GB2415226A - Shoot-bolt or bi-directional espagnolette locking mechanism comprising pin and slot to prevent handle rotation - Google Patents
Shoot-bolt or bi-directional espagnolette locking mechanism comprising pin and slot to prevent handle rotation Download PDFInfo
- Publication number
- GB2415226A GB2415226A GB0413512A GB0413512A GB2415226A GB 2415226 A GB2415226 A GB 2415226A GB 0413512 A GB0413512 A GB 0413512A GB 0413512 A GB0413512 A GB 0413512A GB 2415226 A GB2415226 A GB 2415226A
- Authority
- GB
- United Kingdom
- Prior art keywords
- locking
- drive
- drive mechanism
- pin
- elements
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C9/00—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing
- E05C9/04—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with two sliding bars moved in opposite directions when fastening or unfastening
- E05C9/041—Arrangements of simultaneously actuated bolts or other securing devices at well-separated positions on the same wing with two sliding bars moved in opposite directions when fastening or unfastening with rack and pinion mechanism
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lock And Its Accessories (AREA)
Abstract
A drive mechanism is disclosed which comprises first and second drive elements 7, 12 for connection to first and second locking bars. The mechanism also comprises an arm 3 for connection to a rotatable handle, the arm having a pin 5 engagable in a slot 6 formed in the first or second drive elements 7, 12. The slot 6 has a recess 14 at one end. When the locking bars are in the locked position, in response to an unauthorised force applied in a direction to unlock the locking bars, the pin 5 enters the recess 14 to lock the drive elements in position and prevent rotation of the handle. The slot 6 may be elongated in a direction normal to a plane containing the directions of movement of the drive elements 7, 12. The drive mechanism may also comprise a gear wheel 9 in meshing engagement with the drive elements. Inserts 13, which may be made of plastics material, may be inserted between the drive members to prevent ingress of dirt between them.
Description
LOCKING MECHANISM
This invention relates to a drive mechanism for a shoot-bolt or a bidirectional espagnolette locking mechanism for use in locking doors and windows to achieve a secure fastening of the door or window at both top and bottom or opposite sides by the operation of a single handle.
A shoot-bolt locking mechanism transmits rotation of the handle into translational movement in opposite directions of two locking bars. The locking bars extend on opposite sides of a central drive mechanism. Rotation of the handle in one direction causes the locking bars to extend from the drive mechanism. Each locking bar has at least one locking pin connected thereto for engagement in respective striker plates to lock the window or door.
Rotation of the handle in the opposite direction retracts the locking bars, unlocking the window or door.
A forcing movement on the window or door in a direction of movement of the locking bars can move the locking bars to disengage the locking pins from their striker plates. Since the two locking bars are connected via the drive mechanism unlocking of one locking bar also tends to unlock the other locking bar. A forcing movement applied alternately in each of the directions of movement of the locking bars can completely unlock the shoot-bolt locking mechanism.
A recent development in the art has been the bi- directional espagnolette locking mechanism. Bi-directional espagnolette locking mechanisms typically comprise two locking bars each extending on both sides of a central drive transfer mechanism. Rotation of a handle causes simultaneous translatory movement of the locking bars in opposing substantially parallel directions. Locking pins are connected to both of the locking bars and are arranged in pairs on both sides of the drive mechanism.
Displacement of the locking bars causes each pair of locking pins to move towards one another into a striker plate upon rotation of the handle to lock the locking mechanism, and rotation of the handle in the opposite direction moves each pair of locking pins away from one another to unlock the mechanism.
Bi-directional espagnolette locking mechanisms are considerably more secure than shoot-bolt mechanisms since a force applied to unlock one of the locking pins on one of the pairs of locking pins tends to further engage the other locking pin of the other pair of locking pins in its respective striker plate. However, repeated forcing, similar to that described with respect to the shoot-bolt locking mechanism above, has been shown to eventually unlock the bi-directional espagnolette locking mechanism.
It is therefore an object of the present invention to provide a drive mechanism for either a shoot-bolt or a bi directional espagnolette locking mechanism which is less susceptible to being forced.
