Early fire extinguisher (Wikipedia) <br><br>this fire great inspiration for him, he proposed a remedy to control the fire. 1818, Mann invention than a fire extinguisher cylinder is made of copper 4 gallons of a composition, having inserted therein a portable fire extinguisher 3 gallons pearl gray (potassium carbonate) solution and compressed air. <br><br>Portable fire extinguishers Man than invention, and fire extinguishers we use today is basically the same. Very convenient to carry, it can be placed on a specially designed trolley in order to ensure that can use in case of fire. In use, the switch may be opened at the top of the cylinder, from the conduit discharge extinguishing liquid under action of compressed air, firemen can not reach direct danger zone, it is also very good extinguishing effect. In recognition of his many achievements in sea rescue and fire fighting aspects of the Royal Society in 1831 him as a member. <br><br><br><br>Original URL: https: //kknews.cc/history/8z24o34.html
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