A variable width gate adapted to be manipulated to secure the gate within the boundary of an opening, the gate comprising two gate members mounted for sliding movement with respect to each other and each having a lever associated therewith and a releasable locking member for locking the respective levers with respect to relative motion therebetween.

A torsion spring counter balancing mechanism for a stacking panel shutter door includes one or more torsion springs one end of the or each torsion spring is fixable to a drive transmission shaft of the stacking panel shutter door, the drive transmission shaft being adapted to raise and lower the or each shutter of the stacking panel shutter door; and the other end of the or each torsion spring is fixable to a separate rotatable member of the stacking panel shutter door; whereby the mechanism is provided with means adapted to enable both the drive transmission shaft and the rotatable member to rotate, during opening and closing of the stacking panel shutter door, in such a manner as to cause respective ends of the or each torsion spring to travel at different speeds during the opening and closing sequence, which permits to keep the same size motor when panel numbers are varied.

An automatic auto-sensing flood protection roller shutter with auto-locating reinforced column includes a door plate composed of a plurality of door panels, at least one reinforced column automatically movable by a motor to a reinforcing position behind the door plate when the door plate is lowered upon sensing a flood, and a bolt and bolt driving device for securing the at least one reinforced column in the reinforcing position.

In example implementations, the end cap of a vertical panel door stacking system is coupled to a panel. The end cap includes a body portion, a cam lever to rotate around an axis to generate a lift force to lift and separate an adjacent panel of a plurality of panels of the vertical panel door stacking system, a first track wheel, a second track wheel, and a third track wheel.

An overhead door having a plurality of unconnected panels. Each panel has a top and bottom edge interlocking retention geometry and end caps. The end caps engage dual track guide assemblies to completely separate the panels as the door is raised.

THIS invention relates to a slat for a blind and a blind formed from such slats. More specifically, the invention relates to a customisable rigid slat, or blind made up of a plurality of such customisable rigid slats, that enables the blind to be fitted snugly within any window opening or doorway as a result of the locking adjustability of the width of such slats. The slat includes a pair of elongate slat panels movable relative to one another between retracted and extended conditions, such that the operatively width of the slat is greater in the extended condition than in the retracted condition. The slat further includes one or more fasteners, located at or near each of a pair of minor ends of the slat panels, for releasably fixing the pair of slat panels to one another in the retracted condition, the extended condition and/or any condition there between, thereby to operatively restrict relative movement between the slat panels in such condition.

Fire can spread extremely quickly within structures. To prevent this, fire doors or fire shutters are usually installed. However, security aspects of such doors or shutters are not renown. An attempt to alleviate this problem may be provided by an insulated fire panel shutter including a guide, adapted to receive a shutter and having one or more retractable members moveable between a retracted and extended position; a shutter, moveable between an open and closed position and formed from a plurality of panels each of which is moveable between a stowed and deployed position; their arrangement being such that as the guide receives the shutter during shutter closure, the panel arrangement alters from a stowed side by side relationship to a deployed stacked end to end relationship.

A rain shield for an exterior architectural window may include a a generally rectangular-planar shield member. The shield may further include a pair of opposing panel members each having a clasp for engaging a window frame. The clasps may be hingedly joined to opposing sides of the shield member. Optionally, the shield member may be divided into inner and outer shield panels slideably engaging each other to form a width-adjustable structure.

A weft of each rung of a ladder cord is formed of two weft threads, an intersecting portion is formed in the weft threads, a slat is inserted between the intersecting portion and one of warp threads of the ladder cord, and a lifting and lowering cord is inserted between the weft threads at a location between the intersecting portion and another of the warp threads.

The invention relates to a security grille system (1) for securing a passage at least partly. The security grille (2) is arranged to be brought from an extended state, in which the grille (2) can block the passage at least partly, into a retracted state, in which at least a part of the previously blocked part of the passage is unblocked. The security grille (2) comprises a multiplicity of bars (4), preferably substantially horizontally extending bars (4), connected by means of multiple elongated connecting elements for interconnecting respective bars (4). The security grille system (1) further comprises a chain connected to the grille (2), preferably a chain being flexible in only one dimension and/or being roller chain, and at least one chain limiting (28) member for at least locally limiting movement of the chain (19), e.g. in a direction in which it is flexible, such as to counteract that one or more links of the chain can be substantially moved away from a regular route along which the links move when the grille (2) is moved from its extended state to its retracted state or vice versa.