Multiple flame burner for blow-lamp - has outlets with grooved and centrally apertured cylindrical nozzles

摘要

The burner has a one piece metal body with a row of outlet passages connected by an internal cylindrical passage. Inserted in each outlet is a cylindrical nozzle which has a central passage and equally spaced grooves on its peripheral surface. The grooves form small passages when the nozzles are press fitted into the outlets. The front face of the burner has bevelled edges and the passages and edges ensure that the flames are not extinguished when oxygen pressure is too high. The noise level of the burner is low and the burner is relatively compact.