GB1550338A - Visual alarm system - Google Patents

Visual alarm system

Info

Publication number
GB1550338A
GB1550338A GB3109175A GB3109175A GB1550338A GB 1550338 A GB1550338 A GB 1550338A GB 3109175 A GB3109175 A GB 3109175A GB 3109175 A GB3109175 A GB 3109175A GB 1550338 A GB1550338 A GB 1550338A
Authority
GB
United Kingdom
Prior art keywords
alarm system
visual alarm
visual
alarm
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
GB3109175A
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.)
REDDING RJ
Original Assignee
REDDING RJ
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 REDDING RJ filed Critical REDDING RJ
Priority to GB3109175A priority Critical patent/GB1550338A/en
Publication of GB1550338A publication Critical patent/GB1550338A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/30—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp
    • H05B41/34—Circuit arrangements in which the lamp is fed by pulses, e.g. flash lamp to provide a sequence of flashes
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
    • E21F17/18—Special adaptations of signalling or alarm devices
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
GB3109175A 1976-07-07 1976-07-07 Visual alarm system Expired GB1550338A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3109175A GB1550338A (en) 1976-07-07 1976-07-07 Visual alarm system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3109175A GB1550338A (en) 1976-07-07 1976-07-07 Visual alarm system

Publications (1)

Publication Number Publication Date
GB1550338A true GB1550338A (en) 1979-08-15

Family

ID=10317827

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3109175A Expired GB1550338A (en) 1976-07-07 1976-07-07 Visual alarm system

Country Status (1)

Country Link
GB (1) GB1550338A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2165977A (en) * 1984-10-04 1986-04-23 Hurtig Karl W Naval rescue optical signalling device
GB2172419A (en) * 1985-03-06 1986-09-17 Kobishi Electric Co Ltd Audible and visible alarm
DE10004269B4 (en) * 1999-02-05 2006-11-23 Fhf Funke + Huster Fernsig Gmbh flash light

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2165977A (en) * 1984-10-04 1986-04-23 Hurtig Karl W Naval rescue optical signalling device
GB2172419A (en) * 1985-03-06 1986-09-17 Kobishi Electric Co Ltd Audible and visible alarm
US4742328A (en) * 1985-03-06 1988-05-03 Kobishi Electric Co., Ltd. Audio and visual alarm device
DE10004269B4 (en) * 1999-02-05 2006-11-23 Fhf Funke + Huster Fernsig Gmbh flash light

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Legal Events

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