Blowpipe

nounStandard termCeramics & Glass

A hollow steel or iron tube used by glassblowers to gather molten glass and inflate it.

A long, hollow metal tube, usually made of steel or iron, with a mouthpiece at one end and a slightly flared gathering head at the other. The glassblower dips the heated head into the furnace to gather molten glass, then blows air through the tube to create a bubble, or parison. The pipe is constantly rotated on a bench or in the hands to keep the soft glass centered and symmetrical.

Heard on the job

Keep turning the blowpipe while you walk back to the bench so the gather doesn't droop.

Insider tip

A cold blowpipe will cause the molten glass to crack and fall off, so the gathering end must be preheated in the glory hole.

Also heard as

  • pipe