GB347442A - Means for notifying increased temperature or fire - Google Patents

Means for notifying increased temperature or fire

Info

Publication number
GB347442A
GB347442A GB1021530A GB1021530A GB347442A GB 347442 A GB347442 A GB 347442A GB 1021530 A GB1021530 A GB 1021530A GB 1021530 A GB1021530 A GB 1021530A GB 347442 A GB347442 A GB 347442A
Authority
GB
United Kingdom
Prior art keywords
fire
battery
contact
circuit
wires
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
GB1021530A
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.)
PAUL GERST SENIOR
Original Assignee
PAUL GERST SENIOR
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
Priority to BE369107D priority Critical patent/BE369107A/xx
Application filed by PAUL GERST SENIOR filed Critical PAUL GERST SENIOR
Priority to GB1021530A priority patent/GB347442A/en
Publication of GB347442A publication Critical patent/GB347442A/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)
  • Alarm Systems (AREA)
  • Fire-Detection Mechanisms (AREA)
GB1021530A 1930-03-31 1930-03-31 Means for notifying increased temperature or fire Expired GB347442A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BE369107D BE369107A (lv) 1930-03-31
GB1021530A GB347442A (en) 1930-03-31 1930-03-31 Means for notifying increased temperature or fire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1021530A GB347442A (en) 1930-03-31 1930-03-31 Means for notifying increased temperature or fire

Publications (1)

Publication Number Publication Date
GB347442A true GB347442A (en) 1931-04-30

Family

ID=9963706

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1021530A Expired GB347442A (en) 1930-03-31 1930-03-31 Means for notifying increased temperature or fire

Country Status (2)

Country Link
BE (1) BE369107A (lv)
GB (1) GB347442A (lv)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113870518A (zh) * 2021-10-21 2021-12-31 湖北中腾智能科教有限公司 智慧消防用火灾探测报警器

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113870518A (zh) * 2021-10-21 2021-12-31 湖北中腾智能科教有限公司 智慧消防用火灾探测报警器

Also Published As

Publication number Publication date
BE369107A (lv)

Similar Documents

Publication Publication Date Title
GB347442A (en) Means for notifying increased temperature or fire
US2049321A (en) Protection device
US1909212A (en) Selective control circuit for alarm systems
US2994860A (en) Pulse transmission circuit
GB353627A (en) Burglar and like alarms employing thermionic oscillations
US2186163A (en) Fire alarm system
US2186112A (en) Safety fuse device
GB294980A (en) Improvements in electric remote control systems
GB544226A (en) Improvements in or relating to means for giving warning of the formation of ice on aircraft
US2187507A (en) Burglar alarm system
US1679228A (en) Method and apparatus for testing signaling systems
GB493244A (en) Improvements in thermally actuated switches, relays and apparatus for fire detectionand like purposes
USRE6239E (en) Improvement in electro-magnetic fire-alarm telegraphs for cities
GB334447A (en) Improved method of and apparatus for burglar and fire alarm
US564229A (en) speeb
US432618A (en) Alfred g
US933197A (en) Signaling system.
US1188654A (en) Electrical apparatus.
DE403243C (de) Elektrischer Alarmkontakt fuer Ruhe- und Arbeitsstrombetrieb
DE20302697U1 (de) Warngerät-Modem
GB281987A (en) Improvements relating to electrical remote control and signalling systems
SU29389A1 (ru) Реле дл пожарной сигнализации
US790303A (en) Burglar-alarm.
US1058724A (en) Supervisory signal system.
GB289649A (lv)