A safety lamp is any of several types of lamp that provides illumination in coal mines and is designed to operate in air that may contain coal dust or gases, both of which are potentially flammable or explosive. Until the development of effective electric lamps in the early 1900s, miners used flame lamps to provide illumination. Open flame lamps could ignite flammable gases which collected in mines, causing explosions; safety lamps were developed to enclose the flame and prevent it from igniting the surrounding atmosphere. Flame safety lamps have been replaced in mining with sealed explosion-proof electric lights.
Related
Tunnelling shield
invented by
A tunnelling shield is a protective structure used during the excavation of…
Photovoltaic effect
invented by Edmond Becquerel
The photovoltaic effect is the generation of voltage and electric current in a…
Poudre B
invented by Paul Vieille
Poudre B was the first practical smokeless gunpowder created in 1884. It was…
Hot blast
invented by James Beaumont Neilson
Hot blast refers to the preheating of air blown into a blast furnace or other…
Suggest an invention you think it should be here
About
Inventions that changed the world
Leave a Reply