GB1488440A - Window pane - Google Patents
Window paneInfo
- Publication number
- GB1488440A GB1488440A GB52339/75A GB5233975A GB1488440A GB 1488440 A GB1488440 A GB 1488440A GB 52339/75 A GB52339/75 A GB 52339/75A GB 5233975 A GB5233975 A GB 5233975A GB 1488440 A GB1488440 A GB 1488440A
- Authority
- GB
- United Kingdom
- Prior art keywords
- block
- pane
- sheet
- dec
- detector
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/02—Mechanical actuation
- G08B13/04—Mechanical actuation by breaking of glass
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Burglar Alarm Systems (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
1488440 Detecting breakage of window panes SAINT-GOBAIN INDUSTRIES 22 Dec 1975 [24 Dec 1974] 52339/75 Heading G4N A window pane having a tempered glass sheet 1 has an extensometric detector 6 integral with the surface thereof so that on breakage of the pane a signal is provided for operating an alarm or protection device. As shown, the detector 6 is a resistance strain gauge mounted on the bottom face of a block 4 which is bonded at 5 to the sheet 1. The block 4 also contains a second strain gauge 7 identical to gauge 6 but not in contact with the sheet 1, the two gauges being arranged in a bridge, Fig. 2 (not shown), also mounted in block 4. The bridge output is amplified and applied to a relay, Fig. 2 (not shown), via a lead 9. As shown, the pane consists also of a non-tempered glass sheet 3 and a thermoplastic adhesion layer 2.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2461367A DE2461367C3 (en) | 1974-12-24 | 1974-12-24 | Alarm glass pane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1488440A true GB1488440A (en) | 1977-10-12 |
Family
ID=5934542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB52339/75A Expired GB1488440A (en) | 1974-12-24 | 1975-12-22 | Window pane |
Country Status (15)
| Country | Link |
|---|---|
| AT (1) | AT346208B (en) |
| BE (1) | BE837033A (en) |
| BR (1) | BR7508594A (en) |
| CH (1) | CH591128A5 (en) |
| DE (1) | DE2461367C3 (en) |
| DK (1) | DK137872C (en) |
| ES (1) | ES443809A1 (en) |
| FR (1) | FR2296229A1 (en) |
| GB (1) | GB1488440A (en) |
| IE (1) | IE41984B1 (en) |
| IT (1) | IT1051186B (en) |
| LU (1) | LU74099A1 (en) |
| NL (1) | NL7514987A (en) |
| NO (1) | NO139537C (en) |
| SE (1) | SE407475B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3003683A1 (en) * | 1980-02-01 | 1981-08-06 | Vereinigte Glaswerke Gmbh, 5100 Aachen | MULTI-LAYER ALARM GLASS |
| DE19754295C2 (en) * | 1997-12-08 | 2002-12-12 | Claus Baumann | Process for the detection of damage to a glass pane |
| DE202020003859U1 (en) | 2020-09-11 | 2021-12-14 | FLACHGLAS Sülzfeld GmbH | alarm glass arrangement |
| CN114761756A (en) | 2020-11-09 | 2022-07-15 | 法国圣戈班玻璃厂 | Method for producing a vitreous glass pane having a strain gauge |
| DE102021006276A1 (en) | 2021-12-21 | 2023-06-22 | Flachglas Sachsen Gmbh | Multiple pane glass sensor array |
-
1974
- 1974-12-24 DE DE2461367A patent/DE2461367C3/en not_active Expired
-
1975
- 1975-12-18 IT IT30448/75A patent/IT1051186B/en active
- 1975-12-18 SE SE7514379A patent/SE407475B/en unknown
- 1975-12-19 CH CH1654275A patent/CH591128A5/xx not_active IP Right Cessation
- 1975-12-22 DK DK587275A patent/DK137872C/en active
- 1975-12-22 GB GB52339/75A patent/GB1488440A/en not_active Expired
- 1975-12-23 IE IE2821/75A patent/IE41984B1/en unknown
- 1975-12-23 NO NO754382A patent/NO139537C/en unknown
- 1975-12-23 FR FR7539416A patent/FR2296229A1/en active Granted
- 1975-12-23 LU LU74099A patent/LU74099A1/xx unknown
- 1975-12-23 ES ES443809A patent/ES443809A1/en not_active Expired
- 1975-12-23 AT AT979775A patent/AT346208B/en not_active IP Right Cessation
- 1975-12-23 BE BE163078A patent/BE837033A/en unknown
- 1975-12-23 NL NL7514987A patent/NL7514987A/en not_active Application Discontinuation
- 1975-12-23 BR BR7508594*A patent/BR7508594A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NO139537C (en) | 1979-03-28 |
| FR2296229A1 (en) | 1976-07-23 |
| DK137872C (en) | 1978-10-16 |
| IE41984L (en) | 1976-06-24 |
| DK137872B (en) | 1978-05-22 |
| BR7508594A (en) | 1976-08-24 |
| CH591128A5 (en) | 1977-09-15 |
| DE2461367C3 (en) | 1980-08-21 |
| DE2461367A1 (en) | 1976-07-01 |
| IT1051186B (en) | 1981-04-21 |
| NL7514987A (en) | 1976-06-28 |
| FR2296229B1 (en) | 1978-05-19 |
| ES443809A1 (en) | 1977-04-16 |
| SE407475B (en) | 1979-03-26 |
| BE837033A (en) | 1976-06-23 |
| ATA979775A (en) | 1978-02-15 |
| DE2461367B2 (en) | 1977-09-08 |
| DK587275A (en) | 1976-06-25 |
| IE41984B1 (en) | 1980-05-07 |
| SE7514379L (en) | 1976-06-28 |
| LU74099A1 (en) | 1976-11-11 |
| AT346208B (en) | 1978-10-25 |
| NO754382L (en) | 1976-06-25 |
| NO139537B (en) | 1978-12-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |