GB1347489A - Actuating devices for fire extinguishers - Google Patents

Actuating devices for fire extinguishers

Info

Publication number
GB1347489A
GB1347489A GB1347489DA GB1347489A GB 1347489 A GB1347489 A GB 1347489A GB 1347489D A GB1347489D A GB 1347489DA GB 1347489 A GB1347489 A GB 1347489A
Authority
GB
United Kingdom
Prior art keywords
bore
threaded
plunger
axial
aug
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
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.)
Wallop Industries Ltd
Original Assignee
Wallop Industries 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 Wallop Industries Ltd filed Critical Wallop Industries Ltd
Publication of GB1347489A publication Critical patent/GB1347489A/en
Expired legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C13/00Portable extinguishers which are permanently pressurised or pressurised immediately before use
    • A62C13/003Extinguishers with spraying and projection of extinguishing agents by pressurised gas

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

1347489 Pressurised fire extinguishers WALLOP INDUSTRIES Ltd 11 Aug 1971 [12 Aug 1970] 38951/70 Heading A5A A container 1 of pressurised fire extinguishant has outlet 5 sealed by frangible head 6 which is arranged to be shattered by plunger 21 of piston 24 when the latter is propelled along cylinder 23 by ignition of propellant charge 33. Adaptor 7 threaded on neck 2 of container 1 is formed with axial hole 9 and further hole 14 in its side wall. Bore 9 opens out into threaded bore 10 and houses pointed outlet tube 11, which is retained therein by threaded bush 13 and deformable ring 12. Threaded side bore 14 engages threaded portion 15 of housing 16, portion 15 terminating in projecting boss 19 having axial bore 20 for sliding plunger 21. Shear pin 22 passing through boss 19 and plunger 21 normally retains the latter in retracted position. At its rear end bore 20 opens into cylinder 23 in which piston 24, integrally formed with plunger 21, is movable. The rear end of 24 is formed as combustion chamber 26, and radial and axial vents 27, 28 are provided for the combustion gases. Threaded bore 29 in housing 16 engages screw-threaded cartridge unit 30 which has central bore 32 at the leading end of which propellant charge 33 is located and retained by closing disc 34. Fuse head 35 is connected to electric cables 36 which pass through potting 37 and sleeve 38 and form part of a manually or automatically energised circuit, e.g. employing a thermocouple. The electric igniter 35/36 may be replaced by percussion ignition if required.
GB1347489D 1970-08-12 1970-08-12 Actuating devices for fire extinguishers Expired GB1347489A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3895170 1970-08-12

Publications (1)

Publication Number Publication Date
GB1347489A true GB1347489A (en) 1974-02-27

Family

ID=10406701

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1347489D Expired GB1347489A (en) 1970-08-12 1970-08-12 Actuating devices for fire extinguishers

Country Status (1)

Country Link
GB (1) GB1347489A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0004981A1 (en) * 1978-04-25 1979-10-31 Lehavot Cheroshet Closure device for a fire extinguisher
US4188856A (en) * 1977-01-19 1980-02-19 Dynamit Nobel Ag Compressed-gas-actuated switching device
WO1989007962A1 (en) * 1988-02-24 1989-09-08 Alister Leslie Mcculloch Fire extinguisher outlet head
GB2214806A (en) * 1988-02-04 1989-09-13 Fire Fighting Enterprises Frangible-bulb sprinklers

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4188856A (en) * 1977-01-19 1980-02-19 Dynamit Nobel Ag Compressed-gas-actuated switching device
EP0004981A1 (en) * 1978-04-25 1979-10-31 Lehavot Cheroshet Closure device for a fire extinguisher
GB2214806A (en) * 1988-02-04 1989-09-13 Fire Fighting Enterprises Frangible-bulb sprinklers
GB2214806B (en) * 1988-02-04 1992-01-02 Fire Fighting Enterprises Frangible-bulb sprinklers
WO1989007962A1 (en) * 1988-02-24 1989-09-08 Alister Leslie Mcculloch Fire extinguisher outlet head

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees