Double-shell metal window and door system with the narrowest web widths for historic cast-iron windows / industrial, office and residential windows, doors with protective glazing

Description

[0001] Cast iron windows have been used in many industrial buildings of the last two centuries.

[0002] Very beautiful architectural objects from this period have still been preserved today.

[0003] Formerly used as storage or workshops, these spaces are now being converted to a new, heat-controlled use. Here, design demands meet what was previously technically impossible (example facade, page 3 / 3).

[0004] For this purpose, we developed a metal window and door system in various versions that meet all current thermal insulation regulations and can be fitted with modern insulating glass panes.

[0005] This also provides structural support for the window. This system relieves the load on historic buildings or new buildings by acting as a self-supporting element.

[0006] Since insulating glass panes can now be installed, appropriate glass for burglary protection, sound insulation, bulletproof glass or fire protection glazing can also be installed.

[0007] The windows, themselves with frames and bars, enable thermal separation and, if steel is used, they are fire-resistant.

[0008] Technical tests to obtain the relevant certification are still pending. Research:

[0009] Last year, we reviewed all the data sets on windows made available to us by the German Patent Office and found no patent in which our invention was even remotely described in another patent.

[0010] Document US 2,402,105 discloses a window frame with two shells made of bent steel. Explanations:

[0011] We have not yet published our invention or made it available to the media, exhibited it at any trade fair, or otherwise advertised or published it. Our patent is commercially applicable in architecture, metal construction, and glassmaking.

[0012] We agree to grant licenses. Technical description

[0013] Our double-leaf metal window and door system with narrow profile widths for historic cast-iron windows, industrial, office, and residential windows and doors with thermal, sound, fire, and burglar-resistant glazing essentially consists of a non-profiled, double-leaf system. Commercially available flat steel / metals are used for this, e.g., 35x8, 40x8, 50x8, 55x8, and others, as shown in the main drawing (elevation and section, sheet 1 / 3).

[0014] The outer and inner shells (windows with frames and bars) are welded, soldered, riveted, screwed or optionally cut from a plate using common technical processes.

[0015] The two flat window sides (sheet 2 / 3, detail of fixed glazing) are connected to a solid insulating material, preferably wood, as a thermal barrier but also for bracing, using screws on both sides. This creates a profile that resembles a T-beam and is therefore structurally stable.

[0016] The static insulation core, made of an insulating but solid polymer or a light metal, also as a profile (e.g. aluminum) or a specific type of wood, can support this effect depending on the choice.

[0017] Other soft insulation materials and / or simply air or soft fillings increase the insulating effect, but have an adverse effect on the statics.

[0018] A higher insulation performance is also achieved by screwing the static insulation core offset on both sides.

[0019] However, the thermal bridge created by screwing through is negligible. The two flat windows are now divided into a mounting side and a top-mounted side. The mounting side is the future exterior of the window and will accommodate the insulation cores and panes during installation. The top-mounted side is then screwed onto the corresponding mounting solution.

[0020] For this purpose, a stud welding process can be used on the mounting side, e.g. for a ABSt. Bolt 1 / 1 St. A2K M5x20 SW8.

[0021] A thread can also be cut directly into the mounting side [for a direct screw connection between the top side and the mounting side, e.g., on historic cast iron windows (grey cast iron)]. Or, a spacer bolt with an internal thread can be used, fixed to the mounting side with half the remaining thread for the counterscrew on the top side.

[0022] The insulating glass panes are placed between them and either cemented in a historical re-creation or, for example, glued in new buildings.

[0023] Countersunk screws can be used to connect the shells (see sheet 2 / 3), which are later filled and coated; thus, they disappear from view of the window sides and simultaneously serve as a possible inspection in case of damage.

[0024] Cap nuts can also be used as a design element in new buildings.

[0025] Window / door openings can also be achieved by means of an additional rebate in the core and by offset doubling on the frame (drawing detail opening sash, sheet 2 / 3).

[0026] Historic cast-iron windows can be reused as mounting sides or as add-on sides. This allows the historic structure to be protected, preserved, and further stabilized. The window reveals of existing buildings are now protected from moisture damage caused by condensation that previously formed on the window and its T-profiles, and heat loss is minimized to the state of the art (see example facade, page 3 / 3, windows shown in black).

Claims

1. Double-skin metal window and door system with narrow bridge widths, with intermediate static and insulating core and thermal protection, noise protection, fire protection and burglary protection glazing and combinations thereof suitable for use in existing buildings, e.g. restoration, reconstruction, refurbishment, and new construction, wherein the double-skin metal system has two flat window sides formed by metal shells, wherein the metal shells are connected to each other by means of a fixed insulating core for high structural stability, preferably made of wood, or a soft insulating core for increased insulation performance, preferably air, filling with various insulation materials, which are connected with each other by means of screws, glue, rivets, or similar fastening methods, using spacer elements for internal stabilization, so that the double-skin metal system exhibits high static stability with a slim appearance, similar to a historic cast-iron window, which also has a minimal depth, so that the double-skin metal system can accommodate insulating, armored, fire protection and noise protection glass and / or protective combinations in accordance with the state of the art while retaining the historical material thicknesses in the individual glazing bars, with the possibility of later inspection and repair, characterized in that one of the metal skins is formed by a historic cast iron or gray cast iron window, enabling its continued use in the double-skin metal system, whereby the existing structure, which is usually a protected historic building, is preserved by continuing to use the historic cast iron window as an installation or attachment side.