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GB1253977A - Improvements in and relating to electric source provision for fire alarm systems - Google Patents

Improvements in and relating to electric source provision for fire alarm systems

Info

Publication number
GB1253977A
GB1253977A GB5462468A GB5462468A GB1253977A GB 1253977 A GB1253977 A GB 1253977A GB 5462468 A GB5462468 A GB 5462468A GB 5462468 A GB5462468 A GB 5462468A GB 1253977 A GB1253977 A GB 1253977A
Authority
GB
United Kingdom
Prior art keywords
source
alarm
light
fire
relay
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
GB5462468A
Other languages
English (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.)
Nittan Co Ltd
Original Assignee
Nittan Co 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 Nittan Co Ltd filed Critical Nittan Co Ltd
Publication of GB1253977A publication Critical patent/GB1253977A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/06—Electric actuation of the alarm, e.g. using a thermally-operated switch

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire Alarms (AREA)
  • Fire-Detection Mechanisms (AREA)
GB5462468A 1967-11-25 1968-11-18 Improvements in and relating to electric source provision for fire alarm systems Expired GB1253977A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9866667U JPS4518177Y1 (xx) 1967-11-25 1967-11-25

Publications (1)

Publication Number Publication Date
GB1253977A true GB1253977A (en) 1971-11-17

Family

ID=14225818

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5462468A Expired GB1253977A (en) 1967-11-25 1968-11-18 Improvements in and relating to electric source provision for fire alarm systems

Country Status (6)

Country Link
US (1) US3623050A (xx)
JP (1) JPS4518177Y1 (xx)
BE (1) BE724390A (xx)
FR (1) FR1597628A (xx)
GB (1) GB1253977A (xx)
NL (1) NL6816468A (xx)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3686475A (en) * 1971-03-04 1972-08-22 Gen Motors Corp Control circuit for a liquid vaporizing tool
JPS5637597B2 (xx) * 1973-02-28 1981-09-01
JPS516304U (xx) * 1974-07-03 1976-01-17

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US524374A (en) * 1894-08-14 Charles bernhardt
US3258758A (en) * 1966-06-28 Two-level threshold detectors
US2769121A (en) * 1953-08-13 1956-10-30 Mcdermott Controls Inc Electrical instruments
US3225341A (en) * 1964-01-20 1965-12-21 Potter Electric Signal Company Signalling apparatus including remote battery recharging system
US3396386A (en) * 1965-11-08 1968-08-06 Honeywell Inc Radiation detecting apparatus with self-check
US3500394A (en) * 1966-12-23 1970-03-10 Honeywell Inc Control apparatus
US3521276A (en) * 1967-04-06 1970-07-21 Pyrotronics Inc Supervised alarm circuit

Also Published As

Publication number Publication date
DE1810070A1 (de) 1969-08-07
FR1597628A (xx) 1970-06-29
DE1810070B2 (de) 1972-08-24
BE724390A (xx) 1969-05-02
US3623050A (en) 1971-11-23
JPS4518177Y1 (xx) 1970-07-24
NL6816468A (xx) 1969-05-28

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