Rotating window

A window frame assembly comprising a rectangular fixed frame and a rectangular rotary frame mounted within the fixed frame;

• the rotary frame carrying a transparent sheet;
• the fixed frame including upper and lower fixed horizontal sections, and right and left fixed vertical sections each interconnecting the fixed horizontal sections;
• the rotary frame including upper and lower rotary horizontal sections and first and second rotary vertical sections each interconnecting the rotary horizontal sections;
• the fixed horizontal sections and the fixed vertical sections together forming an outer peripheral edge surface;
• the rotary horizontal sections and the rotary vertical sections together forming an inner peripheral edge surface facing the outer peripheral edge surface;
• the upper fixed horizontal section being connected to the upper rotary horizontal section by an upper bearing;
• the lower fixed horizontal section being connected to the lower rotary horizontal section by a lower bearing disposed beneath and in alignment with the upper bearing, wherein the upper and lower bearings together define a vertical axis of rotation for the rotary frame;
• the axis of rotation disposed at a horizontal center of the rotary frame, wherein the rotary frame is rotatable out of a closed state relative to the fixed frame to an open state within a substantially 360° range of rotation;
• and a locking mechanism releasably locking the fixed frame to the stationary frame to prevent rotation of the rotary frame;
• the locking mechanism being manually releasable.