Arcwall machine

{
  "id": "MLC-T-IND-000274",
  "term": "Arcwall machine",
  "field": "Industrial and trades",
  "definition": "A type of coal-cutting machine used in underground mining, characterized by its ability to cut an arc-shaped kerf into the coal seam. This machine typically uses a rotating chain with cutting bits to undercut the coal face, making it easier to break down. Arcwall machines were instrumental in mechanizing coal extraction before the advent of continuous miners.",
  "synonyms": [
    "arcwaller",
    "slabbing machine"
  ],
  "subject": "Industrial supplies, equipment, and components",
  "references": [
    "Coal Cutting Machine (US1867853A) (Google Patents)"
  ],
  "translations": {
    "de": "Arcwall-Maschine",
    "es": "máquina de corte de paredes",
    "fr": "machine de découpe murale"
  },
  "url": "https://mlchart.com/terminology/industrial/arcwall-machine/"
}