According to the present invention a drive mechanism comprises a first drive element for connection to a first locking bar extending on one or both sides of the drive mechanism, a second drive element for connection to a second locking bar extending on another or both sides of the drive mechanism, an arm for connection to a rotatable handle, the arm having a pin engagable in an elongate slot formed in the first or second drive elements, the enlongate slot having a recess at one end, and, means to convert rotary movement of the handle into simultaneous translatory movement of the first and second drive elements in opposing substantially parallel directions to move the locking bars between locked and unlocked positions, wherein, when the first and second drive elements are positioned such that the locking bars are in the locked position, in response to a force applied to one of the drive elements in the direction to unlock the locking bars, the pin enters the recess to lock the drive elements in position and prevent rotation of the arm.
The drive mechanism according to the present invention for use in a shootbolt or a bi-directional espagnolette locking mechanism is, in use, accommodated in a groove of a frame or movable leaf of a window or door. It is therefore desirable for the mechanism to be as compact as possible. Extruded uPVC frames are generally of standard dimensions, particularly in the width-wise direction and so the drive mechanism preferably fits in a standard "euro- groove" of the frame.
In order to provide a compact locking mechanism, the drive mechanism preferably has a slot elongated in a direction normal to a plane containing the directions of movement of the drive elements. In a similar manner the drive mechanism preferably further comprises a gear wheel between the drive elements in meshing engagement with the drive elements so that movement of one of the drive elements through the drive mechanism causes movement of the other of the driving elements in the opposing substantially parallel direction. Further preferably the gear wheel is rotatable about an axis normal to the plane containing the directions of movement of the drive elements. In order to increase the throw of the locking bars but without substantially increasing the dimension of the drive mechanism, two gear wheels are preferably provided between the drive elements, the gear wheels being rotatable about spaced axes.
The drive elements and the arm are preferably housed in a housing. The housing is preferably formed to accept the two gear wheels and the arm in recesses to provide a strong compact construction. The drive mechanism is preferably constructed so that all of the component parts may be assembled from one direction.
Inserts may be provided between the drive members to prevent ingress of dirt between them. The inserts are preferably made of plastics material.
According to another aspect of the invention a shoot- bolt locking mechanism including the drive mechanism according to the present invention also includes a first locking bar connected to the first drive element and extending on one side of the drive mechanism, and a second locking bar connected to the second drive element extending on another side of the drive mechanism, the locking bars each having at least one locking pin connected thereto.
According to a further aspect of the present invention a bi-directional espagnolette locking mechanism including the drive mechanism according to the present invention further includes first and second locking bars connected to the first and second drive elements, respectively, the locking bars each extending, and having at least one locking pin connected thereto, on both sides of the drive mechanism.
The bi-directional espagnolette locking mechanism according to the present invention preferably has the first locking bar lying nearest the drive mechanism conversion means on the one side of the drive mechanism, and lying further therefrom on the other side of the drive mechanism such that the first and second locking bars cross-over inside the drive mechanism. It should also be noted that the cross-over of locking bars in the drive mechanism of an espagnolette locking mechanism is not limited to the drive mechanism described herein and may be employed in bi directional espagnolette locking mechanisms having other drive mechanisms such as those disclosed in co-pending application GB0401623.4 According to a yet further aspect of the present invention either the shoot-bolt locking mechanism according to the present invention or the bi- directional espagnolette locking mechanism according to the present invention is connected to one of the movable leaf and the fixed frame, and the other of the movable leaf in the fixed frame has striker plates connected thereto, each striker plate cooperating with a locking pin of the locking mechanism.
