"Sprengel pump" meaning in English

{
  "etymology_text": "Named after the inventor, Hermann Sprengel",
  "forms": [
    {
      "form": "Sprengel pumps",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Sprengel pump (plural Sprengel pumps)",
      "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"
        },
        {
          "kind": "topical",
          "langcode": "en",
          "name": "Pumps",
          "orig": "en:Pumps",
          "parents": [
            "Mechanisms",
            "Machines",
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "A kind of vacuum pump in which vacuum is produced by a stream of mercury drops running down a very narrow tube"
      ],
      "id": "en-Sprengel_pump-en-noun-59dAGO6z",
      "links": [
        [
          "vacuum pump",
          "vacuum pump"
        ],
        [
          "vacuum",
          "vacuum"
        ],
        [
          "mercury",
          "mercury"
        ]
      ],
      "wikipedia": [
        "Sprengel pump"
      ]
    }
  ],
  "word": "Sprengel pump"
}

{
  "etymology_text": "Named after the inventor, Hermann Sprengel",
  "forms": [
    {
      "form": "Sprengel pumps",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Sprengel pump (plural Sprengel pumps)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries",
        "en:Pumps"
      ],
      "glosses": [
        "A kind of vacuum pump in which vacuum is produced by a stream of mercury drops running down a very narrow tube"
      ],
      "links": [
        [
          "vacuum pump",
          "vacuum pump"
        ],
        [
          "vacuum",
          "vacuum"
        ],
        [
          "mercury",
          "mercury"
        ]
      ],
      "wikipedia": [
        "Sprengel pump"
      ]
    }
  ],
  "word": "Sprengel pump"
}