Actually, a mantel is a woven piece of cloth. it is very loosely woven so that air can pass through it very easily.
I asked my wife about the mantels we use in our bottled gas camping lamps. They work the same way. The mantel is fitted over the gas jet at the top of the lamp. Then before you light the lamp you first burn the mantel with a match. The mantel burns and forms a shell of very pourous ash. Now when you light the lamp the ash becomes very hot and gives off the light.
If at sometime the ash of the mantel is caused to crumbole or come off you have to install a new mantel.
Interesting that hot ash can put off so much light.----- Original Message ----- From: "Grandma Cindy" <popularplace@xxxxxxxxx>
To: <bksvol-discuss@xxxxxxxxxxxxx> Sent: Saturday, November 17, 2007 4:32 PM Subject: [bksvol-discuss] Re: gas jet lighting
D*** How did I miss that one? Very interesting--but then, I was looking for a more detailed description. If I'd found that one, though, I'd have known about the mantle sooner. smile G.Cindy --- Dan Beaver <dbeaver888@xxxxxxxxx> wrote:If you go to this url:http://www.buildingconservation.com/articles/light98/light98.htmYou will find a description of how lighting has advanced over time. It gives a rather good description of gas jet lighting in Victorian and Georgian England. As you will see, originally gas jet lighting was very poor and anyone trying to read by it had to place their reading materials very close to the jet to be able to read. Later a modification added a mantle which caused the light to be brighter and it gave much more light to a room. I hope you all find this site to be as informative and interesting as I did. To unsubscribe from this list send a blank Email to bksvol-discuss-request@xxxxxxxxxxxxx put the word 'unsubscribe' by itself in the subject line. To get a list of available commands, put the word 'help' by itself in the subject line.____________________________________________________________________________________ Never miss a thing. Make Yahoo your home page. http://www.yahoo.com/r/hs To unsubscribe from this list send a blank Email to bksvol-discuss-request@xxxxxxxxxxxxxput the word 'unsubscribe' by itself in the subject line. To get a list of available commands, put the word 'help' by itself in the subject line.
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