GB2563898A

GB2563898A - Window mounting

Info

Publication number: GB2563898A
Application number: GB1710407.6A
Authority: GB
Inventors: Bjorn Eirik; Ulsøe Niels
Original assignee: VKR Holding AS
Current assignee: VKR Holding AS
Priority date: 2017-06-29
Filing date: 2017-06-29
Publication date: 2019-01-02
Also published as: GB201710407D0

Abstract

An adjustable glazing block 24 is provided for use in retaining a glazing unit (10, fig 1) in a frame 12. The adjustable glazing block 24 has a body (48, fig 18) upon which a glazing unit can be supported. A first flange (58, fig 16) extends upwardly, in use, from one side of the body to retain the glazing unit in a frame. The glazing block also includes a retaining member 32, which is movably mounted to the body and has a second flange (64, fig 16) that extends upwardly in use to a greater extent than the first flange. The retaining member may include a screw adjustment to determine its position with respect to the body. In a second aspect, a fixed glazing block (30, fig 20) is provided that has a hollow body with upwardly facing openings so that adhesive within the body can contact a glazing unit, and one or more resilient projections extending from the body to be engagable with the glazing unit. Also provided are a glazing assembly with a window that is removably mounted in the frame, kits of parts, and a method of installing a window.

Description

Window Mounting

This invention concerns an adjustable glazing block, a glazing assembly, a fixed glazing block, a kit of parts for mounting a glazing assembly in a frame, a window assembly, and a method of installing a window.

When mounting window frames in a building it is often necessary to temporarily remove fixed glazing units to provide sufficient space for example to provide holes through the window frame into the surrounding wall, and/or to insert a number of screws into the frame and surrounding wall. It is therefore necessary to permit a fixed glazing unit to be removed and then replaced back into the window frame. Where is it known that it would be necessary to remove the fixed window pane to allow mounting of the window unit, the glazing unit will generally be supplied temporarily mounted in a frame.

According to a first aspect of the invention there is provided, an adjustable glazing block for use in retaining a glazing unit in a frame, the glazing block having a body upon which a glazing unit can be supported, a first flange extending upwardly in use from one side of the body to retain the glazing unit in a frame, the glazing block also including a retaining member which is movably mounted to the body, the retaining member including a second flange which extends upwardly in use to a greater extent than the first flange.

The second flange may extend at least generally parallel to the first flange, with the retaining member movable relative to the body in a direction at least generally perpendicular to the first and second flanges. A rotatable threaded member may be rotatably engageable with the retaining member and threadingly engageable with the body such that rotation thereof moves the retaining member towards or away from the body. A pair of spaced first flanges may be provided on the body, with the retaining member movable between the first flanges.

The body may be hollow, and include in use upwardly facing openings such that adhesive within the body can contact a glazing unit supported on the body to adhere the glazing unit to the body.

The body may include in use downwardly facing openings such that adhesive within the body can contact the frame to adhere the body to the frame.

An inlet for adhesive may be provided in the one side of the body.

An outlet for excess adhesive in the body may be provided in another side of the body.

The retaining member may be removably mountable to the body.

The body and retaining member may have cooperating formations to retain the retaining member connected to the body.

The cooperating formations may be automatically inter engaging when the retaining member is brought towards the body.

The cooperating formations may include a spring finger engageable with a cooperating formation on the body. A pair of spaced spring fingers may be provided, the spacing of which when relaxed is such that the spacing changes as the retaining member is brought into contact with the body, and thereafter the spacing of the spring fingers returns and retains the retaining member connected to the body.

The body may include a projection on the underside thereof locatable in an opening in the frame to mount the adjustable glazing block on the frame.

The body may increase in height towards the first flange.

The adjustable glazing block may include a formation to mount a glazing bead.

The glazing bead mounting formation may be such that a glazing bead is a snap fit thereon.

According to a second aspect of the invention there is provided a glazing keeper assembly including at least one adjustable glazing block according to any of the preceding paragraphs, a glazing unit, and one or more glazing keepers mountable on an upper side of the frame to point downwardly, the or each glazing clip including a third flange extending downwardly in use, the heights of the first, second and third flanges being such that when the second flange is not engaging with the glazing unit, the glazing unit can be lifted above the first flange and removed from the frame, but when the second flange is engaging with the glazing unit, the glazing unit cannot be lifted there past, and is therefore irremovably retained in the frame.

