| 摘要 |
PURPOSE:To supply stable carbon sparks into an air current without disturbing the air current very much, by jetting compressed air into a vessel containing carbon power by a jetting pipe. CONSTITUTION:Unburned carbon powder 11 is put in a vessel 1 and the vessel 1 is shut tightly. Then, a gas bomb 9 is opened and a nozzle 8 is ignited. Compressed air is sent to a jetting pipe 2 through an introducing pipt 4 by driving a pump and the air is jetted into the vessel 1 from a small nozzle 3 and then, the powder 11 is blown up. Said powder 11 is carried together with the compressed air in a take-out pipe 5 communicated to the ceiling of the vessel 1 and is reached to a combustion cylinder 7 interposed at a middle part. The powder 11 is turned into ignited sparks by receiving sufficient ignition energy because combustible gas in the bomb 9 is burnt at the tip end of the nozzle 8 and sparks flow in the pipe 5 as it is and then, are jetted into the air current of a model 10. |
