{
  "$type": "site.standard.document",
  "description": "The wear monitor for an overhead tubular railway wire has a filling in the wire so that if wear or damage occurs due to train pantograph movement and the pantograph contacts the filling, a signal is sent from a contact sensor to a monitor. The filling can be transparent and an optical sensor can be…",
  "path": "/patents/1089712",
  "publishedAt": "2004-02-11T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60M1/135",
    "SIEMENS AG [DE]"
  ],
  "textContent": "The wear monitor for an overhead tubular railway wire has a filling in the wire so that if wear or damage occurs due to train pantograph movement and the pantograph contacts the filling, a signal is sent from a contact sensor to a monitor. The filling can be transparent and an optical sensor can be used.",
  "title": "Device for monitoring the wear of a catenary line"
}