According to a third aspect of the invention there is provided a fixed glazing block for use in retaining a glazing unit in a frame, the fixed glazing block having a body against which a glazing unit can engage, the body is hollow and includes upwardly facing openings such that adhesive within the body can contact a glazing unit supported against the body to adhere the glazing unit to the body, and one or more resilient projections extending from the body to be engageable with the glazing unit.

The resilient projections may include one or more resilient arms which in a rest position are inclined away from the body.

The resilient projections may include a further resilient projection which in a rest position extends further from the body than the resilient arms.

The resilient projections may be arranged such that the further resilient projection requires a lesser force to be moved towards the body than the resilient arms.

The body may be hollow, and include in use upwardly facing openings such that adhesive within the body can contact a glazing unit supported against the body to adhere the glazing unit to the body.

An inlet may be provided on one side of the body.

An outlet for excess adhesive in the body is provided in another side of the body.

The body may increase in height towards an outer side thereof.

According to a third aspect of the invention there is provided a kit of parts for mounting a glazing unit in a frame, the kit of parts including an adjustable glazing block according to any of the preceding paragraphs, a plurality of fixed glazing blocks according to any of the preceding paragraphs, a glazing keeper mountable on the frame, the or each glazing keeper including a flange extending outwardly in use to retain a glazing unit on the frame, a plurality of glazing retainers for temporarily retaining a glazing unit in the frame, the retainers including a formation locatable between the frame and the glazing unit, a formation for resiliently engaging against a frame, and a formation for retaining a glazing bead on the frame, a plurality of fixed glazing clips for retaining a glazing unit in a frame, the glazing clips each including a mounting part locatable between a glazing unit and a frame, and a flange extending from one side of the mounting part to retain a glazing unit in the frame.

The glazing retainers may include an opening engageable with a projection on the frame.

The opening may include a slot through which the projection on the frame can slide as the glazing retainer is pushed onto the frame.

Formations may be provided on the sides of the slot with which the projection is engageable to retain the glazing retainer on the frame.

The glazing retainers may include one or more resilient members which extend outwardly from the remainder of the glazing retainer to engage between a glazing unit and the frame.

The retaining members may include a hook part which can receive and retain a glazing bead, which retaining members can be flexed to release the glazing bead from the hook part.

An opening may be provided through the fixed glazing clip to permit a fastening means to extend therethrough to mount the fixed glazing clip to a frame.

The fixed glazing clip opening may include a slot through which the fastening means can slide as the fixed glazing clip is slid into a required position on the frame.

Formations may be provided on the sides of the slot with which the fastening means is engageable to retain the fixed glazing block in position on the frame.

The glazing clips may include a formation to mount a glazing bead.

According to a fourth aspect of the invention there is provided a window assembly for mounting at a required location, the assembly including a frame, a glazing unit removably mounted in the frame, which glazing unit can be subsequently permanently mounted in the frame, a glazing bead, the assembly including a formation for removably retaining the glazing bead on the frame prior to mounting of the assembly in the required location.

The window assembly may include any of an adjustable glazing block according to any of the preceding paragraphs; a plurality of fixed glazing blocks according to any of the preceding paragraphs; a glazing keeper mountable on the frame, the or each glazing keeper including a flange extending outwardly in use to retain a glazing unit on the frame; a plurality of glazing retainers for temporarily retaining a glazing unit in the frame, the retainers including a formation locatable between the frame and the glazing unit; a plurality of fixed glazing clips for retaining a glazing unit in a frame, the glazing clips each including a mounting part locatable between a glazing unit and a frame, and a flange extending from one side of the mounting part to retain a glazing unit in the frame.

According to a fifth aspect of the invention there is provided a method of installing a window frame in a fixture using a kit of parts according to any of the preceding paragraphs, the method including supplying a window frame with one or more adjustable glazing blocks and one or more glazing keepers mounted thereon to temporarily mount a glazing unit thereon, with a plurality of temporary glazing retainers mounted between the glazing unit and the frame, with glazing beads mounted on the frame by the adjustable glazing block or blocks and the temporary glazing retainers, removing the glazing beads and the temporary glazing retainers from the frame, once the frame is in or adjacent a required location, removing the glazing unit from the frame, mounting the frame to a fixture, replacing the glazing unit in the frame, aligning the glazing unit in the frame using the temporary glazing retainers, attaching a plurality of glazing clips between the glazing unit and the frame, attaching a plurality of fixed glazing blocks between the glazing unit and the frame and mounting to the frame, attaching the or each retaining member on the or each adjustable glazing block, and moving the or each retaining member into a required position to retain the glazing unit in position, removing the temporary glazing retainers, applying adhesive to the adjustable and fixed glazing blocks.

