Window with sash capable of pivoting movement about two perpendicular axes

A window comprising:

• a. a frame including first, second, third and fourth elongated frame members extending about an opening in said frame;
• b. a sash including first, second, third, and fourth eleongated frame members;
• c. hinge means connecting said sash to said frame for swinging movement of said sash about a first pivot axis extending in a common direction with said first and third frame members toward and away from a closed position in which each sash member is contiguously juxtaposed in said opening to a corresponding frame member;
• d. bearing means connecting said sash to said frame for tilting movement of said sash about a second pivot axis transverse to said first axis and extending in a common direction with said second and fourth frame members toward and away from said closed position,
• 1. said members defining respective corners of said frame and of said sash, a first corner being defined by said first and second members, a second corner by said second and third members, a third corner by said third and fourth members, and a fourth corner by said fourth and first members,
• 2. said hinge means including a corner fitting assembly having respective movably engaged fitting elements on said frame and on said sash adjacent said first corners and also constituting elements of said bearing means, a bracket member having a portion pivotally secured to said frame adjacent said fourth corner of the frame, guide means securing another portion of said bracket member to said forth sash member for angular movement and for movement longitudinally of said fourth sash member, and arresting means on said sash for preventing said angular movement,
• 3. said bearing means further including pivotally engageable bearing elements on said frame and on said sash respectively adjacent said second corners, and releasable coupling means on said sash for holding said bearing elements engaged;
• e. locking means for locking said sash to said frame in said closed position and including at least one catch on said frame and at least one locking member movable on said sash toward and away from engagement with said catch in said closed position;
• f. a manually operable control member movably mounted on said sash;
• and
• g. motion transmitting means connecting said control member to said arresting means, said coupling means, and said at least one locking member,
• 1. said sash being formed with a circumferential, elongated, dove-tail groove,
• 2. said motion transmitting means including a plurality of bar elements received in said groove for movement longitudinally of respective sash members, and a corner coupling in one of said corners of said sash and connecting respective bar elements associated with the sash members defining said one corner, one of the connected bar elements being engaged by said control member,
• 3. said fitting element on said sash, said guide means, and said bearing element on said sash having respective mounting portions conformingly received in said groove and fixed to said sash,
• 4. one of said mounting portions bounding a passage extending therethrough longitudinally of said groove and movably receiving a longitudinal section of one of said bar elements.