Swimming pool safety enclosure and cover

Claim 1

A SWIMMING POOL SAFETY ENCLOSURE AND COVER MEANS COMPRISING A COVER SECTION ADAPTED WHEN UPRIGHT TO FORM AN INTEGRAL PART OF A FENCE SURROUNDING SAID POOL AND WHEN LOWERED TO COVER AT LEAST A PORTION OF THE POOL, A GENERALLY L-SHAPED CARRIAGE SECURED TO AND CARRYING THE COVER SECTION INCLUDING AN ARM WHICH IS SUBSTANTIALLY VERTICAL AND A SECOND ARM WHICH IS SUBSTANTIALLY HORIZONTAL WHEN THE COVER SECTION IS UPRIGHT, BELOW GROUND WELL MEANS ADJACENT ONE SIDE OF THE POOL RECEIVING THE SECOND ARM, A TRACK MOUNTED WITHIN THE WELL MEANS INCLUDING A HORIZONTAL PORTION AND A DEPENDING INCLINED PORTION, ROLLER MEANS ON THE SECOND ARM OF THE CARRIAGE ENGAGING THE TRACK, A SUBSTANTIALLY HORIZONTAL ENDLESS FLEXIBLE DRIVE ELEMENT ATTACHED TO THE SECOND ARM FOR PROPELLING THE CARRIAGE IN OPPOSITE DIRECTIONS UPON THE TRACK, POWEROPERATED MEANS CONNECTED WITH SAID FLEXIBLE DRIVE ELEMENT TO OPERATE THE SAME IN OPPOSITE DIRECTIONS, AND A ROLLER DIVERTER ELEMENT PIVOTED TO THE TRACK ADJACENT THE JUNCTURE OF THE HORIZONTAL AND INCLINED TRACK PORTIONS AND FRICTIONALLY ENGAGING THE TRACK AND ADAPTED TO REMAIN BY FRICTION IN EITHER OF TWO ADJUSTED POSITIONS, SAID ROLLER MEANS ENGAGEABLE WITH SAID DIVERTER ELEMENT DURING MOVEMENT OF THE CARRIAGE IN ONE DIRECTION FOR CAUSING THE ROLLER MEANS TO ENTER THE INCLINED TRACK PORTION AND SAID ROLLER MEANS AGAIN ENGAGING THE DIVERTER ELEMENT DURING REVERSE MOVEMENT OF THE CARRIAGE TO RESET THE DIVERTER ELEMENT TO AN ORIGINAL POSITION THEREOF, SAID COVER SECTION SWINGING DOWNWARDLY INTO COVERING RELATION WITH THE POOL AND BEING SUBSTANTIALLY HORIZONTAL WHEN THE ROLLER MEANS IS NEAR THE BOTTOM OF THE INCLINED TRACK PORTION.