the process of inflating the glass gathering by means of a blow pipe.
The technique of forming an object by inflating a gob of molten glass gathered on the end of a blowpipe. The gaffer blows through the tube, slightly inflating the gob, which is then manipulated into the required form by swinging it, rolling it on a marver, or shaping it with tools or in a mold; it is then inflated to the desired size.
To produce glass, a gaffer gathers a glob of molten glass on the end of a blowpipe. The gaffer inflates the glob slightly by blowing, and then manipulates it by swinging, rolling or shaping it with tools. Then the gaffer inflates the piece to its proper size, possibly within a mold in order to achieve a specific shape.