"C spring" meaning in English

{
  "forms": [
    {
      "form": "C springs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "C spring (plural C springs)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "cee spring"
        }
      ],
      "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": "1936, Norman Lindsay, The Flyaway Highway, Sydney: Angus and Robertson, page 16:",
          "text": "A very spirited affair it looked with its red body and yellow wheels, bouncing about on its high C springs [...] with its four horses going full stretch and two postilions in knee-cords and top-boots laying into the horses in a lather of dust and excitement.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Alternative form of cee spring"
      ],
      "id": "en-C_spring-en-noun-OSwLTNjs",
      "links": [
        [
          "cee spring",
          "cee spring#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "C spring"
}

{
  "forms": [
    {
      "form": "C springs",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "C spring (plural C springs)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "cee spring"
        }
      ],
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms derived from the shape of letters",
        "English terms with quotations",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "1936, Norman Lindsay, The Flyaway Highway, Sydney: Angus and Robertson, page 16:",
          "text": "A very spirited affair it looked with its red body and yellow wheels, bouncing about on its high C springs [...] with its four horses going full stretch and two postilions in knee-cords and top-boots laying into the horses in a lather of dust and excitement.",
          "type": "quote"
        }
      ],
      "glosses": [
        "Alternative form of cee spring"
      ],
      "links": [
        [
          "cee spring",
          "cee spring#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "C spring"
}