"reversing gear" meaning in English

{
  "forms": [
    {
      "form": "reversing gears",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "reversing gear (plural reversing gears)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1961 February, Cecil J. Allen, “Salute to the \"Claud Hamiltons\" & \"Directors\"”, in Trains Illustrated, page 115:",
          "text": "A new type of air-inducing ring improved considerably the atomising and distribution of the oil fuel in the firebox, and it was advanced practice for the period that the new engine was equipped with compressed air operation of both the reversing gear and the water-scoop.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A mechanism used to control the direction of travel of a steam locomotive."
      ],
      "id": "en-reversing_gear-en-noun-Y8fDjDqM",
      "links": [
        [
          "mechanism",
          "mechanism"
        ],
        [
          "control",
          "control"
        ],
        [
          "direction",
          "direction"
        ],
        [
          "travel",
          "travel"
        ],
        [
          "steam locomotive",
          "steam locomotive"
        ]
      ],
      "related": [
        {
          "word": "reverse gear"
        }
      ],
      "wikipedia": [
        "reversing gear"
      ]
    }
  ],
  "word": "reversing gear"
}

{
  "forms": [
    {
      "form": "reversing gears",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "reversing gear (plural reversing gears)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "reverse gear"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "1961 February, Cecil J. Allen, “Salute to the \"Claud Hamiltons\" & \"Directors\"”, in Trains Illustrated, page 115:",
          "text": "A new type of air-inducing ring improved considerably the atomising and distribution of the oil fuel in the firebox, and it was advanced practice for the period that the new engine was equipped with compressed air operation of both the reversing gear and the water-scoop.",
          "type": "quote"
        }
      ],
      "glosses": [
        "A mechanism used to control the direction of travel of a steam locomotive."
      ],
      "links": [
        [
          "mechanism",
          "mechanism"
        ],
        [
          "control",
          "control"
        ],
        [
          "direction",
          "direction"
        ],
        [
          "travel",
          "travel"
        ],
        [
          "steam locomotive",
          "steam locomotive"
        ]
      ],
      "wikipedia": [
        "reversing gear"
      ]
    }
  ],
  "word": "reversing gear"
}