTION DEFINING A RECESS FOR RECEIVING SAID PROJECTION, HOLDING MEANS SUPPORTED BY SAID SECOND PORTION AND EXTENDING INTO SAID RECESS, SAID HOLDING MEANS BEING FORMED OF RELATIVELY RIGID RESILIENT MATERIAL AND COMPRISING A SUBSTANTIALLY FLAT DISC-LIKE MEANS THE INNER AREA OF WHICH DEFINES A PLURALITY OF SPACED PORTIONS THE INNER SURFACES OF WHICH ARE SPACED TO PROVIDE A CENTRAL HOLE OF SLIGHTLY SMALLER DIMENSION THAN THE OUTER DIMENSION OF SAID PROJECTION WHEREBY SAID HOLDING MEANS IS ADAPTED TO FLEX IN ONE DIRECTION FOR SNUGLY RECEIVING AND HOLDING SAID PROJECTION, RETAINER MEANS SUPPORTED BY SAID SECOND PORTION AND HAVING A HOLE FORMED THERETHROUGH OF GREATER DIMENSION THAN THE HOLE DEFINED BY SAID INNER SURFACES OF THE HOLDING MEANS, SAID RETAINER MEANS ENGAGING SAID HOLDING MEANS TO RESIST FLEXING OF SAID HOLDING MEANS IN AN OPPOSITE DIRECTION TO RELEASE SAID PROJECTION WHEREBY MORE FORCE IS REQUIRED TO RELEASE THE PROJECTION FROM THE HOLDING MEANS THAN IS REQUIRED TO INSERT THE PROJECTION THROUGH THE HOLE IN THE HOLDING MEANS WHEN THE PROJECTION IS MOVED INTO HOLDING POSITION.