Cog

{
  "id": "MLC-T-IND-006870",
  "term": "Cog",
  "field": "Industrial and trades",
  "definition": "A projection left on a timber that fits into a matching notch in the piece that crosses it, locking the joint. In a cogged joint the lower timber is notched on both sides of a central cog that is left uncut, and the upper timber is notched to take the cog. The cog stops the two timbers from sliding sideways against each other.",
  "subject": "Carpentry",
  "see_also": [
    "cog joint",
    "cog mill",
    "hunting cog"
  ],
  "translations": {
    "de": "Zapfen",
    "es": "espiga",
    "fr": "tenon"
  },
  "url": "https://mlchart.com/terminology/industrial/cog/"
}