GB2190414A

GB2190414A - Windows

Info

Publication number: GB2190414A
Application number: GB08601458A
Authority: GB
Inventors: Ronald Calvey
Original assignee: Individual
Current assignee: Individual
Priority date: 1986-01-22
Filing date: 1986-01-22
Publication date: 1987-11-18
Anticipated expiration: 2006-01-22
Also published as: GB8601458D0; GB2188357A; GB8603204D0; GB2190414B

Abstract

A window has an outer frame 1, for mounting in a building wall opening, and intermediate frame 2 hinged to the outer frame so as to pivot or tilt inwardly into the building, and an inner frame 4 in the intermediate frame, which can be opened relative to the intermediate frame. The inner frame may tilt or slide relative to the intermediate frame. In normal use the inner frame is open and closed as the operative window or ventilator. The intermediate frame, opening inwards, permits access to the exterior of the intermediate frame and glazing for cleaning and maintenance. <IMAGE>

Description

GB 2 190 414 A 1

SPECIFICATION positions, and

Windows Figures 15 and 16 illustrate windows according to further embodiments of the invention, and This invention relates to windows, and in Figure 17 shows a detail in cross section of particular to windows designed to provide multiple 70 window frames.

turning andlor tilting actions in a single unit. The first embodiment of the invention comprises The present invention resides in a window, a static outer frame 1 to be mounted at or in an comprising a static outer frame for mounting in a opening in the wall of a building. An inwardly building wall orthe like, an intermediate frame opening intermediate frame 2 has one vertical side hinged to the static outer frame for movement 75 hinged to one of the vertical sides of the static between a closed position in which the intermediate frame. The hinges, visible in Figures 3,7 and 8, are frame is seated on or in the outer frame and an open friction lever or linkage hinges 3, connected position in which the intermediate frame is pivoted between the horizontal upper and lower sides of the inwardly of the building or the like in which the outer frame, and the corresponding sides of the window is installed, and an inner frame 80 intermediate frame.

accommodated and supported by the intermediate A locking mechanism is provided for locking the frame and openable relative to the latter outwardly intermediate frame in its closed position in the outer of the building or the like in which the window is frame.

installed. Within the inwardly opening intermediate frame, According to one aspect of the invention, a 85 is an outwardly opening inner frame 4. This is window comprises a static outer frame, an hinged to the intermediate frame so as to tilt intermediate frame having one side hinged to one outwards with a "pitch and pivoV opening as can be side of the static outer frame for pivoting about a seen in Figures 5, 6 and 8. Friction lever or linkage vertical axis, and an inner frame hinged to the hinges 5 arranged to permit this movement are intermediate frame for tilting relative to the latter. 90 connected between the corresponding vertical sides The innerframe may fill the whole or only part of of the intermediate and inner frames. A locking the intermediate frame. mechanism is provided for fastening the inner Preferably, the hinges between the outer and frame in its closed position relative to the intermediate frames, and between the intermediate intermediate frame.

and inner frames, are friction lever hinges. 95 The inner frame is glazed, with single or double Preferably, the window is installed so that the glazing. 1 envisage that in normal use, the intermediate frame pivots inwards, and the inner intermediate frame will remain closed and only the frame opens outwards. inner frame will be opened, to act as a ventilator. As According to a second aspect of the invention, a can be seen from Figure 5, the outside of the window comprises a static outer frame, an 100 outwardly opening inner frame is not readily intermediate frame within the outer frame, hinged accessible for cleaning or maintenance from inside to tilt inwards, and an inner frame within the the building. When cleaning or maintenance is intermediate frame, hinged on the intermediate necessary, access is obtained by opening the frame to tilt outwards. intermediate frame, which opens into the building The intermediate frame may occupy all or only 105 so that both sides of the inner frame, and its hinges, part of the area of the outer frame, similarly the becomes accessible as can be seen in Figure 8.

innerframe may occupy all or only part of the area Suitable weather seals are provided between the of the intermediate frame. In a preferred inner and intermediate frames and between arrangement, the inner frame occupies only the intermediate and outer frames. The frames can be of upper part of the intermediate frame, acting as a 110 any convenient construction but are preferably ventilator, the rest of the intermediate frame being assembled from aluminium extrusions. Thermal filled by a fixed pane. breaks and other desirable window design features Preferably, the hinges between the outer and can be incorporated as required.

intermediate frames, and between the intermediate The precise design and construction of the friction and inner frames, are friction lever hinges. 115 hinges is not crucial but the arrangements shown in According to a third aspect of the present Figures 3 to 8 have been found to be particularly invention, a window comprises a static outer frame, satisfactory.

