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  Baby Dragon: Pocket Flame Thrower

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Author Topic:   Baby Dragon: Pocket Flame Thrower
killer_elite
Frequent Poster
posted August 20, 1999 02:12 PM     Click Here to See the Profile for killer_elite   Click Here to Email killer_elite     
Baby Dragon: Pocket Flame Thrower

This is an easy one. You require three simple items:

-Metal Cigarette Lighter (not a plastic butane one)

-Hypodermic Syringe (available from places like a Co-op store who sells these to farmers for vaccinating their animals. If you have a diabetic in the family steal one of their syringes)

-Lighter Fluid (do not uder any circumstances use gasoline)

-Black Electrical Tape


Construction and utilization:

You want a syringe with a very, very short needle, or else your going to need to remove the needle altogether. Cutting a needle with wire cutters won't work. It tends to crimp the hollow passageway and fluid cannot travel through the needle.

Tape the needle to the metal lighter so the tip of the needle rests over the grill on the lighter. What you want to be able to do is squirt lighter fluid out of the needle and have it ignited on its way out. You need to tip the lighter on its side to effectively ignite the fluid.

Nw the trick is being able to do this with one hand--and perhaps be reaching for another weapon with the other hand. With the syringe 3/4 full of fluid and the plunger most of the way out, you wrap your hand as best as yo can around the device. Now bring the device down to your thigh and push the plunger against it while pointing the needle frontward. Push hard to cause the stream of fire to shoot a long ways out.

I have tried ideas like affixing a rubberband to the syringe for automatic depression of the plunger and was not happy with the results. It didn't work well with a full syringe, but works very well when the syrige was less than 1/3rd full.

Transportation:

To transport this device around you can place a rubber stopper (rubber cork) in the tip of the needle and the syringe will not leak in your pocket.

You could also transport it in a thin jar with a screw on top.

IMPORTANT!:

Whatever you do don't use a plastic butane lighter. Like all babies, the baby dragon tends to leak now and then. If burning fuel leaks onto a butane lighter it could blow your hand off.

If anyone has any questions about any of my devices or projects, or if you just want to tell me how much you enjoy my work please feel free to contact me at the address below:


killer_elite@my-Deja.com




Ho ju
Moderator
posted September 02, 1999 10:28 PM     Click Here to See the Profile for Ho ju   Click Here to Email Ho ju     
You know what else works as a good flame thrower? a super soaker filled with some type of flamable liquid and matches duct taped to the nozzle. Light the matches and shoot the s. soaker and you havea really good flame thrower that shoots about 20 - 30 feet. Although i have seen this done, i am still wondering if the flame will go back into the nozzle and make the bottle that holds the liquid explode if the pressure gets to low. any thoughts?

------------------
Knowledge is power, power leads to corruption, corruption is a crime, crime doesn't pay. So if you know to much you will go broke!!




VeHeMT
Frequent Poster
posted September 03, 1999 12:28 PM     Click Here to See the Profile for VeHeMT   Click Here to Email VeHeMT     
There is no oxygen present in the tubes and other places in the super soaker. Also when using liquid fuels what is really burning is the vapors, not the liquid itself but the vapors coming off that liquid. So then inside the tubes and tank there is only liquid fuel, not yet vapor . The only way for this to happen is if all liquid fuel was spent and small amounts of it were left in the form of vapors, then this is plausible, since for air presure the super soakers utilize compressed air from the guns surroundings. There are other concerns with making a super soaker flame thrower all those and the mentioned before will be discussed now.

1] Flame melting plastic nozzle- Solution use small length of metal tubing epoxied to nozzle, make sure ID is same of the nozzle of gun. This tube doesnt need to be any more then 3 or 4 cm long.

2]Flame coming back into gun (albeit small chances)- Solution a metal mesh fire trap in the small length of tubing so any flame coming back in is stopped here. Aluminum window screen should do nicely here. Do not use the other plastic/fiberglass window screen, these will melt.

3] Fuel dissolving plastic/glues of gun. Dont use powerful solvents such as acetone.
Make sure the fuel cannot dissolve the plastic. If you are not sure do tests on small pieces of plastic that can be either from the gun or from another toy, preferably a small slice from an unimportant area of the gun ( like the side of the body of the gun ) . Only a small amount of plastic is needed ( 3 mm by 5 mm chip is good) .

Additionaly a small piece of cloth (2cm x 5cm) can be tied around the metal tube nozzle. You can then dip the cloth in a small cup of oil and light the cloth so u have a constant flame. When this cloth doesnt burn nicely anymore or the cloth starts to get black just extinguish the flame (cover it with another piece of cloth and suffocate the flame) and then dip it back into the oil. If the cloth is seriously blackened just replace. The cloth should be placed on the very end of the tube. If the cloth does not ignite the flamethrower you can simply glue another piece of metal under the nozzle tube about 3 or 4cm in front of the nozzle making sure it doesnt interfere with the stream of fuel and attach the cloth there .


At hobby shops u can get brass tubing which will do nicely for this. If your nozzle is so small that the flametrap of window screening wont fit inside or jams the gun u may not need a flame trap at all.

~VeHeMT


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