Blower Fan of history

Appliance "Blower Fan" fan, blowpipe and bladder, is the first for the forced draft fan and blowpipe. Ancient Egypt had used the torch goldsmith pottery with air nozzles, Incas sometimes 8 to 12 while blowing brass. Later, he invented the skins produced blast bladder, cystic duct and is divided into two ends by an operator manually controlled air inlet. This simple blower use in modern times are still some areas. Eighteenth Dynasty of Egypt Luck Mill (Rekhmir, about 1450 BC) tomb murals have been painted with the pitcher's foot blast image. When the air intake, the operator with a rope hauled bladder, and then depresses the wind drum into the furnace, each furnace blower with four, two opposite operation.