Wind instruments (mining)
A blower is the unwanted escape of compressed mine gas during mining work. In underground mining there are often firedamp under high pressure in cavities . If such a space is unintentionally drilled or opened in some other way, the mostly toxic and / or explosive gases blow out over a long period of time (hours to years) through the opening that has been created.
swell
- Mine explosions. In: Meyers Großes Konversations-Lexikon. Volume 8, Leipzig 1907, pp. 435-438. (online at: zeno.org )
- Mining terms. on: miner-sailor.de