Limiter e.g. for aerator for windows, has mechanism for allowing fitting to be tilted into window frame case having holding pin and tongue with mechanism can turn through ninety degrees

摘要

The limiter has a mechanism for allowing a fitting to be tilted into a window frame case having a holding pin and tongue. The mechanism can turn through 90 degrees. A lock, stops the movement of the mechanism so that the ventilation angle of the window can be determined. The lock can be drilled in the window frame and hidden from view and the window mechanism is held in place by a grasp.