Blowtube \Blow"tube`\, n.

1. A blowgun. --Tylor. [1913 Webster]

2. A similar instrument, commonly of tin, used by boys for discharging paper wads and other light missiles. [1913 Webster]

3. (Glassmaking) A long wrought iron tube, on the end of which the workman gathers a quantity of "metal" (melted glass), and through which he blows to expand or shape it; -- called also blowing tube, and blowpipe. [1913 Webster]

Source: The Collaborative International Dictionary of English v.0.48
 

Blowtube \Blow"tube`\, n.

1. A blowgun. --Tylor.

2. A similar instrument, commonly of tin, used by boys for discharging paper wads and other light missiles.

3. (Glassmaking) A long wrought iron tube, on the end of which the workman gathers a quantity of ``metal'' (melted glass), and through which he blows to expand or shape it; -- called also blowing tube, and blowpipe.

Source: Webster's Revised Unabridged Dictionary (1913)