Abstract: A shutter-type window gate device has a hinged shutter panel defining a vertical guide at its unhinged side for guiding a vertical slidable bolt. The vertical slidable bolt is adapted to engage latch elements on the frame of the device in a locked upper position of the bolt. The vertical slidable bolt has a horizontal latching projection to adapted to engage the top of a horizontal resiliently biased bolt, in the locked upper position of the slidable bolt, thereby holding the vertical slidable bolt in its locked position. In the lower, unlocked, position of the vertical slidable bolt, its latching projection is aligned with the resiliently horizontally biased bolt, to enable free vertical movement of the slidable bolt by an operator.

Abstract: A grill-type window gate apparatus includes a frame which is mounted in a window opening and a grillwork panel which is movably mounted on the frame. A panel lock assembly is mounted on the grillwork panel and is capable of locking the grillwork panel to the frame when the grillwork panel is in a closed position. A window lock assembly is mounted on the frame and engages the grillwork panel when the same is in the closed position thereby locking a window assembly which is mounted in the window opening.