GB250589A - Alarm contrivances for fire alarm and other purposes - Google Patents

Alarm contrivances for fire alarm and other purposes

Info

Publication number
GB250589A
GB250589A GB9147/26A GB914726A GB250589A GB 250589 A GB250589 A GB 250589A GB 9147/26 A GB9147/26 A GB 9147/26A GB 914726 A GB914726 A GB 914726A GB 250589 A GB250589 A GB 250589A
Authority
GB
United Kingdom
Prior art keywords
alarm
battery
fire
galvanometer
pointer
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
GB9147/26A
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.)
Thermosonus SA
Original Assignee
Thermosonus SA
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 Thermosonus SA filed Critical Thermosonus SA
Publication of GB250589A publication Critical patent/GB250589A/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)
GB9147/26A 1925-04-07 1926-04-07 Alarm contrivances for fire alarm and other purposes Expired GB250589A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR250589X 1925-04-07

Publications (1)

Publication Number Publication Date
GB250589A true GB250589A (en) 1926-12-30

Family

ID=8884046

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9147/26A Expired GB250589A (en) 1925-04-07 1926-04-07 Alarm contrivances for fire alarm and other purposes

Country Status (2)

Country Link
BE (1) BE333764A (enrdf_load_stackoverflow)
GB (1) GB250589A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2632885A (en) * 1948-07-21 1953-03-24 Grinnell Corp Fire detection apparatus
US2758294A (en) * 1954-01-25 1956-08-07 Grinnell Corp Heat responsive conductive cable
US2827624A (en) * 1955-10-27 1958-03-18 Specialties Dev Corp Electrical network for detecting heat due to various causes
US2904995A (en) * 1953-12-10 1959-09-22 Illinois Testing Laboratories Dew-point detecting device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2632885A (en) * 1948-07-21 1953-03-24 Grinnell Corp Fire detection apparatus
US2904995A (en) * 1953-12-10 1959-09-22 Illinois Testing Laboratories Dew-point detecting device
US2758294A (en) * 1954-01-25 1956-08-07 Grinnell Corp Heat responsive conductive cable
US2827624A (en) * 1955-10-27 1958-03-18 Specialties Dev Corp Electrical network for detecting heat due to various causes

Also Published As

Publication number Publication date
BE333764A (enrdf_load_stackoverflow)

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