| 摘要 |
Welding device comprises a) throw away oxygen and combustion gas flasks (1) with connection pieces (2) with inbuilt block valves (V) adjustable against the inner gas pressure and preventing gas out-flow, b) pressure reduction valves (3) automatically opening the block valves with means for shutting off the gas flow, c) at least in the oxygen tubing (7) and pref. in the combustible gas tubing as well, a recoil valve (13) opening in the direction of the gas flow, d) separated adjustable valves (9) in the weld burner (8) for the two gases, e) a solid container (44) for the gas flasks and burner.
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