A welding torch provision, to make butt weldings, circumferentials, between two tubular members. (Machine-translation by Google Translate, not legally binding)

摘要

A welding torch arrangement for making circumferential butt welds between two tubular members, comprising: at least two carriages arranged to be spaced around the periphery of one of said tubular members and arranged to run around the outer face of one of said tubular members; means for connecting said carriages so that they are spaced around the periphery of said tubular member; driving means that are provided in at least one of said carriages for driving all the carriages assembled around the periphery of said tubular member; a welding head carried by at least one of said carriages, said welding head including an electrode, wherein an electric arc can be made to jump between said electrode and the joint between said tubular members, to perform said butt welding; means for supplying welding current to said electrode; a track mounted around one of said tubular members intended to force said carriages to follow a desired trajectory around said tubular member in such a way that said electrode is placed for welding. (Machine-translation by Google Translate, not legally binding)