Particular embodiments of the present invention will now be described with reference to the accompanying drawings, in which: Figure 1 is an exploded perspective view of the drive mechanism in accordance with the present invention; Figure 2 is a side elevation of a shoot-bolt locking mechanism according to the present invention having the drive mechanism; Figure 3 is a side elevation of a bi-directional espagnolette locking mechanism according to the present invention having the drive mechanism; Figure 4 is an exploded perspective view of a bi directional espagnolette locking mechanism according to the present invention having the drive mechanism; 15Figure 5 is another exploded perspective view of the mechanism of Figure 4; Figure 6 is an exploded perspective view of a shoot bolt locking mechanism according to the present invention having the drive mechanism; 20Figures 7a to 7c are cross-section views of the drive mechanism during operation; and, Figures 8a to 8h are schematic diagrams showing the movement of the pin in the elongate slot during locking, unlocking and with the pin engaging the recess in the slot to prevent unlocking.
The drive mechanism shown in Figure 1 comprises a first housing portion 1 and a second housing portion 2. An arm 3 has a square hole 4 for accepting a handle (not shown). The arm 3 further has a pin 5 protruding from one end thereof. The pin 5 engages in a slot 6 formed in a first drive element 7. The arm 3 rotates about an axis, passing through the centre of the square hole 4, in a recess 8 formed in the housing 1, 2. By connecting the handle to the hole 4 and rotating the handle, the arm 3 rotates causing the pin 5 to move in slot 6. Rotation of the handle causes translatory movement of the first drive element 7 in the housing 1, 2.
A pair of gear wheels 9 are located in recesses 10 formed in the housing 1, 2. The gear wheels 9 are in meshing engagement with racks 11 formed on both the first drive element 7 and a second drive element 12. Translatory movement of the first drive element 7 causes translatory movement of the second drive element 12 in an opposing substantially parallel direction. A pair of plastics inserts 13 are located between the first and second drive elements 7, 12 to prevent ingress of dirt therebetween.
To provide a compact drive mechanism the pin 5 moves through an arc so that the slot 6 has a dimension in its elongate direction which is as small as possible to achieve adequate throw of the first and second drive elements 7, 12. The arc corresponds to an approximate 1/4 turn of the handle. The elongate slot 6 has a recess 14 formed at one end for cooperating with the pin 5. The function and exact location of the recess 14 will be described in more detail later.
The drive mechanism 15 may be used in a shoot-bolt locking mechanism as shown in Figure 2 or in a bi- directional espagnolette bolt locking mechanism as shown in Figure 3. Turning first to Figure 2, a shoot-bolt locking mechanism 20 has the drive mechanism 15 and has a first locking bar 16 and a second locking bar 17 protruding therefrom. The first locking bar 16 is connected to the first drive element 7 and a second locking bar 17 is connected to the second drive element 12. Each of the first and second locking bars 16, 17 have a locking pin 18, 19, respectively, connected thereto. Each locking bar 16, 17 may have more than one locking pin 18,19.
The first and second locking bars 16, 17 move adjacent a base plate 21 having elongate slots formed therein so that the locking pins 18, 19 can protrude therethrough and are permitted to move as the locking bars 16, 17 move during locking and unlocking of the shoot-bolt locking mechanism 20. Arrows shown in Figure 2 adjacent the locking pins 18, 19 indicate the directions of locking and unlocking denoted by solid lines and broken lines, respectively.
Turning next to Figure 3, a bi-directional espagnolette locking mechanism 22 is shown having the drive mechanism 15. A first locking bar 16 extends on both sides of the drive mechanism 15, the locking bar 16 having locking pins 18 connected thereto. A second locking bar 17 also extends on both sides of the drive mechanism 15 and has locking pins 19 connected thereto. Pairs of locking pins 18, 19 are formed on either side of the drive mechanism 15.
The first and second locking bars are connected to the first and second drive elements 7, 12 of the drive mechanism 15. Rotation of the handle fitted in the hole 4 of the drive mechanism 15 causes simultaneous translatory movement of the locking bars 16, 17 such that the pairs of locking pins 18, 19 move towards one another in the direction of the solid arrows shown in Figure 3 upon locking and move away from one another in the direction of the broken arrows upon unlocking.
A particular embodiment of a bi-directional espagnolette locking mechanism is shown in expanded perspective view in Figure 4. The components of the drive mechanism 15 are displayed exactly as shown in Figure 1.
