Awning window

Claim 1

AN AWNING WINDOW COMPRISING A FRAME INCLUDING A PAIR OF SPACED PARALLEL JAMBS AND DEFINING A WINDOW OPENING AN ACTUATOR BAR SUPPORTED ON ONE JAMB FOR SLIDABLE MOVEMENT, MEANS FOR MOVING SAID ACTUATOR BAR LONGITUDINALLY ALONG SAID JAMB, A SASH DIMENSIONED TO COSE SAID WINDOW OPENING, SAID SASH BEING PIVOTALLY CONNECTED ADJACENT ONE END THEREOF TO SAID ACTUATOR BAR, A BALANCE ARM, MEANS PIVOTALLY CONNECTING THE OPPOSITE ENDS OF SAID BALANCE ARM TO SAID SASH AND ONE OF SAID JAMBS, RESPECTIVELY, MEANS ASSOCIATED WITH SAID BALANCE ARM PROVIDING RECTILINEAR MOVEMENT OF SAID SASH RELATIVE TO SAID JAMBS WHEN SAID SASH IS POSITIONED IN CLOSED POSITION, COOPERATING CAM AND CAM FOLLOWER MEANS ON SAID SASH AND OF SAID JAMBS, SAID CAM HAVING A PORTION EXTENDING GENERALLY TRANSVERSELY OF THE JAMB AND INCLINED TOWARD THE PIVOTAL CONNECTION OF THE SASH TO THE ACTUATOR BAR, SAID CAM AND CAM FOLLOWER MEANS BEING ENGAGEABLE PRIOR TO CLOSING OF SAID SASH TO FORCE SAID SASH INTO THE WINDOW-CLOSING POSITION UPON MOVEMENT OF SAID ACTUATOR BAR IN ONE DIRECTION, AND LOCK MEANS ON ONE OF SAID JAMBS ENGAGEABLE WITH SAID SASH UPON RECTILINEAR MOVEMENT THEREOF IN THE CLOSED POSITION THROUGH FURTHER MOVEMENT OF SAID ACTUATOR BAR IN SAID ONE DIRECTION.