A Leather Bellow is a tool designed for a powerful blast of air. The least complicated sort of bellows comprises of an adaptable bag containing a pair of rigid boards with handles connected by flexible leather sides that enclose an airtight cavity that can be enlarged and reduced using handles and fitted with a valve that allows air to fill the pit as it expands and tube through which air is pushed into the stream during compression of the cavity. It has many uses, including blowing into the fire for air supply.
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