Early forms of blowtorch were called ‘blown lamps’ and originated as a tool for gold and silversmiths. They worked by blowing air by along a tube to a naked flame, dangerous work! The first patented model of this type is from France dated 1791 but this 20th century model still relied on a similar draught of air supplied naturally. This model is no longer in use but in it’s heyday would have produced high temperatures for a variety of metalworking tasks.
Blowtorch oil on canvas board