WELDING BURNER Russian patent published in 2000 - IPC

FIELD: gas-shield welding with use of non-consumable electrode in different branches of machine engineering. SUBSTANCE: welding burner includes tracts 3,4 respectively for feeding welding wire 5 and supplying shield gas arranged in central pipe 6, switch of electric control system with n number of contacts, leaf springs 8 and n gaskets 11 uniformly placed along circle. Fixed members 7 of contacts are secured to central pipe 6 inside it by means of leaf springs 8. Movable members 9 are secured to inner surface of annular sleeve 10 mounted in reciprocal turning of burner body. There are n number of elastic gaskets 11 placed between pipe 6 and sleeve 10. EFFECT: enhanced serviceability and efficiency of burner due to improved design of switch that may be turned on at any side of burner body. 2 dwg