GB1583542A - Security arrangements for doors and windows - Google Patents

Description

(54) IMPROVEMENTS RELATING TO SECURITY ARRANGEMENTS FOR DOORS AND WINDOWS (71) 1, EDGAR FREDERICK HANSON, a British Subject, of 18, Breeden Drive, Curdworth, Birmingham B76 9HJ, do hereby declare the invention, for which I pray that a patent niay be granted to me, and the method by which it is to be performed, to be particularly described in and by the following statement: This invention concerns iihproVemeflts in Or relating to security arrangements for a door, window, or hatch assembly.

The present invention provides stay means, for a door, window or hatch assem- bly, comprising a stay asseftibly and a re- tainer assembly, wherein the stay assembly includes an elongate Stay which is recessed at intervals along its length to provide a row of recesses in an abutment surface; wherein the' retainer assembly includes a retaining guide and switch means; wherein the stay extends slidably through the retailing guide; and wherein the switch means is adapted to engage the abutment surface so as to be responsive to, movement of the stay, to bring one of the recesses out of engagement with the switch means, for actuating or giving an alarm signal.

The invention includes a door, window or hatch assembly provided with the stay means.

The invention will be described further, by way of example, with reference to the accompanying diagrammatical drawings, wherein: - Figure 1 shows a transverse. section through a window provided with stay means of the invention; and Figure 2 shows an enlarged section corresponding to the line II-II of Figure 1.

Figures 1 and 2 show a casement window assembly provided with the stay means.

The window assembly comprises a window 40 having a sub-frame pivotally supported in a carrier 11. The carrier is in the form of a timber frame located by connecting means in a peripheral mounting 12 of channel form which is fixedly secured to a wall. The connecting meaiis (not shown) permits the carrier to move when a force greater than à predetermined f'orc'e is ap- plied to the carrier, whereby to actiiate a switch td give an alarm Signal as described in my co-peiiding Application No. i901j4/76 (Serial No. 158354J). The Stay means comprises a stay assembly 30 and a retainer assembly. The' retainer assembly inc'lndes' switch means coniprising a microswitch 2213. The stay asseinbly comprises à stay 31 pivotally secured to the window by a connector.The underside of the stay 31 provides an abutment surface which is re- cessed at intervals to provide recesses or sockets for a ball 32 of the retainer as'-' sembly. The retainer assembly includes a rotatable retaining guide 33 which has a way 39 through which the stay extends', has an axial passage 34 for the ball 32 and has' a resiliently biased micrbswitch button ,2813..

The retainer assembly further includes à guide mounting 35 which is adapted to' locate the microswitch 22 and to support the retaining guide for rotation about the axis of the passage 34. The guide niount- ing 35 is held in place by concealed fasteners (not shown). A normal fixed peg 36 is provided to enter a terminal aperture 37 of the stay or anchoring the stay 31 when the window is closed.

In use, if the stay is moved through the guide 33, from the position shown, the ball will be forced against the bias out of that one of the sockets which it is shown to occupy, whereby to actuate the switch 22B.

The switch 22B is preferably disposed in a relay circuit with a key operated manual master control to render an alarm operative, so that when the alarm is operative the actuation of the switch will actuate a relay to energise the alarm until it is switched off by the master control.

Such an arrangement enables the window 40 to be left open slightly for ventilation with the alarm operative to give a warning if an attempt is made to open the window further.

The invention is not confined to the precise details of the foregoing example, and many variations are possible within the scope of the invention as defined by the appended claims. For example, the security arrangement may comprise any suitable connecting means adapted to connect the carrier and mounting so as to permit relative movement therebetween in a predetermined direction against the force of a bias. A resilient fitting or strip may be provided between the mounting and carrier to reduce draughts, and the carrier may be provided with an external cover portion which overlaps the outside of the mounting to deflect water from the mounting. Part of the mounting may be detachable to permit removal of the carrier from within the building after installation of the assembly.

The stay 31 is preferably captive in the retaining guide 33, the stay means being assembled by fitting the guide 33 over the stay, then inserting the guide into the mounting 35 and swaging over the lower parts of the guide, prior to the ball and microswitch being fitted into the passage 34, to prevent removal of the guide. Alternatively, the portion 38 of the guide which protrudes downwards into the stay may be replaced by a thrust member, which thrust member may be inserted after the stay has been fitted into the guide. The thrust member may be of screw damp form, to thrust down onto the stay to clamp the latter in a selected position to prevent the window being moved, a.g. by the wind. The switch may be secured to or located in a part of the guide mounting which may be modified for this purpose.An external spring may be located around the switch button to thrust against the ball to provide the bias. Instead of being linear, the stay could be curved and the retaining guide could be fixedly secured to or integral with the guide mounting.

