Gas torch supplied from bottle - has burner formed of cylindrical cup fitted with replaceable screens

摘要

The torch is connected to a supply of bottled gas through the supply pipe which is connected to the burner (12). The burner consists of a cylindrical cup (10) which is fitted with a perforated screen diffuser (13) to afford an even supply of gas across the diameter of the burner. The gas then passes through the primary screen (15) which is made up of two layers of fine wire mesh, and then through a secondary screen of much coarser weave (23). The screens are easily replaceable for cleaning or if they have been burnt up. The outer screen is fixed into position by the cover ring (24) which is fixed by a bayonet catch.