Back Fire. The popping out of the torch flame, due to a slight explosion of the mixed gas between the torch tip and the mixing chamber.
Bearing. Support or wearing surface for a revolving shaft.
Bevel. To cut or form at an angle.
Beveled Edge. An edge cut or formed at an angle.
Blowhole. A hole or cavity formed by trapped gas in metal.
Blowpipe. A torch which mixes and burns gases producing high-temperature flames. The term TORCH is given preference in oxy-acetylene welding and cutting.
Brazing. Uniting metals with brass or bronze by means of heat.
Brazing Wire. A filler-rod of brass or bronze used in brazing.
Butt Joint. A joint made by butting two edges together.
Cap. A metal cover used to protect cylinder valves.