WHAT I CLAIM IS: - 1. Stay means, for a door, window or hatch assembly, comprising a stay assembly and a retainer assembly, wherein the stay assembly includes an elongate stay which is recessed at intervals along its length to provide a row of recesses in an abutment surface; wherein the retainer assembly includes a retaining guide and switch means; wherein the stay extends slidably through the retaining guide; and wherein the switch means is adapted to engage the abutment surface so as to be responsive to movement of the stay, to bring one of the recesses out of engagement with the switch means, for actuating or giving an alarm signal.

2. Stay means as claimed in claim 1, wherein the stay is linear and the retaining guide is pivotally mounted on a guide mounting.

3. Stay means as claimed in claim 1 or 2, wherein the switch means comprises a ball, resiliently biased into engagement with the abutment surface, and a switch responsive to movement of the ball.

4. Stay means as claimed in claim 3, as appended to claim 2, wherein the switch is secured in or to the guide mounting.

5. Stay means as claimed in claim 1, 2, 3 or 4, wherein the stay is captive in the guide sleeve, and is securable in a predetermined position relative to the guide sleeve by a screw clamp thrust member.

6. Stay means substantially as hereinbefore described and as claimed in claim 1.

7. Stay means substantially as hereinbefore described and shown in Figures 1 and 2 of the accompanying drawings.

8. A door, window or hatch assembly incorporating the stay means as claimed in any one of claims I to 7.

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

Claims (8)

**WARNING** start of CLMS field may overlap end of DESC **. The invention is not confined to the precise details of the foregoing example, and many variations are possible within the scope of the invention as defined by the appended claims. For example, the security arrangement may comprise any suitable connecting means adapted to connect the carrier and mounting so as to permit relative movement therebetween in a predetermined direction against the force of a bias. A resilient fitting or strip may be provided between the mounting and carrier to reduce draughts, and the carrier may be provided with an external cover portion which overlaps the outside of the mounting to deflect water from the mounting. Part of the mounting may be detachable to permit removal of the carrier from within the building after installation of the assembly. The stay 31 is preferably captive in the retaining guide 33, the stay means being assembled by fitting the guide 33 over the stay, then inserting the guide into the mounting 35 and swaging over the lower parts of the guide, prior to the ball and microswitch being fitted into the passage 34, to prevent removal of the guide. Alternatively, the portion 38 of the guide which protrudes downwards into the stay may be replaced by a thrust member, which thrust member may be inserted after the stay has been fitted into the guide. The thrust member may be of screw damp form, to thrust down onto the stay to clamp the latter in a selected position to prevent the window being moved, a.g. by the wind. The switch may be secured to or located in a part of the guide mounting which may be modified for this purpose.An external spring may be located around the switch button to thrust against the ball to provide the bias. Instead of being linear, the stay could be curved and the retaining guide could be fixedly secured to or integral with the guide mounting. WHAT I CLAIM IS: -

1. Stay means, for a door, window or hatch assembly, comprising a stay assembly and a retainer assembly, wherein the stay assembly includes an elongate stay which is recessed at intervals along its length to provide a row of recesses in an abutment surface; wherein the retainer assembly includes a retaining guide and switch means; wherein the stay extends slidably through the retaining guide; and wherein the switch means is adapted to engage the abutment surface so as to be responsive to movement of the stay, to bring one of the recesses out of engagement with the switch means, for actuating or giving an alarm signal.

2. Stay means as claimed in claim 1, wherein the stay is linear and the retaining guide is pivotally mounted on a guide mounting.

3. Stay means as claimed in claim 1 or 2, wherein the switch means comprises a ball, resiliently biased into engagement with the abutment surface, and a switch responsive to movement of the ball.

4. Stay means as claimed in claim 3, as appended to claim 2, wherein the switch is secured in or to the guide mounting.

5. Stay means as claimed in claim 1, 2, 3 or 4, wherein the stay is captive in the guide sleeve, and is securable in a predetermined position relative to the guide sleeve by a screw clamp thrust member.

6. Stay means substantially as hereinbefore described and as claimed in claim 1.

7. Stay means substantially as hereinbefore described and shown in Figures 1 and 2 of the accompanying drawings.

8. A door, window or hatch assembly incorporating the stay means as claimed in any one of claims I to 7.