The temporary glazing retainers may be removed once the glazing unit is mounted back in the frame.

The glazing bead may be replaced to engage with the adjustable glazing block and the glazing clips. A plurality of screws or other fasteners may be mounted on the frame during manufacture whilst the glazing unit is removed, for mounting the glazing clips thereon.

Embodiments of the present invention will now be described by way of example only and with reference to the accompanying drawings, in which:-

Fig. 1 is a diagrammatic cross-sectional view of a lower part of a window installed by the present invention;

Fig. 2 is a diagrammatic external view of a window prior to installation;

Fig. 3 is a diagrammatic illustrative external view of a further window prior to installation;

Fig. 4 is a diagrammatic external view of a window during installation according to the invention;

Fig. 5 is a similar view to Fig. 4 but further on in the installation process and showing additional components;

Fig. 6 is a similar view to Fig. 5 but even further on in the installation process and again showing still more components.

Fig. 7 is a diagrammatic cross-sectional side view of a window according to the invention prior to installation;

Fig. 8 is a diagrammatic perspective view of a glazing keeper as used in the invention;

Fig. 9 is a diagrammatic side view of the product of Fig. 8;

Fig. 10 is a diagrammatic side view of a temporary glazing retainer usable in the invention;

Fig. 11 is a plan view of the product of Fig. 10;

Fig. 12 is a diagrammatic perspective plan view of the product of Fig. 10;

Fig. 13 is a diagrammatic perspective view of the product of Fig. 10 in use;

Fig. 14 is a diagrammatic cross-sectional side view of an alternative temporary glazing retainer being used in the invention;

Fig. 15 is a diagrammatic perspective view of an adjustable glazing block being used in the invention in a first condition;

Fig. 16 is a similar view to Fig. 15 but with the component in a second condition;

Fig. 17 is a diagrammatic perspective view of the adjustable glazing block of Fig. 15 in the first condition;

Fig. 18 is a diagrammatic plan view of the adjustable glazing block of Fig. 15 in the first condition;

Fig. 19 is a diagrammatic view from beneath of the adjustable glazing block of Fig. 15 in a first condition;

Fig. 20 is a diagrammatic perspective view from above of a fixed glazing block according to the invention;

Fig. 21 is a diagrammatic front view of the fixed glazing block of Fig. 20;

Fig. 22 is a diagrammatic side view of the fixed glazing block of Fig. 20;

Fig. 23 is a diagrammatic view from beneath of the fixed glazing block of Fig. 20;

Fig. 24 is a diagrammatic perspective view showing components according to the invention in use;

Fig. 25 is a diagrammatic side view of the components shown in Fig. 24;

Fig. 26 is a perspective diagrammatic rear view of a glazing clip according to the invention;

Fig. 27 is a diagrammatic perspective front view of the glazing clip of Fig. 26;

Fig. 28 is a diagrammatic side view of the glazing clip of Fig. 26;

Fig. 29 is a diagrammatic cross-sectional view showing use of various components to the invention;

Fig. 30 is a diagrammatic rear perspective view of a further glazing clip according to the invention; and

Fig. 31 is a diagrammatic view from beneath of the further glazing clip of Fig. 30;

The drawings show various components for mounting a fixed glazing unit 10 in a window frame 12. Fig. 1 shows a wooden frame 12 which provides a cill 14 on the inside. A rebate 16 is provided to receive the glazing unit 10, which in this instance is triple glazed. The frame 12 is inclined downwardly from the rebate 16. A glazing clip 18 is mounted towards the external end of the downwardly sloping face which glazing clip 18 holds the glazing unit 10 in place. The glazing clip 18 is profiled to receive an aluminium glazing bead 20 in a snap fit. An aluminium frame covering 22 is provided on the outer face of the wooden frame 12 below the glazing bead 20.

Fig. 2 diagrammatically shows such a glazing unit 10 as would be delivered from a factory. The glazing unit 10 will be provided in the frame 12, and for instance two adjustable glazing blocks 24 would be provided on a lower part of the frame 12, and a single glazing keeper 26 is provided on an upper part of the frame 12, both of which are not visible in Fig. 2, but both of these components can be seen in Figs. 4 and 5. The glazing bead 20 comprises four lengths of glazing bead connected together into a rectangle. Four temporary glazing retainers 28 are provided, one towards each end of the top of the glazing unit 10 to support a top part of the glazing bead 20. A temporary glazing retainer 28 is provided on each side of the frame 12 to support a side part of the glazing bead 20. The temporary glazing retainers 28 retain the glazing bead 20 in front of the frame 12, when the glazing unit 10 is supplied from a factory.

Fig. 3 shows a different arrangement where the glazing bead 20 and frame 12 have been removed, and two glazing keepers 26 can be seen at the top of the glazing unit 10, and two adjustable glazing blocks 24 at the lower end of the glazing unit 10. It is to be realised that the number of glazing keepers 26 and glazing blocks 24 used, will depend at least to a degree on the size of the frame 12 and glazing unit 10.

In Fig. 4 the rectangular glazing bead 20 has been removed which show the adjustable glazing blocks 24 and the glazing keeper 26. After the glazing unit 10 has been removed, the two temporary glazing retainers 28 from the top of the unit have been moved to upper parts on each side of the sides of the glazing unit. Fig. 4 shows a frame without a glazing unit as do Figs. 5 and 6 (for clarity).

Fig. 5 also shows the location of two fixed glazing blocks 30 on each of the top of the frame 12 and the sides of the frame 12, whilst the two adjustable glazing blocks 24 are provided on the lower part of the frame 12.

Fig. 6 also shows the location of glazing clips 18, where four are provided on the top of the frame 12, three on each side, and two on the lower edge of the frame 12, between the adjustable glazing blocks 24.

Fig. 7 diagrammatically shows a double-glazed glazing unit 10 prior to installation, i.e. as supplied from a factory, which at the top is being held in place by a temporary glazing retainer 28, which glazing retainer 28 is holding an upper part of the glazing bead 20. At the lower edge of the glazing unit 10 an adjustable glazing block 24 is shown retaining the glazing unit 10 in position. A lower part of the glazing bead 20 is also shown, which part during the installation process will be mounted to a retaining member 32 (not shown here) of the adjustable glazing block 24.

Figs. 8 and 9 show a glazing keeper 26 which will be mountable to an upper part of the frame 12 to extend downwardly therefrom. The glazing keeper 26 includes two profiled projections 34 which can locate in preformed holes in the frame 12 to retain the keeper 26 in position. The glazing keeper 26 also includes a flange 35, which in this instance is provided in two parts, which acts as a third flange as will hereinafter be described.

Figs. 10 to 13 show a first temporary glazing retainer 28 extendable between the glazing unit 10 and the frame 12. On a face of a web 36 which face is directed away from the glazing unit 10, two resilient arcuate strips 38 are provided. Between the arcuate strips 38, a slot 40 is provided extending from a rear face in use, with profiled edges 42, and an upper chamfer 44. The profiling of the slot 40 provides a number of arcuate recesses which can locate for instance the shaft of a screw extending therethrough, with the head of the screw being accepted by the chamfer 44.

The front edge of the retainer 28 defines a profiled hook member 46 which can receive a glazing bead 20 as shown for instance in Fig. 13. The retainer 28 is made of a sufficiently resilient material, that the hook member 46 can when required be bent to release the glazing bead 20 therefrom. Alternatively the part of the retainer 28 between the web 36 and the hook member 46 can be flexed to release the glazing bead 20 therefrom.

Fig. 14 shows an alternative temporary glazing retainer 96 in a double glazed window. In this instance, the retainer 96 has an arrow head cross-sectional profile 98 for engagement between the frame 12 and also the glazing unit 10. This shall though operate in a similar way to the other temporary closing retainer 32. The arrow head profile creates a flexible wedge to hold between the glazing unit 10 and the frame 12, whilst not exerting too much pressure on the glazing unit 10 to cause damage thereto.

