GB1503319A - Fire protection apparatus - Google Patents

Fire protection apparatus

Info

Publication number
GB1503319A
GB1503319A GB5387274A GB5387274A GB1503319A GB 1503319 A GB1503319 A GB 1503319A GB 5387274 A GB5387274 A GB 5387274A GB 5387274 A GB5387274 A GB 5387274A GB 1503319 A GB1503319 A GB 1503319A
Authority
GB
United Kingdom
Prior art keywords
detonator
thyristor
storage device
capacitor
diode
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
GB5387274A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB5387274A priority Critical patent/GB1503319A/en
Publication of GB1503319A publication Critical patent/GB1503319A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/36—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device
    • A62C37/38—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone
    • A62C37/40—Control of fire-fighting equipment an actuating signal being generated by a sensor separate from an outlet device by both sensor and actuator, e.g. valve, being in the danger zone with electric connection between sensor and actuator

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Stand-By Power Supply Arrangements (AREA)

Abstract

1503319 Electrical detonating circuits R J REDDING 5 Dec 1975 [12 Dec 1974] 53872/74 Heading H2H Apparatus for releasing the extinguishant in a fire extinguisher comprises an eletrically operated detonator 5, an energy storage device 14 and a circuit 6 operative in response to a voltage applied thereto to charge the storage device whilst the applied voltage has one polarity and to discharge the stored energy into the detonator to operate the detonator when the polarity of the applied voltage is changed. When a switch 1 is set to connect the positive supply line to a line 3, the capacitor 14 is charged via a diode 13. On reversing the switch 1, the diode 13 becomes non-conductive and a Zener diode 18 conducts to apply a trigger signal to a thyristor 16. The capacitor discharges through the conductive thyristor and the detonator which explodes to rupture an extinguishant container (not shown). If the capacitor 14 does not become fully charged, a thyristor 20 does not conduct so that the lack of potential at a test terminal 21 may be used to operate an alarm. A number of detonators may be fired simultaneously or in sequence. The storage device 14 may be an electrolytic cell or a nickel-cadmium cell.
GB5387274A 1975-12-05 1975-12-05 Fire protection apparatus Expired GB1503319A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5387274A GB1503319A (en) 1975-12-05 1975-12-05 Fire protection apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5387274A GB1503319A (en) 1975-12-05 1975-12-05 Fire protection apparatus

Publications (1)

Publication Number Publication Date
GB1503319A true GB1503319A (en) 1978-03-08

Family

ID=10469259

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5387274A Expired GB1503319A (en) 1975-12-05 1975-12-05 Fire protection apparatus

Country Status (1)

Country Link
GB (1) GB1503319A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2540387A1 (en) * 1983-02-09 1984-08-10 Sides Device for controlling a fire-fighting installation, and installation comprising it
GB2169460A (en) * 1985-01-04 1986-07-09 Stc Plc Initiator fuse firing circuit
CN106310575A (en) * 2016-08-31 2017-01-11 北京北机机电工业有限责任公司 Signal feedback device for high-pressure extinguishing system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2540387A1 (en) * 1983-02-09 1984-08-10 Sides Device for controlling a fire-fighting installation, and installation comprising it
GB2169460A (en) * 1985-01-04 1986-07-09 Stc Plc Initiator fuse firing circuit
CN106310575A (en) * 2016-08-31 2017-01-11 北京北机机电工业有限责任公司 Signal feedback device for high-pressure extinguishing system

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee