Wing lift increasing device

Claim 1

IN A SLOTTED FLAP STRUCTURE ON A WING, A FLAP MEMBER CONSTITUTING A PART OF THE TRAILING EDGE OF A FIXED PORTION OF THE WING, SAID FLAP MEMBER BEING MOUNTED FOR DEFLECTION IN RELATION TO THE FIXED WING PORTION ABOUT A FIXED AXIS EXTENDING WITHIN THE CONTOUR OF ITS TRAILING EDGE, AND BEING SPACED FROM SAID FIXED WING PORTION SO AS TO DEFINE AN AIRFLOW SLOT THEREBETWEEN, MEANS OPERATIVE TO EFFECT SUCH DEFLECTION OF THE FLAP MEMBER, A CLOSURE MEMBER FOR THE SLOT WHICH IS PIVOTALLY MOUNTED ABOUT A FIXED AXIS EXTENDING WITHIN SAID CONTOUR OF THE TRAILING EDGE SO AS TO LIE SUBSTANTIALLY ENTIRELY WITHIN THE UPPER END PORTION OF THE SLOT WHEN THE FLAP MEMBER IS DISPOSED IN ITS UNDEFLECTED POSITION IN RELATION TO THE FIXED WING PORTION, A PAIR OF LINKS PIVOTALLY INTERCONNECTING THE FLAP AND SLOT CLOSURE MEMBERS SO AS TO CAUSE THE LATTER TO BE PIVOTALLY RESPONSIVE TO THE DEFLECTION OF THE FORMER, SAID LINKS BEING ARTICULATED WITH RESPECT TO ONE ANOTHER ABOUT A FLOATING PIVOT, AND CAM MEANS INTERCONNECTING ONE OF THE LINKS WITH THE FIXED WING PORTION SO THAT THE RESPONSE OF THE CLOSURE MEMBER IS DELAYED TEMPORARILY UNTIL THE FLAP MEMBER REACHES A PREDETERMINED PARTIAL DEFLECTION.