| 摘要 |
<p>1501349 Firefighting systems SECURITY PATROLS CO Ltd 14 June 1976 [12 Jan 1976] 24537/76 Heading A5A An automatic fire-extinguishing system comprises portable fire extinguisher Nos. 1, 2, 3.., each fire extinguisher comprising a housing 1, a pressure vessel 2 for extinguishant gas, a valve 4, extinguishant conduit 3 and a valve controller 8, fire sensors 9 which, on detection of a fire, actuate controller 8 via relays 10, 11 to open valves 4. Preferably the controller S is detachably mounted on one of the extinguishers. Pressure detecting switches 5 and gas flow detecting switches 6 are also provided on each extinguisher.</p> |