Figs. 15 to 19 show an adjustable glazing block 24. The glazing block 24 includes a profiled body 48 which converges rearwardly as shown. The body 48 defines two cavities 50 which can receive for instance adhesive. At the front and centrally a boss 52 is provided with a downwardly extending profiled member 54 extending therefrom which can locate for instance in a hole in the frame 12 to correctly locate the glazing block 24. A threaded hole 56 is provided in the boss 52. A pair of upstanding flanges 58 which extend upwardly beyond the remainder of the body 48, are provided on either side of the boss 52 to define first flanges.

The adjustable glazing block 24 also includes a retaining member 32 which is selectively mountable to the body 48. The retaining member 32 has two spring fingers 58 with slightly enlarged heads 60, and which converge slightly near the heads 60 in a relaxed condition as shown in Fig. 18. The retaining member 32 can be snap fitted on the glazing block 24 by pushing the spring fingers 58 past the boss 52, which will cause the spring fingers to part, and which will then return towards each other, thereby holding the retaining member 32 to the body 48.

An opening 62 is provided in the front of the retaining member 32 through which a screw can freely rotate, which screw can then engage in the threaded hole 56 in the body 48 to hold the retaining member 32 to the body 48. A further higher flange 64 which defines a second flange, is provided along the front of the retaining member 32. Therefore, when the retaining member 32 is mounted to the body the further flange 64 defines a higher second flange, than the first flanges on either side thereof, defined by the upstanding flanges 58. The second flange can be moved into or out of the body 48 by turning off the screw. The second flange can thus be moved further into the body than the first flanges, to retain the glazing unit 10 in a required final position in the rebate 16 in the frame 12.

An opening 65 is provided in the front of the body 48 leading to a one of the cavities 50 which interconnects with the other cavity 50. A further opening 66 is provided at the rear of the body 48 on one side leading from the one cavity, so that excess adhesive can pass out therethrough onto an area of the frame 12 beneath the glazing unit 10.

Figs. 20 to 23 show a fixed glazing block 30 which has a hollow body 68 which is upwardly and downwardly open, to receive adhesive. A hole 70 is provided in the front of the hollow body 68 to receive adhesive. Openings 72 are provided in each of the side walls of the body 68 towards the rear to allow excess adhesive to escape therethrough. Again, the body 68 converges from the front.

Upstanding resilient projections are provided on an upper surface of the body 68. Firstly, a pair of upwardly inclined fingers 74 are provided towards each side of the body 68 towards the front thereof. On a side of the body 68 there is provided a compressible element 76 in the form of a semicircular upstanding projection with a horizontal axis. The compressible element 76 may be of a different material to the remainder of the body 68, and may be such that a lesser force is required to move the element 76 towards the body than the fingers 74, the compressible element 76 may extend further from the body 68 than the inclined fingers 74. Figs. 24 and 25 show a fixed block 30 and a glazing keeper 26 in position extending downwardly from the underside of the top of the frame 12.

Figs. 26 to 28 show a glazing clip 18 which has a generally L-shaped cross-section, but with the base 78 of the L converging away from the apex 80. The stem 82 of the L is profiled to receive a glazing bead 20 in a snap fit. A pre-drilled inclined hole 84 may be provided in the front of the glazing clip 18 to permit mounting thereof. Fig. 29 shows a glazing clip 18 in place on a frame 12, with a glazing bead 20 snap fitted thereonto.

Figs. 30 and 31 show an alternative glazing clip 86. In this instance in the base 88 of the L of the glazing clip 86 a pair of profiled slots 90 are provided. Each slot 90 extends from an open end at a respective side, and is inclined forwards. In this instance one edge 92 of the slots 90 is profiled to receive the shank of a screw. The slots 90 are provided with a countersunk upper section 94, such that the head of a screw, preferably pre-installed in the frame 12 in a factory, could be slid in from the side into a slot 90 as the glazing clip 86 is moved, and as the screw head is slid along the slot 90 the glazing clip 86 would be urged rearwardly in the frame 12.

The various above described components can be used in the following way to remove and then refit a glazing unit 10 in a frame 12, whilst mounting a window frame in an opening in a fixture. The window frame is supplied with the glazing unit 10 temporarily held therein by four temporary glazing retainers 32 supporting the rectangular glazing bead 20, a glazing keeper 26, and two adjustable glazing blocks 24, which blocks 24 do not have the retaining members 32 fitted thereto at this time.