The first drive element 7 is connected to the first locking bar portions 16a and 16b. An eccentric locking pin 28 is connected to each portion 16a, 16b of the first locking bar. The second drive element 12 is connected to second locking bar portions 17a and 17b. The second locking bar portions 17a, 17b are connected to straight locking pins 29. Pairs of locking pins 28, 29 are provided at the centre and at either end of the bi-directional espagnolette locking mechanism 22.
Locking bar portions 16b and 17b lie adjacent the base plate 21 and locking bar portions 17a and 16a lie adjacent locking bar portions 16b and 17b, respectively. The base plate 21 and the first and second locking bars 16, 17 are also contained in the housing 1, 2. Cut-away portions of the first and second drive elements 7,12 engage with the locking bar portions 16a, 16b, 17a, 17b and the drive elements are formed so that the arrangement of the locking bar portions achieves a crossover arrangement as shown in Figure 4.
The construction of the bi-directional espagnolette locking mechanism shown in Figure 4 provides an improvement over that shown in Figure 3 since the crossover construction of the first and second locking bars 16, 17 negates the requirement for a bent portion in either the first or second locking bars 16, 17 as shown in Figure 3.
As a result locking bar portions lob, 17b are supported along their entire length by base plate 21 and locking bar portions 16a, 17a are supported along their entire length by locking bar portions 17b, 16b, respectively. A stronger construction is thereby provided. Also by this construction, locking bar portions 16a, 16b may be fabricated identical to locking bar portions 17a, 17b, thus saving on manufacturing costs. Further, since locking bar portions 17b, 16b are longer than locking bar portions 16a, 17a, the rivet locations to secure locking pins at either end of the locking mechanism are exposed enabling easier manufacture and maintenance.
Figure 5 shows the bi-directional espagnolette locking mechanism of Figure 4 ordered to group the locking bar portions 16a, 16b with the first drive element 7, and the locking bar portions 17a, 17b with the second drive element 12. The cross-over construction is thus more clearly illustrated.
A particular embodiment of a shoot-bolt locking mechanism is shown in expanded perspective view in Figure 6. The components of the drive mechanism 15 are displayed exactly as shown in Figure 1. The drive elements 7, 12 are connected to the locking bars 16, 17 as described with reference to Figure 2. The locking bars 16, 17 each have a three component construction such that locking bar 16 is formed of locking bar portions 16a, lob, 16c, and locking bar 17 is formed of locking bar portions 17a, 17b, 17c.
The first drive element 7 is also connected to a central locking bar 32, and drive element 12 is also connected to a central locking bar 33. Central locking bars 32, 33 have one of a concentric and an eccentric locking pin 28, 29 connected thereto as described with reference to Figure 4.
The shoot-bolt locking mechanism has shoot-bolt keeps 34 through which ends of locking bar portions 16c, 17c pass to provide greater security. The locking bars 16, 17 are adjustable by cutting the length of the locking bar portions 16b, 17b to length and engaging locking bar portions 16b, 17b with locking bar portions 16a, 17a using the teeth shown.
Figures 7a to 7c show the movement of locking pin 5 in slot 6 during unlocking, locking and engaging the recess 14 to prevent unlocking. Figures 7a and 7b illustrates the direction of movement of the drive element 7 as the arm 3 is moved to the unlocked and locked position, respectively.
The position of the pin 5 in the slot 6 is shown in these configurations. Figure 7c illustrates the pin 5 entering the recess 14 in the slot 6 upon applying a forcing movement to unlock the mechanism. The arm 3 does not rotate as the pin 5 enters the recess although the drive element 7 moves a small distance under the forcing movement.
Figures 8a to 8h show the movement of the pin 5 in the slot 6 as the arm 3 rotates, moving the first drive element 7. The pin shown in Figure 8a moves from a first position shown in full line and bears on surface 30 of the slot 6.
As the arm 3 is rotated about the axis through the centre of the hole 4 the pin 5 moves along surface 30 of the slot 6 and forces the first drive element 7 in the direction shown by the arrow in Figure 8a. Once the pin 5 is approximately halfway through a 1/4 turn of the handle, the pin 5 is in the position shown in Figure 8b. The pin 5 continues to move along surface 30 as shown by broken lines as the handle completes its quarter turn and continues to force the first drive element 7 in the direction shown in Figure 8b.
