GB1562227A - Horizontal sliding windows - Google Patents

Description

(54) IMPROVEMENTS RELATING TO HORIZONTAL SLIDING WINDOWS (71) We, PILLAR PATENT GLAZ ING LIMITED, of 14-18 High Street, Stratford, London E15 2PR, a British Company, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement:- This invention relates to so-called horizontal sliding windows and doors which term is intended also to include windows and doors running on guide rollers or other means and not strictly "sliding." The invention is applicable to windows and doors having one fixed frame and one sliding frame, or two or even more sliding frames.

In such windows and doors it is necessary to provide means for supporting and guiding the moving frame or frames at their lower and upper edges, and also to provide an effective weather seal and draught seal around all four edges when they are closed.

Conventional windows and doors of this type formed of extruded aluminium sections have complicated cross-sections with projecting flanges, ribs and open grooves in which dirt and water may collect. Moreover, the overall appearance is not very attractive.

Accordingly, it is an object of the present invention to provide an improved horizontal sliding window and door of this general type.

Broadly stated the invention consists in a horizontally sliding window or door construction, comprising a surrounding outer frame and at least two inner frames of which at least one can slide horizontally, the surrounding frame having head and cill members of hollow box section, each with a longitudinal elongate narrow slot through which a part of the respective slidable frame extends, the or each slidable frame being supported on a load bearing surface within the hollow box section cill. This slot is closed by flexible seals which permit passage of the moving frame but restricts dirt, air and water penetration.

Conveninetly the lower part of the or each slidable frame has one or more rollers or runners mounted to move on the load bearing surface within the hollow box section cill.

In a preferred construction the box section cill provides two spaced narrow parallel slots to guide two sliding window frames, and the cill has a removable centre-piece and a removable side piece to facilitate assembly and installation. Preferably the vertical jambs are also of hollow box section and each provides a narrow vertical slot to receive a vertical flange on a moving frame when the window or door is closed.

The invention may be performed in various ways and one specific embodiment will now be described by way of example with reference to the accompanying drawings, in which: Figure 1 is a vertical cross-section through a head member of a fixed surrounding frame for a horizontal sliding window according to the invention Figure 2 is a horizontal section through a jamb, Figure 3 is a vertical section through the cill of the frame, and Figure 4 is a diagrammatic front elevation of the complete window.

As shown in Figure 4, this example of the invention is applied to a horizontal sliding window construction including a fixed surrounding frame 5 and two sliding glazed panels 6, 7. As shown in Figure 3, the cill 8 of the fixed surrounding frame is intended to located and support the lower edges of the two sliding glazed frames or panels each having a lower frame member indicated at 10 and 11. Each of these frame members has a downwardly extending blade 12 formed to receive and carry a roller or runner 13, the blades 12 and the supports for the runners being all formed as single extrusions with the members 10, 11. It will be seen from Figure 3 that the thickness of the blade 12 is considerably less than that of the glass sheet supported by each frame member.

The actual cill member 8 is of hollow box section when assembled, and comprises three main parts 15, 16, 17. The front side part 15 provides an undercut groove 18 tore- ceive a pile sealing strip and also affords the front wall 19 and the external wall 20 with part 21 of an inner wall. The roller 13 on the outer moving frame 10 runs directly on the wall 20. The intermediate part 16 provides a sealing strip slot 23 co-operating with the slot 18 and a second inwardly facing slot 24, which co-operates with another slot 25 on the inner side member 17. This intermediate part 16 also has a leg 26 joined to a horizontal flange 27, which rests on a pair of low rails 28 forming part of the bottom wall 20 so that the flange 27 is clear of the heads 29 of fastening screws or bolts. The flange 27 has a step 30 and is joined to a further flange 31 arranged to rest on a supporting web 32 forming part of the upright wall 21.

Locking screws 33 pass through these members 31, 32 to secure the intermediate part 16 in position. The inner side member 17 has a nib 35 which fits over the top of the inner wall 21, and a flat limb 36 which rests against the outer surface of this wall, and is secured into position by locking screws 37.

Slotted drain holes 40 are provided along the external edge of the wall 20 to allow moisture which may enter between the grooves 18 and 23 to drain off. Similarly any moisture entering between the slots 24, 25 will drain through openings 41 in the leg 26 and thence through the slots 40.

It will be seen that this construction allows the window to be assembled readily and entirely from the inner and right-hand face. The outer sliding frame 10 is first slid horizontally into position after which the intermediate part 16 is fitted and fixed, the inner frame 11 then installed, and finally the inner part 17 of the cill fixed. The construction occupies a minimum of space and avoids penetrating the frame at vulnerable positions.

The head member 9 illustrated in Figure 1 is complimentary in function, but is not designed to receive rollers or running supports. The top members 50, 51 of the two sliding frames each have a vertical flange 52 which is guided and located in the head member. This comprises a main part 53 which includes the front wall 54 and a groove 55for a sealing strip. The intermediate part 56 provides a second sealing strip groove 57 and another groove 58 for the inner sliding frame. This intermediate part is fixed by means of fastening screws 59. Finally, the head includes a third internal part 60 which provides a sealing groove 61 and this is likewise fixed to the flange 62 by means of screws 63.

The jamb illustrated in Figure 2 is also of hollow box section and is assembled from two main parts. Firstly, there is a channel 70 providing a front and rear wall 71, 72 and also a pair of sealing grooves 73, 74, and secondly an intermediate part 75 which has a narrow channel fitting over a central blade 76 and also provides one sealing groove 77 and one tapered anchorage rib 78. When this intermediate part 75 is installed, as shown, it provides one open narrow slot for the inner sliding frame 80, to receive a vertical flange 81 and form a weatherproof/ draughtproof seal. On the other vertical jamb this intermediate part 75 is reversed so that the anchorage rib 78 fits into the groove 74 and an open slot is then provided for the outer sliding panel. Thus the same two extrusions provide both jamb sections.