an intermediate frame hinged in the outer frame, In the illustrated embodiment, the glazed inner and at least one sliding inner frame in the frame occupies the entire area of the intermediate intermediate frame. 120 frame. This however is not essential. In an The inner frame may be arranged to slide alternative arrangement, the intermediate frame vertically or horizontally in the intermediate frame. may comprise one or more fixed panes, with the The intermediate frame, may be hinged in the outer tilting inner frame occupying only a portion of the frame, to turn about a vertical axis, or to tilt. area of the intermediate frame, for example the The invention will be described with reference to 125 upper or lower end or an intermediate region of the the accompanying drawings, in which: intermediate frame. In a further arrangement, two or Figures 1 to 8 show a window according to a first more inner frames may be provided in the embodiment of the invention, in different positions, intermediate frame, hinged and mounted to open Figures 9 to 14 show a window according to a separately or in unison.

second embodiment of the invention, indifferent 130 Similarly, the outer frame may carry one or more 2 GB 2 190 414 A 2 fixed panes in addition to the hinged intermediate opening inner frame may occupy the entire area of frame, and/or it may carry two or more intermediate the inwardly opening intermediate frame.

frames hinged about vertical axis to open inwards. The individual frames can be constructed in any The locking mechanisms forthe inner and convenient manner and of any convenient material, intermediate frames can be of any convenient kind. 70 but are preferably assembled from aluminium In the window illustrated in Figures 3 to 5, there are extrusions, with suitable seals, weather seals, two separate conventional window locks, the first thermal breaks and so on.

comprising a handle 6 on the outer frame for locking In order to reduce the number of different the intermediate frame shut, and the second extrusion cross sections required, the aluminium comprising a handle 7 on the inner frame for locking 75 extrusions may have a generally T-shaped cross the innerframe shut in the intermediate frame. section for example as illustrated in Figure 17 of the Alternatively, particularly for buildings in which the drawings. This shows, schematically in cross intermediate frame is intended normally to remain section, the building wall 20 adjacentto the window shut, for example in upper floors of buildings, the opening; a static outer frame 21, an inwardly lock for the intermediate frame may be of a type that 80 opening intermediate frame 22, an outwardly requires a special tool or key to release it, so that the opening inner frame 23, and a pane of glass 24 in intermediate frame cannot be opened accidentally the inner frame (alternatively this may be double or by children. glazed).

In a further possible construction, a single The outer and intermediate frames are made of composite locking mechanism is provided having 85 extrusions with identical cross sections in the form multiple operative positions in which it respectively of the T with a hollow stem, and with suitable locks shut the inner and intermediate frames, or detailing to accommodate seals. The T section of the releases one or the other of these frames, according outer frame locates against the building wall by to the position of the lock handle. It is particularly means of its stem and one side flange while the convenient if the lock handle for such a mechanism 90 other side flange provides a stop and seal bar for the is provided on the innerframe so that it can be used intermediate frame. The intermediate frame locates to manipulate the inner frame when that is and seals in the outer frame by resting against it as unlocked, or to manipulate the intermediate frame shown, the T sections being reversed relative to one when it is unlocked and the inner frame is locked. another so that a side flange of each frame locates Figures 9 to 14 show a second embodiment of the 95 against the bottom of the stem of the other frame.

invention. In this, the static outer frame 11 The other flange of the intermediate frame accommodates an intermediate frame 12 which can provides inner location for the inner frame 23 which tilt backwards and inwards on friction lever or also has an outer flange to locate on the base of the linkage hinges 13 which are connected between the step of the extrusion cross section of the vertical sides of the outer frame and the vertical 100 intermediate frame 22. The illustrated inner frame sides of the intermediate frame at the lower region 23 comprises extrusions of Z-cross section, with its of the latter. inner flange forming a glazing bar against which the The lower part of the intermediate frame contains glass is held by an external glazing bead 25, inner a fixed pane 14. The upper region of the and outer PVC seals being provided between the intermediate frame accommodates an innerframe 105 glass and the inner flange and external bead.

which is glazed and forms an outwardly opening Alternatively, the inner frame may also comprise T ventilating light as can be seen in Figure 10. This sections extrusions identical to those of the outer inner frame 15 is connected at its sides, to the and intermediate frames, with the glass located vertical sides of the intermediate frame by friction within one flange of the T-section as an external lever or linkage hinges 16 so as to open outwards 110 glazing bar, the glass being retained by an internal with a---pitchand pivot" action. glazing bead.

