Search results
Results from the WOW.Com Content Network
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.
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."
My only experience of gas mantles was carivanning with my family in the 1960s. Our 'van had two gas lamps. The mantles usually (but not always) survived the annual holiday being towed round Europe, but if the mantle was touched by a match whilst being lit, it would invariable be holed, leading to a significant reduction in light output. 82.16 ...
Propane, butane, and methane are all flammable gases used in fireplaces (natural gas is mostly methane, liquefied petroleum gas mostly propane). Gases can act as asphyxiant gases [16] or cause gas explosions [citation needed] if they are allowed to accumulate unburned. Ethanol (a liquid, also sold in gels) fires can also cause severe burns. [17]
You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made.