GB2046971B - Security glazing units and signalling systems incorporating them - Google Patents

Security glazing units and signalling systems incorporating them

Info

Publication number
GB2046971B
GB2046971B GB8005593A GB8005593A GB2046971B GB 2046971 B GB2046971 B GB 2046971B GB 8005593 A GB8005593 A GB 8005593A GB 8005593 A GB8005593 A GB 8005593A GB 2046971 B GB2046971 B GB 2046971B
Authority
GB
United Kingdom
Prior art keywords
systems incorporating
glazing units
signalling systems
security glazing
security
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
Application number
GB8005593A
Other versions
GB2046971A (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pilkington Group Ltd
Original Assignee
Pilkington Brothers Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Pilkington Brothers Ltd filed Critical Pilkington Brothers Ltd
Priority to GB8005593A priority Critical patent/GB2046971B/en
Publication of GB2046971A publication Critical patent/GB2046971A/en
Application granted granted Critical
Publication of GB2046971B publication Critical patent/GB2046971B/en
Expired legal-status Critical Current

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
    • G08B13/12—Mechanical actuation by the breaking or disturbance of stretched cords or wires
    • G08B13/126—Mechanical actuation by the breaking or disturbance of stretched cords or wires for a housing, e.g. a box, a safe, or a room
    • 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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B13/00—Burglar, theft or intruder alarms
    • G08B13/18—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength
    • G08B13/181—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems
    • G08B13/183—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems by interruption of a radiation beam or barrier
    • G08B13/186—Actuation by interference with heat, light, or radiation of shorter wavelength; Actuation by intruding sources of heat, light, or radiation of shorter wavelength using active radiation detection systems by interruption of a radiation beam or barrier using light guides, e.g. optical fibres

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Burglar Alarm Systems (AREA)
GB8005593A 1979-03-07 1980-02-19 Security glazing units and signalling systems incorporating them Expired GB2046971B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8005593A GB2046971B (en) 1979-03-07 1980-02-19 Security glazing units and signalling systems incorporating them

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7908047 1979-03-07
GB8005593A GB2046971B (en) 1979-03-07 1980-02-19 Security glazing units and signalling systems incorporating them

Publications (2)

Publication Number Publication Date
GB2046971A GB2046971A (en) 1980-11-19
GB2046971B true GB2046971B (en) 1982-12-08

Family

ID=26270829

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8005593A Expired GB2046971B (en) 1979-03-07 1980-02-19 Security glazing units and signalling systems incorporating them

Country Status (1)

Country Link
GB (1) GB2046971B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109493552A (en) * 2018-10-20 2019-03-19 马成良 A kind of safety alarm system and its working method

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4367460A (en) * 1979-10-17 1983-01-04 Henri Hodara Intrusion sensor using optic fiber
AU550274B2 (en) * 1981-09-18 1986-03-13 Honda Giken Kogyo Kabushiki Kaisha Theftproof device
US4538527A (en) * 1981-10-09 1985-09-03 Pilkington P.E. Limited Security system
IL78728A (en) * 1986-05-08 1990-07-12 Magal Security Systems Ltd Security fence
IL78856A (en) * 1986-05-20 1990-07-12 Magal Security Systems Ltd Sensor for a security fence
IL79582A0 (en) * 1986-07-31 1986-10-31 Charles Moss Construction material with embedded optical fiber
DE3637989A1 (en) * 1986-11-07 1988-05-19 Flachglas Ag ALARM GLASS PANEL FOR A WINDOW OR THE LIKE
US5049855A (en) * 1989-10-24 1991-09-17 Slemon Charles S Security screen system
DE102011003073B4 (en) * 2011-01-24 2013-05-02 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Security system for detecting a break-in attempt on a safety glazing

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109493552A (en) * 2018-10-20 2019-03-19 马成良 A kind of safety alarm system and its working method

Also Published As

Publication number Publication date
GB2046971A (en) 1980-11-19

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee