Torch for continuous-wire electric welding machines, gas- or water-cooled

A torch for continuous-wire electric welding machines, either gas- or water-cooled, comprising:

• a torch body terminating in a stepped outwardly-decreasing configuration which, beginning from the innermost maximum cross-section portion, comprises;
• a collar of polygonal shape,
• a cylindrical portion of round cross section, and
• a threaded end portion;
• a gas-diffusing nozzle screwed onto said threaded end portion of said torch body;
• a wire-guiding outlet spout screwed to said gas-diffusing nozzle;
• a protecting bush firmly mounted on said nozzle for protecting said nozzle and a portion of said spout;
• and
• surrounding portions surrounding said intermediate and said cylindrical portion of said torch body, said cylindrical portion being cooled in any suitable manner by at least one of forced circulation of water and the circulation of gas required for welding, wherein an outer one of said surrounding portions, composed of a material which is a good thermal conductor and wear-resistant, being coupled at one end to said collar with the interposition of an insert and having frictionally fitted thereon an end portion, constructed as an elastic clamp, of a housing which encloses and protects said nozzle and said spout, heat induced by welding operation into said housing being rapidly dissipated from said outer one.