Converter

—1. A machine employing mechanical rotation in changing electrical oor from one form to another. Alsc called, transformer. 2. In steel making, an egg shaped retort, mounted on trunnions, which, in the Be emer proce , is filled with molten pig iron tilted at a suitable angle, and air blown throug until the spectroscope shows the combined carb or to be burnt away. A proper proportion of spiegel eisen or ferro-manganese is added to give the proper percentage of carbon, and after a little further agitation the charge is run off to be cas into. ingots. 3. In copper smelting, an apparatus similar to the above, in which sulphur, arsenic, etc., is burnt off from the matte.