Suitable locking mechanisms are provided for To interconnect the extrusions forming the locking the intermediate frame 12 shut in the outer frames, corner cleats can be provided which are frame 11, and for locking the inner frame 15 shut in secured by screws inserted through the extrusions the intermediate frame 12. These may comprise 115 and into the cleats.

separate independent locking mechanisms for the The extrusions forming the frames may individual frames, or a combination locking incorporate thermal breaks.

mechanism capable of locking or opening the inner Figures 15 and 16 illustrate a further embodiment and intermediate frames selectively according to the of the invention, very schematically. In this position of the locking mechanism. 120 embodiment, a static outer frame 30 supports and In general the intermediate frame 12 will normally accommodates a hinged intermediate frame 31, be kept shut and therefore its locking mechanism which in turn supports and accommodates one or may be such as to require a special tool or key for more sliding inner frames 32.

opening it. In the window illustrated in Figure 15, the inner The intermediate frame 12, when opened, permits 125 frame (of which there may be one or two) slides access to the outer surface of the window panes and vertically in the intermediate frame 31, and the latter to the mechanism of the inner frame 15, for cleaning pivots about a vertical hinge 33 of any convenient or maintenance when the intermediate frame 12 is design, in the static outer frame 30.

tilted inwards as shown in Figure 11. Figure 16 shows an alternative arrangement in In an alternative arrangement, the outwardly 130 which the inner frame or frames 32 can slide 3 GB 2 190 414 A 3 horizontally in the intermediate frame 31, and the the latter slidably or outwardly of the building or the latter pivots about a horizontal axis in the outer like in which the window is installed.

frame 30, by means of friction lever or linkage 45 2. A window as claimed in claim 1 which hinges 34 atthe sides of these frames. comprises a static outer frame, an intermediate Both of these embodiments provide a frame having one side hinged to one side of the combination of conventional sliding window static outer frame for pivoting about a vertical axis, operation, with the ability to open the intermediate and an innerframe hinged to the intermediate frame frame inwards into the building, to give access to 50 for tilting relative to the latter.

the outer surface of the glazing for cleaning, and 3. A window as claimed in claim 2 in which the access for maintenance. hinges are friction lever hinges.

Suitable locking mechanisms are provided for 4. A window as claimed in claim 1 which locking and manipulating the inner and comprises a static outer frame, an intermediate intermediate frames. 55 frame within the outer frame, hinged to tilt inwards, The hinges can be butt hinges, friction hinges, or and an inner frame within the intermediate frame, any other convenient form of hinge. hinged on the intermediate frame to tilt outwards.

The sliding panes may together occupy the whole 5. A window as claimed in claim 4 in which the area of the intermediate frame; alternatively the hinges are friction lever hinges.

intermediate frame can be partly closed by one or 60 6. A window as claimed in claim 1 in which the more fixed panes. inner frame is shdable in the intermediate frame.

It will be seen that the described embodiments 7. A window which comprises a static outer frame, have the common feature of one or more inner an intermediate frame having one side hinged to frames providing normal opening and ventilation by one side of the static outer frame for pivoting about sliding or by outward movement, in an intermediate 65 a vertical axis, and an inner frame hinged to the frame which provides inward movement to give intermediate frame for tilting relative to the latter.

access for cleaning and maintenance, in a static 8. A window which comprises a static outer frame, outerframe. an intermediate frame within the outer frame, In yet another construction within the scope of the hinged to tilt inwards, and an inner frame within the invention, the outwardly opening inner frame is 70 intermediate frame hinged on the intermediate hinged about a vertical axis at its side, relative to the frame to tilt outwards.

inwardly opening intermediate frame. 9. A window as claimed in claim 7 or 8 in which the hinges are friction lever hinges.

Claims

CLAIMS 10. A window as claimed in any preceding claim in

1. A window, comprising a static outerframe for 75 which the innerframe fills only part of the mounting in a building wall or the like, an intermediate frame.

intermediate frame hinged to the static outer frame 11. A window as claimed in any of the preceding for movement between a closed position in which claims in which at least two adjacent frames are the intermediate frame is seated on or in the outer made of T-section members so disposed that the T frame and an open position in which the 80 section of one such frame is reversed relative to the intermediate frame is pivoted inwardly of the T-section of the adjacent such frame.

building or the like in which the window is installed, 12. A window substantially as herein described and an inner frame accommodated and supported with reference to Figures 1 to 8, Figures 9 to 14, or by the intermediate frame and openable relative to Figures 15 and 16 of the accompanying drawings.

Printed for Her Majesty's Stationery Office by Courier Press, Leamington Spa, 11187. Demand No. 8991685. Published by the Patent Office, 25 Southampton Buildings, London, WC2A lAY, from which copies may be obtained.