Bellows

A bellow is a device that is constructed to release a blast of strong air. The most common type of bellow is a bag which is comprised of rigid boards with handles which can be both expanded and contracted to force air out. They are commonly used in many applications but the most common is to blow air on a fire to duel it and increase heat output. Other types of bellows include box bellows, pot bellows, tatara foot bellows, accordion bellows, piston bellows and metal bellows. Bellows are widely used in the field of Metallurgy, particularly in the applications of smelting and welding and in other processed that require heat that can only be generated through a bellowing process.