GB644542A - An improved fire-detection apparatus - Google Patents

An improved fire-detection apparatus

Info

Publication number
GB644542A
GB644542A GB19506/48A GB1950648A GB644542A GB 644542 A GB644542 A GB 644542A GB 19506/48 A GB19506/48 A GB 19506/48A GB 1950648 A GB1950648 A GB 1950648A GB 644542 A GB644542 A GB 644542A
Authority
GB
United Kingdom
Prior art keywords
wires
fire
arms
bridge
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
GB19506/48A
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.)
Mather and Platt Ltd
Original Assignee
Mather and Platt 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 Mather and Platt Ltd filed Critical Mather and Platt Ltd
Publication of GB644542A publication Critical patent/GB644542A/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-Detection Mechanisms (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
GB19506/48A 1948-07-21 1948-07-21 An improved fire-detection apparatus Expired GB644542A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB281300X 1948-07-21

Publications (1)

Publication Number Publication Date
GB644542A true GB644542A (en) 1950-10-11

Family

ID=10270726

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19506/48A Expired GB644542A (en) 1948-07-21 1948-07-21 An improved fire-detection apparatus

Country Status (5)

Country Link
US (1) US2632885A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE490155A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH281300A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR989541A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB644542A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2861159A (en) * 1953-08-31 1958-11-18 Du Pont Resistance probe for level control
US2904995A (en) * 1953-12-10 1959-09-22 Illinois Testing Laboratories Dew-point detecting device
US2824278A (en) * 1954-10-01 1958-02-18 Honeywell Regulator Co Liquid level sensing apparatus
US2945218A (en) * 1955-05-19 1960-07-12 Bailey Meter Co Monitoring system including a magnetic amplifier
US2896057A (en) * 1956-10-29 1959-07-21 Statham Instrument Inc Temperature control device
US3023398A (en) * 1958-04-09 1962-02-27 Charles L Siegert Infra-red radiation monitor
US3109165A (en) * 1958-09-05 1963-10-29 Specialties Dev Corp Intruder detecting system
US3643245A (en) * 1970-03-11 1972-02-15 Kidde & Co Walter Discrete heat-detecting system using a thermistor detecting element
US4325145A (en) * 1978-04-06 1982-04-13 Corbett Marshall J Thermal detection system

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR611455A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1926-09-29
BE333764A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1925-04-07
FR632050A (fr) * 1926-07-06 1927-12-30 Système de signalisation à distance
US2236891A (en) * 1937-07-17 1941-04-01 Gamewell Co Fire alarm system

Also Published As

Publication number Publication date
CH281300A (fr) 1952-02-29
US2632885A (en) 1953-03-24
BE490155A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR989541A (fr) 1951-09-10

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