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Hot gas mantles. The lowest visible mantle has partially broken, reducing its light output An 85 mm Chance Brothers Incandescent Petroleum Vapour Installation. The mantle is a roughly pear-shaped fabric bag, made from silk, ramie-based artificial silk, or rayon. The fibers are impregnated with metallic salts; when the mantle is first heated in ...
Gas lighting in the historical center of Wrocław, Poland, is manually turned off and on daily.. Gas lighting is the production of artificial light from combustion of a fuel gas such as methane, propane, butane, acetylene, ethylene, hydrogen, carbon monoxide, coal gas (town gas) or natural gas.
An early version of the gas mantle lamp, kerosene was vaporized by a secondary burner, which pressurized the kerosene tank that supplied the central draught. Like all gas mantle lamps, the only purpose of the burner is to hold the flame that heats the mantle, which is 4-5 times as bright as the wick itself.
A Clamond basket is a kind of gas mantle, invented in the 1880s by the Parisian Charles Clamond, [1] and which he later patented in the United States. [2] It was the first economically practical gas mantle, since prior mantles had involved expensive materials like platinum and iridium.
A notable exception, discovered in the early 19th century, is the use of a gas mantle mounted above the wick on a kerosene lamp. Looking like a delicate woven bag above the woven cotton wick, the mantle is a residue of mineral materials (mostly thorium dioxide), heated to incandescence by the flame from the wick.
Thorium in mantles, though still common, has been progressively replaced with yttrium since the late 1990s. [151] According to the 2005 review by the United Kingdom's National Radiological Protection Board, "although [thoriated gas mantles] were widely available a few years ago, they are not any more."
Welsbach/General Gas Mantle: Camden & Gloucester: Camden: 06/17/1996 [90] Link: NJD986620995: 39.902412-75.126149 White Chemical Company: Newark City: Essex: 09/25/1991 [91] Link: NJD980755623: 40.698751 -74.197802 White Swan Cleaners/Sun Cleaners Area Ground Water: Wall Township: Monmouth: 04/30/2003 [92] Link: NJSFN0204241: 40.135812 -74. ...
Mantle (climbing), the external covering of a climbing rope. Mantle, a black and white dog coat colour, especially in Great Danes; Mantle (mollusc), a layer of tissue in molluscs which secretes the shell; Fireplace mantle or mantel, the hood over the grate of a fire; Gas mantle, a device for generating bright white light when heated by a flame