The glazing bead 20 is removed, and the temporary glazing retainers 32 are removed. The glazing unit 10 can then be taken out of the frame 12, by lifting and then swinging outwardly the lower edge of the glazing unit 10. As can be seen for instance from Fig. 10 there is sufficient space for the glazing unit 10 to be moved upwardly to impact against the top of the frame 12 if the temporary glazing retainers 32 have been removed, such that a lower edge of the glazing unit 10 will be clear of the first flanges provided by the adjustable glazing blocks 24 without the retaining members 32.

The frame 12 can then be located in a required place in a fixture such as in a window opening, and the frame screwed into place with screws extending through side, top and bottom edges of the frame, as required. The glazing unit 10 is then returned into the frame 12, placing the upper edge behind the glazing keeper 26 and swinging the lower edge to pass over the first flanges provided by the adjustable glazing blocks 24. The glazing unit 10 is then lowered to rest on the glazing blocks 24. Two temporary glazing retainers 32 are located on each side of the glazing unit 10 engaging against the sides of the frame 12 so that the glazing unit 10 is aligned in the centre of the frame 12. A number of fixed glazing blocks 30 as shown in Fig. 5, are now mounted between the frame 12 and the edge of the glazing unit 10. Whilst the glazing unit 10 is removed from the frame 12, a number of screws with protruding screw heads may be mounted in the frame 12, if not already mounted during initial manufacture.

The retaining members 32 are snap fitted onto the bodies 48 of the adjustable glazing blocks 24. A screw is then threaded through the opening 62 in the retaining member 32 to engage in the threaded hole 56 in the adjustable glazing block boss 52 and screwed in to locate the retaining member 32 in a required position to hold the glazing unit 10 in a required final place deeper in the frame rebate 16.

Silicone or other adhesive is then injected through the holes 70 in the front of the adjustable and fixed glazing blocks 24, 30, until such glazing blocks 24, 30 are full of adhesive. The adhesive bonds the glazing unit 10 to the blocks 24, 30 and the blocks 24, 30 to the frame 12. With the fixed glazing blocks 30 the resilient fingers 74 retain the fixed glazing blocks in position whilst the silicone or other adhesive solidifies. The other resilient member 76 is primarily used to hold the fixed glazing blocks 30 in position while inserting the glazing blocks 30 between the frame 12 and the edge of the glazing unit 10 until a final position is reached. A number of glazing clips 18 are now mounted with the base 78 between the frame 12 and the edge of the glazing unit 10, onto the screws provided on the frame and/or by inserting inclined screws through the front of the glazing clips 18 as illustrated for instance in Fig. 27. The glazing bead 20 can now be snap fitted onto the glazing clips 18 and the retaining members 32 of the adjustable glazing blocks 24. Alternatively the glazing clips 18 can be mounted in position prior to injection of the adhesive.

There are thus described a number of components, and a kit of parts usable in installing a glazing unit, and particularly in removably mounting a fixed glazing unit in a window frame. The adjustable glazing blocks have been found to be advantageous in permitting temporary and permanent mounting of the glazing units, and also adjustment of the holding of the glazing units by movement of the retaining member. The fixed glazing blocks have also been found to be advantageous relative to previous proposals.

Various modifications may be made without departing from the scope of the invention. For instance, any of the above features can be combined. The various components may be mounted to the frame by different means. The glazing beads could be differently mounted.

Whilst endeavouring in the foregoing specification to draw attention to those features of the invention believed to be of particular importance it should be understood that the Applicant claims protection in respect of any patentable feature or combination of features hereinbefore referred to and/or shown in the drawings whether or not particular emphasis has been placed thereon.

Claims

1. An adjustable glazing block for use in retaining a glazing unit in a frame, the glazing block having a body upon which a glazing unit can be supported, a first flange extending upwardly in use from one side of the body to retain the glazing unit in a frame, the glazing block also including a retaining member which is movably mounted to the body, the retaining member including a second flange which extends upwardly in use to a greater extent than the first flange.

2. An adjustable glazing block according to claim 1, in which the second flange extends at least generally parallel to the first flange, and the retaining member is movable relative to the body in a direction at least generally perpendicular to the first and second flanges.

