Argand lamp
Appearance
The Argand lamp was invented and patented in 1780 by Aimé Argand . It greatly improved on the home lighting oil lamp of the day by producing a light equivalent to about 6 to 10 candles. It had a circular wick mounted between two cylindrical metal tubes so that the air channeld through the center of the wick, as well as outside of it. A cylindrical glass chimney was used to steady the flame and to improve the flow of air. It used a supply of good liquid oil, such as spermaceti whale oil, as the fuel.
References
History of the lamp [1]