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The earliest Chinese oil lamps are dated from the Warring States period (481–221 BC). The ancient Chinese created oil lamps with a refillable reservoir and a fibrous wick, giving the lamp a controlled flame. Lamps were constructed from jade, bronze, ceramic, wood, stone, and other materials. The largest oil lamp excavated so far is one ...
The two lamp fuels required different lamps. Burning fluid could be used in a simple small table and hand lamps, requiring no chimney. [22] Burning fluid lamps had two long tapering wick tubes that looked like the letter V. The tubes had caps resembling thimbles to extinguish the light and prevent evaporation when the lamp was not in use ...
The fuel is seal-oil or blubber, and the lamp is made of soapstone. [5] A qulliq is lit with a stick called a taqqut. This characteristic type of oil lamp provided warmth and light in the harsh Arctic environment where there was no wood and where the sparse inhabitants relied almost entirely on seal oil or on whale blubber. This lamp was the ...
Lamp trimmer was a specialist position on board ships that involved maintaining oil lamps. [1] In the days when light came from burning oil in lamps, a vessel at sea needed crewmen to constantly care for the lamps. This care involved trimming the wick, which drew the oil up from the storage reservoir, so that the flame would be clean and bright ...
Oxy-fuel processes may use a variety of fuel gases (or combustible liquids), the most common being acetylene. Other gases that may be used are propylene, liquified petroleum gas (LPG), propane, natural gas, hydrogen, and MAPP gas. Liquid fuel cutting systems use such fuels as Gasoline (Petrol) Diesel, Kerosene and possibly some aviation fuels.
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Vacuum Ovens use pyrolysis in a vacuum [92] avoiding uncontrolled combustion inside the cleaning chamber; [87] the cleaning process takes 8 [88] to 30 hours. [93] Burn-Off Ovens, also known as Heat-Cleaning Ovens, are gas-fired and used in the painting, coatings, electric motors and plastics industries for removing organics from heavy and large ...
Avoid using any type of metal tool or spatula to scrape the surface. Metal can scratch or damage the enamel finish, leading to more damage. Soft silicone is always better for scraping stuck-on ...