3. An adjustable glazing block according to claims 1 or 2, in which a rotatable threaded member is rotatably engageable with the retaining member and threadingly engageable with the body such that rotation thereof moves the retaining member towards or away from the body.

4. An adjustable glazing block according to any of the preceding claims, in which a pair of spaced first flanges is provided on the body, and the retaining member is movable between the first flanges.

5. An adjustable glazing block according to any of the preceding claims, in which the body is hollow, and includes in use upwardly facing openings such that adhesive within the body can contact a glazing unit supported on the body to adhere the glazing unit to the body.

6. An adjustable glazing block according to claim 5, in which the body includes in use downwardly facing openings such that adhesive within the body can contact the frame to adhere the body to the frame.

7. An adjustable glazing block according to claims 5 or 6, in which an inlet for adhesive is provided in the one side of the body.

8. An adjustable glazing block according to claim 7, in which an outlet for excess adhesive in the body is provided in another side of the body.

9. An adjustable glazing block according to any of the preceding claims, in which the retaining member is removably mountable to the body

10. An adjustable glazing block according to claim 9, in which the body and retaining member have cooperating formations to retain the retaining member connected to the body.

11. An adjustable glazing block according to claim 10, in which the cooperating formations are automatically inter engaging when the retaining member is brought towards the body.

12. An adjustable glazing block according to claims 10 or 11, in which the cooperating formations include a spring finger engageable with a cooperating formation on the body.

13. An adjustable glazing block according to claim 11, in which a pair of spaced spring fingers are provided, the spacing of which when relaxed is such that the spacing changes as the retaining member is brought into contact with the body, and thereafter the spacing of the spring fingers returns and retains the retaining member connected to the body.

14. An adjustable glazing block according to any of the preceding claims, in which the body includes a projection on the underside thereof locatable in an opening in the frame to mount the adjustable glazing block on the frame.

15. An adjustable glazing block according to any of the preceding claims, in which the body increases in height towards the first flange.

16. An adjustable glazing block according to any of the preceding claims, in which the adjustable glazing block includes a formation to mount a glazing bead.

17. An adjustable glazing block according to claim 16, in which the glazing bead mounting formation is such that a glazing bead is a snap fit thereon.

18. A glazing keeper assembly including at least one adjustable glazing block according to any of the preceding claims, a glazing unit, and one or more glazing keepers mountable on an upper side of the frame to point downwardly, the or each glazing keeper including a third flange extending downwardly in use, the heights of the first, second and third flanges being such that when the second flange is not engaging with the glazing unit, the glazing unit can be lifted above the first flange and removed from the frame, but when the second flange is engaging with the glazing unit, the glazing unit cannot be lifted there past, and is therefore irremovably retained in the frame.

19. A fixed glazing block for use in retaining a glazing unit in a frame, the fixed glazing block having a body against which a glazing unit can engage, the body is hollow and includes upwardly facing openings such that adhesive within the body can contact a glazing unit supported against the body to adhere the glazing unit to the body, and one or more resilient projections extending from the body to be engageable with the glazing unit.

20. A fixed glazing block according to claim 19, in which the resilient projections may include one or more resilient arms which in a rest position are inclined away from the body.

21. A fixed glazing block according to claim 20, in which the resilient projections include a further resilient projection which in a rest position extends further from the body than the resilient arms.

22. A fixed glazing block according to claim 21, in which the resilient projections are arranged such that the further resilient projection requires a lesser force to be moved towards the body than the resilient arms.

23. A fixed glazing block according to any of claims 19 to 22, in which the body is hollow, and includes in use downwardly facing openings such that adhesive within the body can contact the frame to adhere the body to the frame.

24. A fixed glazing block according to any of claims 19 to 23, in which an inlet is provided on one side of the body.

25. A fixed glazing block according to any of claims 19 to 24, in which an outlet for excess adhesive in the body is provided in another side of the body.

26. A fixed glazing block according to any of claims 19 to 25, in which the body increases in height towards an outer side thereof.