WHAT WE CLAIM IS: 1. A horizontally sliding window or door construction, comprising a surrounding outer frame and at least two inner frames of which at least one can slide horizontally, the surrounding frame having head and cill members of hollow box section, each with a longitudinal elongate narrow slot through which a part of the respective slidable frame extends, the or each slidable frame being supported on a load bearing surface within the hollow box section cill.

2. A window or door construction according to claim 1, in which the lower part of the or each slidable frame has one or more rollers or runners mounted to move on the load bearing surface within the hollow box section cill.

3. A window or door construction according to claim 1 or claim 2, in which the box section cill provides two spaced narrow parallel slots to guide two sliding window frames, and the cill has a removable centrepiece and a removable side piece to facilitate assembly and installation.

4. A window or door construction according to any of the preceding claims, in which the part of the or each slidable frame which extends through the narrow slot includes a blade or flange having a thickness less than that of the glass sheet supported by the frame.

5. A window or door construction according to any of the preceding claims, in which the vertical jambs are also of hollow box section and each provides a narrow vertical slot to receive a vertical flange on a slidable frame when the window is closed.

6. A window or door construction with at least one horizontal sliding frame or panel, substantially as described with reference to the accompanying drawings.

**WARNING** end of DESC field may overlap start of CLMS **.

Claims (6)

**WARNING** start of CLMS field may overlap end of DESC **. section when assembled, and comprises three main parts 15, 16, 17. The front side part 15 provides an undercut groove 18 tore- ceive a pile sealing strip and also affords the front wall 19 and the external wall 20 with part 21 of an inner wall. The roller 13 on the outer moving frame 10 runs directly on the wall 20. The intermediate part 16 provides a sealing strip slot 23 co-operating with the slot 18 and a second inwardly facing slot 24, which co-operates with another slot 25 on the inner side member 17. This intermediate part 16 also has a leg 26 joined to a horizontal flange 27, which rests on a pair of low rails 28 forming part of the bottom wall 20 so that the flange 27 is clear of the heads 29 of fastening screws or bolts. The flange 27 has a step 30 and is joined to a further flange 31 arranged to rest on a supporting web 32 forming part of the upright wall 21. Locking screws 33 pass through these members 31, 32 to secure the intermediate part 16 in position. The inner side member 17 has a nib 35 which fits over the top of the inner wall 21, and a flat limb 36 which rests against the outer surface of this wall, and is secured into position by locking screws 37. Slotted drain holes 40 are provided along the external edge of the wall 20 to allow moisture which may enter between the grooves 18 and 23 to drain off. Similarly any moisture entering between the slots 24, 25 will drain through openings 41 in the leg 26 and thence through the slots 40. It will be seen that this construction allows the window to be assembled readily and entirely from the inner and right-hand face. The outer sliding frame 10 is first slid horizontally into position after which the intermediate part 16 is fitted and fixed, the inner frame 11 then installed, and finally the inner part 17 of the cill fixed. The construction occupies a minimum of space and avoids penetrating the frame at vulnerable positions. The head member 9 illustrated in Figure 1 is complimentary in function, but is not designed to receive rollers or running supports. The top members 50, 51 of the two sliding frames each have a vertical flange 52 which is guided and located in the head member. This comprises a main part 53 which includes the front wall 54 and a groove 55for a sealing strip. The intermediate part 56 provides a second sealing strip groove 57 and another groove 58 for the inner sliding frame. This intermediate part is fixed by means of fastening screws 59. Finally, the head includes a third internal part 60 which provides a sealing groove 61 and this is likewise fixed to the flange 62 by means of screws 63. The jamb illustrated in Figure 2 is also of hollow box section and is assembled from two main parts. Firstly, there is a channel 70 providing a front and rear wall 71, 72 and also a pair of sealing grooves 73, 74, and secondly an intermediate part 75 which has a narrow channel fitting over a central blade 76 and also provides one sealing groove 77 and one tapered anchorage rib 78. When this intermediate part 75 is installed, as shown, it provides one open narrow slot for the inner sliding frame 80, to receive a vertical flange 81 and form a weatherproof/ draughtproof seal. On the other vertical jamb this intermediate part 75 is reversed so that the anchorage rib 78 fits into the groove 74 and an open slot is then provided for the outer sliding panel. Thus the same two extrusions provide both jamb sections. WHAT WE CLAIM IS:

1. A horizontally sliding window or door construction, comprising a surrounding outer frame and at least two inner frames of which at least one can slide horizontally, the surrounding frame having head and cill members of hollow box section, each with a longitudinal elongate narrow slot through which a part of the respective slidable frame extends, the or each slidable frame being supported on a load bearing surface within the hollow box section cill.

2. A window or door construction according to claim 1, in which the lower part of the or each slidable frame has one or more rollers or runners mounted to move on the load bearing surface within the hollow box section cill.

3. A window or door construction according to claim 1 or claim 2, in which the box section cill provides two spaced narrow parallel slots to guide two sliding window frames, and the cill has a removable centrepiece and a removable side piece to facilitate assembly and installation.

4. A window or door construction according to any of the preceding claims, in which the part of the or each slidable frame which extends through the narrow slot includes a blade or flange having a thickness less than that of the glass sheet supported by the frame.

5. A window or door construction according to any of the preceding claims, in which the vertical jambs are also of hollow box section and each provides a narrow vertical slot to receive a vertical flange on a slidable frame when the window is closed.

6. A window or door construction with at least one horizontal sliding frame or panel, substantially as described with reference to the accompanying drawings.