{
  "abstract": "A roller conveying rack includes two carrier plates with rectangular shapes, wherein the carrier plates are arranged in parallel and aligned, legs are disposed on both sides of a bottom of each carrier plate in a longitudinal direction of the carrier plate, the legs on different carrier plates are connected by sleeve shafts broken in a middle portion, rolling sleeves broken in a middle portion are arranged between upper portions of the carrier plates in the longitudinal direction of the carrier plates, movable shafts are disposed at the broken middle portion of the sleeve shafts and connecting shafts are disposed at the broken middle portion of the rolling sleeves, insertion holes are provided on each sleeve shaft between the legs and threaded holes are provided on each movable shaft between the legs, and each insertion hole is connected to a corresponding threaded hole by a bolt.",
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  "publication_id": "OT-2026-000000198",
  "published_at": "2026-09-15T19:02:36.072116Z",
  "publisher": "Nebula Innovations Limited",
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  "source_date": "2026-04-21",
  "source_id": "US-12606380-B2",
  "source_name": "the United States Patent and Trademark Office",
  "source_url": "https://patents.google.com/patent/US12606380B2",
  "supersedes": null,
  "title": "Roller conveying racks with quickly adjustable width",
  "uuid": "01a0a673-1927-726c-961d-d0ffeb84b02b"
}