There were many who blamed the Beatles' end on the machinations of Yoko Ono, the legendary love of John Lennon's life, and on the deviousness of Allen Klein, the band's new manager who was also a favorite of Lennon's, but whom McCartney could not abide. But it wasn't that simple.
The apparatus used in gas welding consists basically of an oxygen source and a fuel gas source (usually cylinders), two pressure regulators and two flexible hoses (one of each for each cylinder), and a torch. This sort of torch can also be used for soldering and brazing.
Hot sparks from the weld can burn any skin that is showing. One kind of welding that does not use an arc is Oxy-fuel welding (OFW), sometimes called gas welding. OFW uses a flame to heat up the metal. There are other kinds of welding that do not use an arc.