Conveyors

{
  "publication_number": "US3631574A",
  "country": "US",
  "kind": "A",
  "title": "Conveyors",
  "abstract": "A tile extrusion machine comprises an endless loop conveyor which carries the pallets through the extrusion apparatus at a constant speed. The conveyor comprises a succession of links forming a continuous surface to support the pallets across their widths and along their lengths, adjacent links being pivotally coupled together about axes perpendicular to the direction of movement of the conveyor, the axes being below the level of the pallet-supporting surfaces and directly below the ends of or outside the lengths of the pallet-supporting surfaces of the links, so that when a link pivots at either end of the conveyor no part of the link moves above the pallet-supporting surface of the links running over the bed.",
  "claims": [
    "1. Tile extrusion apparatus comprising: a. a horizontal bed, b. a plurality of pallets, c. an endless loop conveyor to convey said pallets in a continuous stream over said bed, the conveyor consisting of a plurality of pallet-supporting links pivotally coupled together end to end by horizontal axles, the axes of said axles being below the level of and not within the length of the palletsupporting surface of any one link, and at least one roller mounted on each of said axles and capable of making contact with the bed, the cooperating portions of the pallets and links being dimensional and shaped so that the portion of the conveyor above the bed forms a substantially continuous surface which supports and locates each pallet over the length and width of the pallet and so that each pallet is supported on portions of at least three links, d. means above the portion of the stream passing over the bed to deposit tile-forming material on the pallets, and e. a pressure roller above the portion of the stream passing over the bed to shape the material on the pallets.",
    "2. Apparatus as claimed in claim 1 wherein a whole number, which is at least three, of links are arranged to have the same length as a pallet.",
    "3. Apparatus as claimed in claim 1 wherein a set of at least three links are arranged to have the same length as, and to positively locate, a pallet.",
    "4. Apparatus as claimed in claim 1 wherein the machine is provided with roller means to support the return flight of the endless loop conveyor.",
    "5. Tile extrusion apparatus as claimed in claim 1 in which the endless loop conveyor passes around wheels at the ends of the conveyor and having axes below the horizontal bed, and in which other conveying means are arranged at the ends of the said conveyor to support pallets at the level of the said conveyor before and after the conveyor engages with or disengages from the pallets, so that the conveyor and the conveying means are arranged to support the pallets at the same level throughout the machine.",
    "6. Apparatus as claimed in claim 5 wherein the means for locating each pallet are shaped so as to both positively drive said pallet and also to disengage therefrom at the end of the first conveyor without jolting the pallet."
  ],
  "description_excerpt": "limited Mates Patent [54] CONVEYORS 6 Claims, 5 Drawing Figs. [52] US. Cl 425/470, 19 139 [51] Int. Cl B28b 3/20 [50] Field of Search 25/11, 17 C,18,41.1,4l.3,42,43,D1G.17,DlG.18;18/2,4 C,4P,9, 10; 198/189 [5 6] References Cited UNITED STATES PATENTS 1,694,579 12/ 1 928 Brock 7/1965 White Primary Examiner-J. Spencer Overholser Assistant Examiner-DeWalden W. Jones Att0rneyYoung and Thompson ABSTRACT: A tile extrusion machine comprises an endless loop conveyor which carries the pallets through the extrusion apparatus at a constant speed. The conveyor comprises a succession of links forming a continuous surface to support the pallets across their widths and along their lengths, adjacent links being pivotally coupled together about axes perpendicular to the direction of movement of the conveyor, the axes being below the level of the pallet-supporting surfaces and directly below the ends of or outside the lengths of the palletsupporting surfaces of the links, so that when a link pivots at either end of the conveyor no part of the link moves above the pallet-supporting surface of the links running over the bed.\n\nPATENTEUJMI 41912 SHEET 3 BF 3 Fig.5. 36 H ym/cz/vr Fem/k (ma /1mm CONVEYORS The invention relates to tile extrusion machines, and more particularly to conveyors for use in such machines.",
  "cpc": [
    "B28B 5/028",
    "B65G 17/08",
    "B65G 2201/02"
  ],
  "ipc": [
    "B28B 5/02",
    "B65G 17/08",
    "B65G 17/26"
  ],
  "assignees": [
    "REDLAND TILES LTD"
  ],
  "inventors": [
    "CHAPMAN VINCENT FRANK"
  ],
  "filing_date": "1969-01-13",
  "publication_date": "1972-01-04",
  "grant_date": "1972-01-04",
  "priority_date": "1968-01-16",
  "application_number": "US-3631574D-A",
  "family_id": "9739067",
  "citations": [
    "US1694579A",
    "US2180284A",
    "US2715958A",
    "US3193903A",
    "US3363745A"
  ]
}