Method and system of thrusters to increase the cost of the operation of devices for spraying, in which the material to be projected, of great length, brought to the spraying apparatus, is melted by means of a gaseous mixture in the form of a flame

摘要

222,903. Meurer, N. May 4, 1923. Blowpipe dc. burners.-In a spraying apparatus in which elongated fusible material is fed thereto and fired by means of' an ignited gas mixture, and having a space for the formation of flame in the interior of the nozzle, system, a mixing chamber for the combustible gas and oxygen is formed in the front of the nozzle head near the space where the flame is formed. The head e which carries a central nozzle through which the fusible material is led, is provided with three stepped threads on which are mounted three coaxial nozzle bodies a, b, i, the inner nozzle a extending through the nozzle d and a short way into the nozzle h. Oxygen is fed to the inner body d, through ports b, w1 and escapes through fine holes d1 into a space c where it mixes with combustible gas fed through ports t, u1 and a flame is formed in the space b1 immediately in front of the nozzle a. Atomizing gas such as air is fed through ports S to the space g in the outer nozzle i and escapes through grooves b2 into the space j1 formed in the adjustable nozzle part j.