Rolling steel hatch covers for open type bulk carriers are described. These hatch covers cover an area of about 600 square meters and weigh close to 200 tons, and they cover hatches that are about 80% of the vessel's beam and 96% of the hold's over-all length. Specifics of the lifting and driving systems, and the sequence of the hatch cover operation are both explained. Factors causing hatch deformation are given, and the methods adopted for ensuring proper water tightness of the covers, under all circumstances, are fully explained.

  • Corporate Authors:

    Tokyo News Service Limited

    10 Ginza Nishi, 8-chome, Chuo-ku
    Tokyo,   Japan 
  • Publication Date: 1973-12

Media Info

  • Pagination: 3 p.
  • Serial:
    • Zosen
    • Volume: 18
    • Issue Number: 9
    • Publisher: Tokyo News Service Limited

Subject/Index Terms

Filing Info

  • Accession Number: 00054977
  • Record Type: Publication
  • Source Agency: National Maritime Research Center, Kings Point
  • Files: TRIS
  • Created Date: Jul 15 1974 12:00AM