Showing posts with label Project Topic. Show all posts
Showing posts with label Project Topic. Show all posts

Tuesday, 15 July 2014

The Design and Construction Of Voice Operated Fire Extinguisher Vehicle


                                                        CHAPTER TWO
                                                     LITERATURE REVIEW
                                    2.1 REVIEW OF HISTORY OF FIRE EXTINGUISHER
The first fire extinguisher of which there is any record was patented in England in 1723 by Ambrose Godfrey, a celebrated chemist at that time. It consisted of a cask of fire-extinguishing liquid containing a pewter chamber of gunpowder. This was connected with a system of