"pinch bar" meaning in English

{
  "forms": [
    {
      "form": "pinch bars",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "pinch bar (plural pinch bars)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "pinchbar"
        }
      ],
      "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": "Tools",
          "orig": "en:Tools",
          "parents": [
            "Technology",
            "All topics",
            "Fundamental"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1950 January, David L. Smith, “A Runaway at Beattock”, in Railway Magazine, page 53:",
          "text": "With only one side working, and an up grade of 1 in 260, she wouldn't start. Mitchell told his fireman to try her with a pinch bar, so Richardson crossed over to Andrew Maxwell, a Glasgow driver, who was waiting with his engine on the up line, and borrowed a pinch bar from him. But she wouldn't start with the pinch bar, […].",
          "type": "quote"
        }
      ],
      "glosses": [
        "Alternative form of pinchbar."
      ],
      "id": "en-pinch_bar-en-noun-lOOgzOzt",
      "links": [
        [
          "pinchbar",
          "pinchbar#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "pinch bar"
}

{
  "forms": [
    {
      "form": "pinch bars",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "pinch bar (plural pinch bars)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "alt_of": [
        {
          "word": "pinchbar"
        }
      ],
      "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",
        "en:Tools"
      ],
      "examples": [
        {
          "ref": "1950 January, David L. Smith, “A Runaway at Beattock”, in Railway Magazine, page 53:",
          "text": "With only one side working, and an up grade of 1 in 260, she wouldn't start. Mitchell told his fireman to try her with a pinch bar, so Richardson crossed over to Andrew Maxwell, a Glasgow driver, who was waiting with his engine on the up line, and borrowed a pinch bar from him. But she wouldn't start with the pinch bar, […].",
          "type": "quote"
        }
      ],
      "glosses": [
        "Alternative form of pinchbar."
      ],
      "links": [
        [
          "pinchbar",
          "pinchbar#English"
        ]
      ],
      "tags": [
        "alt-of",
        "alternative"
      ]
    }
  ],
  "word": "pinch bar"
}