Boss up

{
  "id": "MLC-T-IND-000702",
  "term": "Boss up",
  "field": "Industrial and trades",
  "definition": "To work a corner or angle in sheet lead into shape by dressing it with a bossing mallet and bossing stick, so the metal turns the angle without a cut or an open gap. The soft lead is stretched and moved gradually over a former or the surface beneath it rather than being soldered or folded. It is a traditional leadwork skill used on roof flashings and other sheet lead details.",
  "subject": "Plumbing",
  "references": [
    "Principles and practice of plumbing [electronic resource] (Wikimedia Commons)"
  ],
  "translations": {
    "de": "Boss up",
    "es": "recalcar",
    "fr": "bosseler"
  },
  "url": "https://mlchart.com/terminology/industrial/boss-up/"
}