Abstract: A bar assembly includes hollow interior and exterior tubes. Each tube has an inner and an outer end. The tubes are of a length less than the distance between spaced vertical window jamb side surfaces. The bar assembly includes a rigid stopper. A stopper is press fit into the outer end of each tube. The bar assembly includes pins. A pin extends outwardly from each stopper. The bar assembly includes a coil spring. The coil spring is provided within the exterior tube. The coil spring has a first end. The first end is in contact with the stopper of the exterior tube. The coil spring has a second end. The second end is in contact with the inner end of the interior tube. The coil spring is adapted to be compressed to a loading orientation. The coil spring is further adapted to be expanded to an operational orientation.