Abstract: Apparatus and method for providing a safety barrier proximate to a hazardous region such as open support truss work of an escalator, comprising an extendable barrier member such as a chainmail panel, slidable on at least one support element securable to a support framework proximate to the hazardous region; wherein the extendable barrier member is movable between a closed and an open position allowing access to the hazardous region to allow for maintenance, and a closed position in which the barrier member provides a barrier over an opening of the support framework.

Abstract: Disclosed herein is a folding security window, in which an end of the security window is mounted to a window sill, the other end of the security window is connected to a window, a height-adjustable movable part is mounted to a vertical pole of the security window, a connecting means for connecting or disconnecting the security window to or from the window is provided, and the folded security window is not exposed to the outside. When the window is opened or closed, the security window is unfolded or folded, so that the security window does not spoil the appearance of the city. The movable parts mounted to upper and lower ends of the vertical pole enhance the adaptability and movability of the security window. The security window efficiently performs its original function without hindering ventilation, views, or light admittance.

Abstract: An expandable gate is described which includes a top horizontal guide rod, a bottom horizontal guide rod and vertical bar members extending from the top guide rod to the bottom guide rod. Each of the bar members has a top guide rod slot and a bottom guide bar slot and the top guide rod extends through each of the top guide rod slots and the bottom guide rod extends through each of the bottom guide rod slots. The vertical bar members may slide horizontally on guide rod members between an open expanded position where the bars are spaced further apart from one another and a closed collapsed position where the bars are closer together. The bar members each have spring connection holes at spaced locations between said top guide rod slot and said bottom guide rod slot. Elongated flexible tension bar springs are provided which lie flat when no forces are applied to the springs. Each of the bar spring have a central opening and have an elongated upper end opening and an elongated lower end opening.

Abstract: The present invention relates to a modular upright for building structures and a sliding safety grille which can be obtained by assembling these uprights. In a preferred embodiment, the modular upright (10) comprises a pair of anti-cutting reinforcing elements (1) which are lined by U-shaped modular elements (3) alternating with joining elements (2) and fastened together by at least one anti-pulling element (6) sliding vertically between two joining elements (2), in the space between the surface of the reinforcing elements (1) and the U-shaped modular elements (3).

Abstract: A vertically sliding adjustable office panel system that allows each panel to change height individually or in unison by virture of a panel within a panel sliding assembly. The panels are connected side by side to form office cubicles. The space dividing system adjusts vertically by inserting or removing connectors. This system allows a closed office cubicle system to become a partially or completely open workstation by raising or lowering any or all of the panels.

Abstract: A guide track for the bottom ends of the pickets of a folding door or the like comprises a galvanized steel elongated channel member having upwardly diverging sidewalls extending from a basewall, and a securing flange inclined downwardly and outwardly from the top of each sidewall. The free edge of each sidewall is lipped and lies substantially in the plane of the basewall, the lips extending outwardly and upwardly from the securing flanges. The guide track is disposed in a recess in the floor with the concrete or like flooring material surrounding the securing flanges and lips, filling the space between each securing flange and the respective sidewall to support the sidewall, and encasing the lips to prevent dislodgement of the guide track.

Abstract: Apparatus for covering relatively wider building structure expansion voids which includes a cover panel, base member extrusions for opposite side support and a lazy tong centering assembly for both supportive attachment to the cover panel and maintaining proper alignment and relative positioning to said void in tolerance of orthogonal relative displacements between adjacent structures.

Abstract: A furniture is provided of a door formed by a series of uniformly sized panels which are movable from a closed position, in which they are coplanar one with another, to an open position, in which they are parallel and folded on one side of the furniture itself. The panels are connected together by means of a parallelogram linkage system which allows the panels to be moved from the closed position to the open position by means of a single control. The panels slide in an upper guide and a lower guide of the furniture and fold onto the left hand side of the furniture, allowing full access to the furniture itself. The parallelogram system comprises two sets of rods which are substantially identical and arranged between an upper side of the panels and the upper guide of the furniture and between a lower side of the panels and the lower guide, respectively.

Abstract: A security screen is provided, adapted to be applied inside windows, doors or the like, to be kept hidden from view when not in use, and which is of the type that has vertical bars that are connected by angular links, and with the screens generally being provided in pairs, for latching and locking at about the center of a window or door with respect to which security is desired. Particularly unique adjustability and versatility features are embodied in the screen, and security fasteners are used to fasten components together.