Abstract: A window or a door with a panel (1) mounted on a fixed frame (2) on or near an upright boundary edge by hinge fittings (5, 6). To relieve the hinge fittings (5, 6) of the vertical component of the force of weight or load of the panel (3), a brace (11) is provided, engaging with the panel (3) on the one hand in the area of the hinge fittings (5, 6) and on the other hand, anchored to the fixed frame (2) against the force of weight or direction of load of the panel (3). The brace is provided above, but adjacent to, a lower corner hinge.

Abstract: Hardware for the closure of a door or window which is constructionally simple and functionally reliable, permitting movement of the closure out of the frame to a parallel position and allowing horizontal shifting in this position. Lower supporting arms are pivotally mounted on the closure and two traveling carriages are associated with the supporting arms and with an associated bearing block at the side of the closure. The carriages are designed in mirror-image relationship, so that the carriages are movable in opposite directions by means of a differential coupling gear.

Abstract: Hardware for a door or window, in which the closure can be moved out of the opening in the stationary frame to another position parallel to the said opening and then moved horizontally to a position that is non-coextensive with the opening. Upper and lower swing arms are provided, each connecting the closure to a traveling carriage. A releasable locking device is provided to lock the closure in the outer position, the device having a supporting lever connecting the swing arm to the carriage. This lever is brought into working position during the movement of the closure by means of a control lug with a thrust abutment located on the frame. The supporting lever consists of a bell crank pivotally mounted on the carriage, which crank carries the control lug at the end of one arm directed toward the stationary frame. The other arm, extending toward the swing arm, is pivotally connected to a connecting rod which is also swingably connected to the swing arm.