Static structures (e.g. – buildings) – Window or window sash – sill – mullion – or glazing – Sash having integral securing means
Patent
1990-04-20
1991-03-19
Chilcot, Jr., Richard E.
Static structures (e.g., buildings)
Window or window sash, sill, mullion, or glazing
Sash having integral securing means
52215, 52399, 52656, 49490, 49455, E04C 366
Patent
active
049999583
DESCRIPTION:
BRIEF SUMMARY
This invention relates to window assemblies
The conventional window assembly which has been in use for many years comprises a wooden or metal frame which is incorporated in the masonry of a building as it is constructed. Glass is subsequently fitted into the frame and it is held in position by putty or the like.
It is an object of the present invention to provide an improved form of window assembly.
According to the present invention, a window assembly comprises a rigid first frame defining an opening; and a glazed second frame adapted to be fitted into and close off the opening in the first frame, the second frame being of a plastics material and having a resilient part integral therewith which permits the second frame to be moved in one direction into the opening and thereafter coacts with the first frame to prevent the second frame from being withdrawn from the first frame in the direction which is opposite to the first direction.
According to another aspect of this invention there is provided a method of glazing a window opening within a building which comprises applying a first metal frame having a channel section and generally rectangular perimeter to a window opening during the course of erection of the building, securing the said first frame to the building structure adjacent it (with or without a sill between one part of the first frame and the lower surface of the window opening) during erection of the building then subsequently applying a glazed second frame having retaining means to the first frame such that the retaining means are caused to engage the first frame to securely attach said second frame to the first frame, and prevent separation thereof in a direction opposite to that of installation.
The fitting of the glazed second frame into the opening of the first frame is brought about in a very simple manner and this has a considerable time saving over the conventional window assembly.
Preferably, the rigid first frame is incorporated in a building structure as the structure is constructed. This is a desirable mode of construction for the builder who positions the frame on previously laid brickwork or the like and lays further masonry around the frame until it is fully incorporated in the building structure. At this stage, the second frame has not been fitted into the first frame and, consequently, there is no danger of the second frame and the glass being damaged.
The second frame is preferably manufactured from PVC while the first frame is preferably of metal, e.g. galvanised steel. The first frame is preferably of or includes channel section(s).
In order that the invention may be more readily understood, it will now be described, by way of example only, with reference to the accompanying drawings illustrating a preferred embodiment and in which:
FIG. 1 is a vertical section through a window assembly according to the present invention;
FIG. 2 is a horizontal section through the window assembly to the present invention; and
FIG. 3 is a vertical section, to an enlarged scale, of part of the assembly shown in FIG. 1.
In FIGS. 1 and 2, a window assembly is shown fitted in a building structure.
During the building of the structure, whether it be of bricks, blocks, stone, or other masonry, a rigid galvanised steel frame 1 is incorporated in the structure and is held in place by ties and the like (not shown) which tie into the masonry. A PVC sill 3 is conveniently positioned beneath the frame and a lintel 5 is positioned above the frame. The frame 1 is of generally rectangular cross-section and has a surface 7 which defines the opening through the frame. This surface is inclined such that the cross-section of the opening at one side of the frame is greater than at the opposite side of the frame. The frame is incorporated in the building structure so that the side having the larger opening is at the outside of the building.
A second frame 9, shown in greater detail in FIG. 3, is of extruded PVC and has a first part 11, and additional parts 13, 15 which extend in opposite directions and generally
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Chilcot Jr. Richard E.
John Carr (Press Lock) Limited
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