Apparatus for extinguishing fires; automatic fire extinguishing apparatus; fire extinguishers; fire extinguishers for domestic use; fire extinguishers for use in land vehicles; fire extinguishing apparatus; fire extinguishing apparatus incorporating hoses; fire extinguishing installations; fire extinguishing instruments; fire extinguishing vehicles; sprayers (automatic installations) for fire extinguishing; sprayers (installations) for fire extinguishing; sprinkler apparatus (automatic) for fire extinguishing, sprinkler installations for fire extinguishing; sprinkler systems for fire extinguishing; water jets for fire extinguishing purposes