CH301288A - Alarm device responsive to temperature changes. - Google Patents

Alarm device responsive to temperature changes.

Info

Publication number
CH301288A
CH301288A CH301288DA CH301288A CH 301288 A CH301288 A CH 301288A CH 301288D A CH301288D A CH 301288DA CH 301288 A CH301288 A CH 301288A
Authority
CH
Switzerland
Prior art keywords
alarm device
temperature changes
device responsive
responsive
changes
Prior art date
Application number
Other languages
German (de)
Inventor
Limited John Morris Sons
Morris Junior James
Original Assignee
John Morris & Sons Limited
Morris Junior James
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 John Morris & Sons Limited, Morris Junior James filed Critical John Morris & Sons Limited
Publication of CH301288A publication Critical patent/CH301288A/en

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)
CH301288D 1950-12-04 1951-11-27 Alarm device responsive to temperature changes. CH301288A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB301288X 1950-12-04
GB251051X 1951-10-25

Publications (1)

Publication Number Publication Date
CH301288A true CH301288A (en) 1954-08-31

Family

ID=26257500

Family Applications (1)

Application Number Title Priority Date Filing Date
CH301288D CH301288A (en) 1950-12-04 1951-11-27 Alarm device responsive to temperature changes.

Country Status (6)

Country Link
US (1) US2697215A (en)
BE (1) BE507587A (en)
CH (1) CH301288A (en)
DE (1) DE969456C (en)
FR (1) FR1056104A (en)
NL (2) NL85577C (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3071713A (en) * 1959-01-20 1963-01-01 Grinnell Corp Automatic rate of rise-responsive fire protection circuit
US3188617A (en) * 1962-01-03 1965-06-08 Specialties Dev Corp Condition responsive system with prevention of false indication
US3350702A (en) * 1965-01-26 1967-10-31 Ruth A Herman Infrared detection system for fault isolation and failure prediction
DE1566727B1 (en) * 1967-09-08 1972-03-09 Rheinische Braunkohlenw Ag Temperature measurement arrangement for a fire alarm system
DE2627357C3 (en) * 1976-06-18 1981-05-27 Preussag Ag Feuerschutz, 2060 Bad Oldesloe Temperature detector
US8696196B2 (en) * 2008-12-22 2014-04-15 Embraer S.A. Bleed leakage detection system and method

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1326304A (en) * 1919-12-30 Automatic fire
DE146034C (en) *
US1718857A (en) * 1919-12-22 1929-06-25 Elliott Otto Breedon Automatic fire alarm
DE633386C (en) * 1926-04-26 1936-07-28 Charles Edward Adrianus Maitla Circuit arrangement for alarm systems
BE345223A (en) * 1926-09-11
US2060215A (en) * 1931-05-05 1936-11-10 American District Telegraph Co Electric temperature and burglar alarm system
US2074262A (en) * 1934-09-22 1937-03-16 Kidde & Co Walter Supervised electric alarm system
US2041114A (en) * 1934-11-14 1936-05-19 Louis F B Carini Electrical discharge tube circuits
DE735401C (en) * 1939-07-29 1943-05-14 Walther & Cie Ag Protection circuit for fire alarms with differential thermocouples
DE895416C (en) * 1942-04-30 1953-11-02 Siemens Ag Fire or danger alarm system, especially for ships
US2486753A (en) * 1946-03-29 1949-11-01 Union Switch & Signal Co Hot bearing detector
DE867819C (en) * 1950-04-28 1953-02-19 Normalzeit G M B H Circuit arrangement for the transmission of messages from locally distributed reporting points to a central reporting point

Also Published As

Publication number Publication date
DE969456C (en) 1958-06-04
US2697215A (en) 1954-12-14
BE507587A (en)
FR1056104A (en) 1954-02-24
NL85577C (en)
NL165764B (en)

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