Figure 8c shows the pin 5 when the first drive element 7 is in the locked position. A force applied to the drive element 7 either directly or through meshing engagement with the second drive element 12 via the gear wheels 9 and the racks 11, causes the pin 5 to enter the recess 14 of the slot 6 as shown in Figure ad. The position of the pin in Figures 8c and ad is identical with respect to the housing 1 and 2 of the drive mechanism, however the position of the slot 6 has moved due to the force applied to the first drive element 7 in the direction shown in the arrow of Figure 8d. Since the pin 5 has not moved between Figures 8c and ad no rotation of the handle in a direction of unlocking the locking mechanism occurs as the pin 5 enters the recess 14. When the pin 5 is located in the recess 14, a force applied to the drive element 7 in the direction of the arrow shown in Figure 8d cannot move the pin 5 out of the recess 14 and so unlocking of the locking mechanism 20, 22 is not possible.
To unlock the locking mechanism 20, 22 the pin may be moved from either of the positions shown in Figure Be, i.e. located inside or outside the recess 14, such that rotation of the handle causes the pin 5 to move as shown in Figure 8f thus moving along a surface 31 of the slot 6 forcing the first drive element 7 to move in the direction of the arrow shown in Figure Of. When the handle is approximately halfway through its 1/4 turn during unlocking the pin 5 is in the position shown in Figure 8g and upon further rotation of the handle to the fully unlocked position the pin moves to the position shown in Figure 8h.
The pin 5 moving in slot 6 described provides greater mechanical advantage at the beginning and end of its travel to reduce the amount of effort required for a user to operate the locking mechanisms described.
From the above description it becomes clear that by providing the recess 14 in the slot 6 a force applied in the direction of unlocking either of the drive elements 7, 12 cannot unlock the locking mechanisms 20 or 22 thus achieving greater security.
Claims (13)
1. A drive mechanism for a shoot-bolt or a bi-directional espagnolette locking mechanism for use in locking a movable leaf into a surrounding fixed frame, the drive mechanism comprising: a first drive element for connection to a first locking bar extending on one or both sides of the drive mechanism; a second drive element for connection to a second locking bar extending on another or both sides of the drive mechanism; an arm for connection to a rotatable handle, the arm having a pin engagable in an elongate slot formed in the first or second drive elements, the elongate slot having a recess at one end; and, means to convert rotary movement of the handle into simultaneous translatory movement of the first and second drive elements in opposing substantially parallel directions to move the locking bars between locked and unlocked positions, wherein, when the first and second drive elements are positioned such that the locking bars are in the locked position, in response to a force applied to one of the drive elements in a direction to unlock the locking bars, the pin enters the recess to lock the drive elements in position and prevent rotation of the handle.
2. A drive mechanism according to claim 1, wherein the slot is elongated in a direction normal to a plane containing the directions of movement of the drive elements.
3. A drive mechanism according to claim 1 or claim 2, further comprising a gear wheel between the drive elements being in meshing engagement with the drive elements so that movement of one of the drive elements through the drive mechanism causes movement of the other of the driving elements in the opposing substantially parallel direction.
4. A drive mechanism according to claim 3, wherein the gear wheel is rotatable about an axis normal to a plane containing the directions of movement of the drive elements.
5. A drive mechanism according to claim 3 or claim 4, wherein two said gear wheels are provided between the drive elements, the gear wheels being rotatable about spaced axes.
6. A drive mechanism according to any one of the preceding claims, wherein the drive elements and the arm are housed in a housing.
7. A drive mechanism according to claim 6 when dependent on any one of claims 3 to 5, wherein the gear wheel is rotatable in a recess formed in the housing.
8. A drive mechanism according to any one of the preceding claims, wherein inserts are provided between the drive members to prevent ingress of dirt therebetween.
