As first used on the English stage in the latter part of the 17th century, footlights consisted of open-flame oil lamps with floating wicks.
The open-flame oil lamp on a miner's cap is thought to have either ignited a pocket of gas or the thick coal dust in the air.
An important design constraint employed in this investigation is the use of conventional, yellow-flame oil burners, integrated with a typical boiler.
Flaming oil drums guided us towards the core of a city that, even then, was largely deserted.
At 11pm the last flame, an oil lamp standing by the stone slab covering the Grave of the Unknown Warrior, a unidentifiable body buried there in 1920 in soil brought from France, was snuffed out too by the Duchess of Cornwall.
Saute on a low flame till oil separates.
Then the whole city became black, except for the odd headlight and the flames from oil fires.
Flames of oil lamps flickered to a slow breeze.
Sparks fly off grinders, flames balloon out of quench oil, flames casually spill out the sides of forges, and little fires constantly break out and recede every time a bladesmith drops metal on the floor.
Do not use an open flame to heat linseed oil, linseed oil, varnishes, or burnt plate oil.
Also, the temperatures and NOx concentrations of liquid butane flames are lower than those of diesel oil flames.
