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The soda-acid extinguisher was first patented in 1866 by Francois Carlier of France, which mixed a solution of water and sodium bicarbonate with tartaric acid, producing the propellant carbon dioxide (CO 2) gas. A soda-acid extinguisher was patented in the U.S. in 1880 by Almon M. Granger.
The company moved to Grosvenor Gardens, London in 1918, and then to Stoke Newington in 1920, where a factory to manufacture soda-acid and foam fire extinguishers was established. The London General Omnibus Company awarded Pyrene the contract for its fire extinguishers in 1924.
The fire extinguisher worked on the principle of a pressurised CO 2 cartridge being pierced, the pressure inside thus released expanding into the extinguisher body and expelling the contents under pressure. Other types of extinguishers worked by mixing sulphuric acid with a solution of bicarbonate and water-the soda acid extinguisher.
Soda-acid extinguisher Weak water/acid solution inside a pressure vessel, which activates bicarbonate of soda when triggered, expelling "water" (mixture) under pressure from the resulting carbon dioxide. These are obsolete and usually replaced with an APW or multipurpose extinguisher. Soft suction hose, soft sleeve
Sodium bicarbonate (IUPAC name: sodium hydrogencarbonate [9]), commonly known as baking soda or bicarbonate of soda, is a chemical compound with the formula NaHCO 3. It is a salt composed of a sodium cation (Na +) and a bicarbonate anion (HCO 3 −). Sodium bicarbonate is a white solid that is crystalline but often appears as a fine powder.
2006: Ansul cooperated with the U.S. Consumer Product Safety Commission (CPSC) to voluntarily recall about 154,000 K-GUARD, SENTRY and FLAG FIRE Model Fire Extinguishers because if the fire extinguisher is dropped horizontally from a height of approximately 2 to 3 feet (0.91 m), the internal pick-up tube could crack and the extinguisher can ...
Gaseous fire suppression, also called clean agent fire suppression, is the use of inert gases and chemical agents to extinguish a fire. These agents are governed by the National Fire Protection Association (NFPA) Standard for Clean Agent Fire Extinguishing Systems – NFPA 2001 in the US, with different standards and regulations elsewhere.
The company changed its name to the General Fire Truck Corporation in 1926 and began collaborating on fire trucks with other manufacturers, including Pierce-Arrow and Studebaker. Throughout its production history General used commercial truck chassis from Chevrolet, GMC, Ford, Dodge, Diamond-T, International, Reo, and other manufacturers.