Trumpeting

{
  "id": "MLC-T-IND-006212",
  "term": "Trumpeting",
  "field": "Industrial and trades",
  "definition": "A wooden conduit or pipe used to convey air for ventilation into a mine shaft or heading, particularly in older mining systems. This ductwork, often square in cross-section and made of planks, would be connected to a ventilation furnace or fan to direct a flow of fresh air to the working face. The term is also used for the widening, funnel-like shape at the top of a pipe or shaft.",
  "subject": "Mining and extraction",
  "translations": {
    "de": "Trumpeting",
    "es": "trompeteo",
    "fr": "trompette"
  },
  "url": "https://mlchart.com/terminology/industrial/trumpeting/"
}