27. A kit of parts for mounting a glazing unit in a frame, the kit of parts including an adjustable glazing block according to any of claims 1 to 17, a plurality of fixed glazing blocks according to any of claims 19 to 26, a glazing keeper mountable on the frame, the or each glazing keeper including a flange extending outwardly in use to retain a glazing unit on the frame, a plurality of glazing retainers for temporarily retaining a glazing unit in the frame, the retainers including a formation locatable between the frame and the glazing unit, a formation for resiliently engaging against a frame, and a formation for retaining a glazing bead on the frame, a plurality of fixed glazing clips for retaining a glazing unit in a frame, the glazing clips each including a mounting part locatable between a glazing unit and a frame, and a flange extending from one side of the mounting part to retain a glazing unit in the frame.

28. A kit of parts according to claim 27, in which the glazing retainers include an opening engageable with a projection on the frame.

29. A kit of parts according to claim 28, in which the opening includes a slot through which the projection on the frame can slide as the glazing retainer is pushed onto the frame.

30. A kit of parts according to claim 29, in which formations are provided on the sides of the slot with which the projection is engageable to retain the glazing retainer on the frame.

31. A kit of parts according to any of claims 27 to 30, in which the glazing retainers include one or more resilient members which extend outwardly from the remainder of the glazing retainer to engage between a glazing unit and the frame.

32. A kit of parts according to any of claims 27 to 31, in which the retaining members include a hook part which can receive and retain a glazing bead, which retaining members can be flexed to release the glazing bead from the hook part.

33. A kit of parts according to any of claims 27 to 32, in which an opening is provided through the glazing clip to permit a fastening means to extend therethrough to mount the glazing clip to a frame.

34. A kit of parts according to claim 33, in which the glazing clip opening includes a slot through which the fastening means can slide as the glazing clip is slid into a required position on the frame.

35. A kit of parts according to claim 34, in which formations are provided on the sides of the slot with which the fastening means is engageable to retain the fixed glazing block in position on the frame.

36. A kit of parts according to any of claims 27 to 35, in which glazing clips include a formation to mount a glazing bead.

37. A kit of parts according to claim 36, in which a glazing bead mounting formation is such that a glazing bead is a snap fit thereon.

38. A window assembly for mounting at a required location, the assembly including a frame, a glazing unit removably mounted in the frame, which glazing unit can be subsequently permanently mounted in the frame, a glazing bead, the assembly including a formation for removably retaining the glazing bead on the frame prior to mounting of the assembly in the required location.

39. A window assembly according to claim 38, including any of an adjustable glazing block according to any of claims 1 to 17; a plurality of fixed glazing blocks according to any of claims 19 to 26; a glazing keeper mountable on the frame, the or each glazing keeper including a flange extending outwardly in use to retain a glazing unit on the frame; a plurality of glazing retainers for temporarily retaining a glazing unit in the frame, the retainers including a formation locatable between the frame and the glazing unit; a plurality of fixed glazing clips for retaining a glazing unit in a frame, the glazing clips each including a mounting part locatable between a glazing unit and a frame, and a flange extending from one side of the mounting part to retain a glazing unit in the frame.

40. A method of installing a window frame in a fixture using a kit of parts according to any of claims 27 to 37, the method including supplying a window frame with one or more adjustable glazing blocks and one or more glazing keepers mounted thereon to temporarily mount a glazing unit thereon, with a plurality of temporary glazing retainers mounted between the glazing unit and the frame, with a glazing bead mounted on the frame by the adjustable glazing block or blocks and the temporary glazing retainers, removing the glazing bead and the temporary glazing retainers from the frame, once the frame is in or adjacent a required location, removing the glazing unit from the frame, mounting the frame to a fixture, replacing the glazing unit in the frame, aligning the glazing unit in the frame using the temporary glazing retainers, attaching a plurality of glazing clips between the glazing unit and the frame, attaching a plurality of fixed glazing blocks between the glazing unit and the frame and mounting to the frame, attaching the or each retaining member on the or each adjustable glazing block, and moving the or each retaining member into a required position to retain the glazing unit in position, removing the temporary glazing retainers, applying adhesive to the adjustable and fixed glazing blocks.

41. A method according to claim 40, in which the temporary glazing retainers are removed once the glazing unit is mounted back in the frame.

42. A method according to claims 40 or 3841 in which the glazing bead is replaced to engage with the adjustable glazing block and the glazing clips.

43. A method according to any of claims 40 to 42, in which a plurality of screws or other fasteners are mounted on the frame during manufacture, or whilst the glazing unit is removed, for mounting the glazing clips thereon.