9. A shoot-bolt locking mechanism comprising the drive mechanism according to any one of the preceding claims, wherein the first drive element is connected to a first locking bar extending on one side of the drive mechanism, and the second drive element is connected to a second locking bar extending on another side of the drive mechanism, the locking bars each having at least one locking pin connected thereto.
10. A bi-directional espagnolette locking mechanism comprising the drive mechanism according to any one of claims 1 to 8, wherein the first and second drive elements are connected to first and second locking bars, respectively, the locking bars each extending, and having at least one locking pin connected thereto, on both sides of the drive mechanism.
11. A bi-directional espagnolette locking mechanism according to claim 10, wherein the first locking bar lies nearest the drive mechanism conversion means on the one side of the drive mechanism, and lies furthest therefrom on the other side of the drive mechanism, such that the first and second locking bars "cross-over" inside the drive mechanism.
12. A moveable leaf and a fixed frame in combination, wherein one of the movable leaf and the fixed frame has either the shoot-bolt locking mechanism according to claim 9, or the bi-directional espagnolette locking mechanism according to claim 10 or claim 11 connected thereto, and the other has striker plates connected thereto, each striker plate cooperating with a locking pin of the locking mechanism.
13. A drive mechanism, a shoot-bolt locking mechanism, a bi-directional espagnolette locking mechanism, or a combination as described with reference to the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0413512A GB2415226A (en) | 2004-06-16 | 2004-06-16 | Shoot-bolt or bi-directional espagnolette locking mechanism comprising pin and slot to prevent handle rotation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0413512A GB2415226A (en) | 2004-06-16 | 2004-06-16 | Shoot-bolt or bi-directional espagnolette locking mechanism comprising pin and slot to prevent handle rotation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB0413512D0 GB0413512D0 (en) | 2004-07-21 |
| GB2415226A true GB2415226A (en) | 2005-12-21 |
Family
ID=32750046
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0413512A Withdrawn GB2415226A (en) | 2004-06-16 | 2004-06-16 | Shoot-bolt or bi-directional espagnolette locking mechanism comprising pin and slot to prevent handle rotation |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2415226A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202006011280U1 (en) * | 2006-07-21 | 2007-11-29 | Gluske-Bkv Gmbh | Locking device for window or door leaves |
| DE202012104527U1 (en) * | 2012-11-22 | 2014-02-27 | Maco Technologie Gmbh | Fitting for windows, doors or the like |
| GB2564755A (en) * | 2017-05-19 | 2019-01-23 | Era Home Security Ltd | Twin cam espagnolette |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2134170A (en) * | 1983-01-28 | 1984-08-08 | Norcros Investments Ltd | Door fastening assembly |
| GB2246807A (en) * | 1990-08-06 | 1992-02-12 | Window Machinery Sales | Security means for bolt mechanism |
| GB2270343A (en) * | 1992-09-05 | 1994-03-09 | Parkes Josiah & Sons Ltd | Multi point door lock |
| GB2398829A (en) * | 2003-01-28 | 2004-09-01 | Nico Mfg Ltd | Bi-directional espagnolette bolt |
-
2004
- 2004-06-16 GB GB0413512A patent/GB2415226A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2134170A (en) * | 1983-01-28 | 1984-08-08 | Norcros Investments Ltd | Door fastening assembly |
| GB2246807A (en) * | 1990-08-06 | 1992-02-12 | Window Machinery Sales | Security means for bolt mechanism |
| GB2270343A (en) * | 1992-09-05 | 1994-03-09 | Parkes Josiah & Sons Ltd | Multi point door lock |
| GB2398829A (en) * | 2003-01-28 | 2004-09-01 | Nico Mfg Ltd | Bi-directional espagnolette bolt |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202006011280U1 (en) * | 2006-07-21 | 2007-11-29 | Gluske-Bkv Gmbh | Locking device for window or door leaves |
| DE202012104527U1 (en) * | 2012-11-22 | 2014-02-27 | Maco Technologie Gmbh | Fitting for windows, doors or the like |
| GB2564755A (en) * | 2017-05-19 | 2019-01-23 | Era Home Security Ltd | Twin cam espagnolette |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0413512D0 (en) | 2004-07-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |