US3416590A - Hatch cover or similar closure member - Google Patents

Hatch cover or similar closure member Download PDF

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Publication number
US3416590A
US3416590A US485491A US48549165A US3416590A US 3416590 A US3416590 A US 3416590A US 485491 A US485491 A US 485491A US 48549165 A US48549165 A US 48549165A US 3416590 A US3416590 A US 3416590A
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US
United States
Prior art keywords
cover
coaming
sections
beams
opening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US485491A
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English (en)
Inventor
Nordh Ulf Sune Ivar
Olsson Johan Bertil
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Goetaverken AB
Original Assignee
Goetaverken AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Goetaverken AB filed Critical Goetaverken AB
Application granted granted Critical
Publication of US3416590A publication Critical patent/US3416590A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B19/00—Arrangements or adaptations of ports, doors, windows, port-holes, or other openings or covers
    • B63B19/12—Hatches; Hatchways
    • B63B19/14—Hatch covers
    • B63B19/19—Hatch covers foldable
    • B63B19/203—Hatch covers foldable actuated by cables or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B19/00—Arrangements or adaptations of ports, doors, windows, port-holes, or other openings or covers
    • B63B19/12—Hatches; Hatchways
    • B63B19/14—Hatch covers
    • B63B19/19—Hatch covers foldable

Definitions

  • a cover for a rectangular hatchway is formed of sections connected together in pairs by means of folding hinges, and one side edge of one section of each pair is swingably secured to a long side of a coaming about said hatchway.
  • a plurality of two-part articulated strengthening beams perpendicular to said long side of the coaming are secured to the sections. In extended form, each such beam rests with both ends on such coaming. The beams are foldable in the same manner as, and with, said cover sections.
  • At the folding joint of each articulated joint there are provided means for counteracting downward acting forces on such joint.
  • the present invention refers to a hatch cover or a similar closure member for a rectangular opening, especially an opening where the length is considerably greater than the breadth.
  • the cover consists of sections pairwise interconnected by means of folding hinges, one section of each pair being swingably mounted on the coaming.
  • cover designs of this type are usually made of steel and are a development of the early design of covers, where wooden slabs were carried by cross beams, usually arranged athwartships.
  • the steel covers are often provided with stilfeners built into the cover and running parallel to the swinging axis. These torseners act as a substitute for the old cross beams and distribut the weight of the cover evenly along the coaming.
  • the increase of ships sizes and also the desire to accommodate special cargoes has brought about hatch openings of considerable dimensions.
  • the ratio between the sides of the hatch opening may be as much as 1:3.
  • the swinging hinge is usually located at the shortest side of the opening but the cover sections must nevertheless be designed to take care of the stresses brought about by considerable spans.
  • the stitfeners built into the cover will therefore necessitate a deep web and the whole construction will be heavy and dicult to handle.
  • One object of the present invention is to bring about an arrangement, Where the swinging side of the cover coincides with the long side of the opening, and where a considerable part of the strength is located in a few carrying beams, which transfer the load to the coaming at certain points.
  • the cover part proper may be designed lighter and a total reduction of weight corresponding to 25-30% may be obtained.
  • the cover will also be less rigid, whereby a better alginment at the sealing edges is obtained.
  • These beams are foldable in the same manner as the covers and a common operating gear may be utilized.
  • a further object of the invention is to provide means at the folding joint of each beam adapted to counteract downward acting forces in said joint.
  • FIGURE 1 shows a view of a cover according to the invention as seen from above.
  • FIGURE 2 is a section along line IIAII in FIGURE 1.
  • FIGURE 3 shows on a larger scale the joint of a beam.
  • FIGURE 4 is a section along line IV-IV in FIGURE 3.
  • FIGURE 5 shows means for relieving the stress in the folding hinges and FIGURE 6 is a section along line VI-VI in FIG- URE 5.
  • the hatch cover shown in FIGURES l and 2 consists of two sections 1 and 2 of which one, 1, is swingably mounted, by means of a suitable hinge device 3 upon one of the long sides of the coaming 4.
  • a suitable hinge device 3 upon one of the long sides of the coaming 4.
  • the sections are further at their outer corners provided with wheels 6 and 6a which are adapted to roll upon the broad sides of the hatch coaming throughout opening and closing movements, and with wheel 7 which will be further described hereinbelow.
  • the hingedly connected sections have considerably greater length than corresponds to the combined breadth of a pair of sections.
  • the weight of the sections 1 and 2 is mainly carried by two two-part beams 8, 9 arranged at right angles to the swinging axis and located at about one third of the length of the section, as counted from the broad sides thereof.
  • the beams 8, 9 are provided with wheels 7 which roll on the sides of the coaming during a small part, only, of the total movement of the cover sections, to wit at the beginning of the folding movement and at the ending of the unfolding movement.
  • the beams have such a length that their ends, when the cover is closed, will rest upon the long sides of the coaming and will transfer to the coaming an essential part of the Weight of the sections of which they are parts. yIn the shown design each beam will actually transfer about one third of the load to certain points of the long sides of the coaming, whereas comparatively weaker stiffeners 10 ⁇ arranged at right angles to these beams and parallel to the swinging axis will transfer one sixth to each of the broad sides of the coaming as a distributed load. Depending on the length of the opening any number of beams may be used.
  • the hinge 11 may be supplemented or substituted -by a locking link 15 containing a T-shaped stud 16 connected to one part of the beam.
  • This stud co-operates with a counterpart 18 having locking lips 17 at the other beam part.
  • the counterpart has a recess 19, which is somewhat broader than the cross bar 20 of the T-shaped stud, and which has such a length that during a folding of the sections along the dash-dotted line 21 the cross bar 20 :may leave the locking lips. During a continued folding of the section the cross bar 20 will be completely removed from the recess 19'.
  • the cover may be utilized as a closure member for store rooms and similar spaces and with hatch covers it shall be noted that it is of no importance how the long and broad sides of the opening are arranged in relation to the longitudinal direction of the ship.
  • a hatch cover according to claim 2 in which the link member contains a T-shaped stud at one beam part adapted in closed position of the cover to iit into and to co-operate with a counterpart at the other beam part having a correspondingly shaped recess provided with locking lips.
  • a hatch cover or similar closure vmember for a rectangular opening the length of which is considerably greater than its breadth, which opening is bordered by a coaming which comprises a pair of cover sections which in extended (closed) position cover said opening; folding hinges interconnecting said sections at their adjacent long edges; swinging hinge means connecting one of said cover sections to one long side of the coaming; two spaced strong two-part articulated beams in said cover sections said beams extending at right angles to the long sides of the coaming and being foldable in the same manner as the cover sections; each said beam being spaced inwardly from the short side of the coaming and when in extending position spanning said opening and resting on the long sides of the coaming; a link member, comprising a hinge, located at the underside of each beam and connecting the two parts thereof; each said link member further including a T-shaped stud at one beam end and a corresponding recess provided with locking lips at the confronting beam end; said stud, when the cover sections are in extended position,

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Auxiliary Methods And Devices For Loading And Unloading (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
  • Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
US485491A 1964-10-01 1965-09-07 Hatch cover or similar closure member Expired - Lifetime US3416590A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1178264 1964-10-01

Publications (1)

Publication Number Publication Date
US3416590A true US3416590A (en) 1968-12-17

Family

ID=20294618

Family Applications (1)

Application Number Title Priority Date Filing Date
US485491A Expired - Lifetime US3416590A (en) 1964-10-01 1965-09-07 Hatch cover or similar closure member

Country Status (3)

Country Link
US (1) US3416590A (enExample)
GB (1) GB1080975A (enExample)
NO (1) NO121483B (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2827415A1 (de) * 1978-06-22 1980-01-03 Thyssen Industrie Lukenabdeckung
CN104648618A (zh) * 2015-03-23 2015-05-27 上海外高桥造船有限公司 用于船舶的可折叠式栅盖
CN105620665A (zh) * 2016-03-04 2016-06-01 上海外高桥造船有限公司 海底门格栅及包含其的船舶

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS555428Y2 (enExample) * 1975-10-20 1980-02-07

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US553931A (en) * 1896-02-04 Hinge for blinds
US2655889A (en) * 1948-05-19 1953-10-20 Seaboard Machinery Corp Hatch cover
US2672645A (en) * 1951-03-21 1954-03-23 Ingram Orville Pintle type hinge for floor racks and the like
US2918122A (en) * 1958-02-19 1959-12-22 G M E Corp Single actuator folding hatch cover
US2996032A (en) * 1955-03-02 1961-08-15 Bethlehem Steel Corp Folding hatch covers
US3169502A (en) * 1963-10-04 1965-02-16 Godchaux Bldg Hatch cover arrangement

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US553931A (en) * 1896-02-04 Hinge for blinds
US2655889A (en) * 1948-05-19 1953-10-20 Seaboard Machinery Corp Hatch cover
US2672645A (en) * 1951-03-21 1954-03-23 Ingram Orville Pintle type hinge for floor racks and the like
US2996032A (en) * 1955-03-02 1961-08-15 Bethlehem Steel Corp Folding hatch covers
US2918122A (en) * 1958-02-19 1959-12-22 G M E Corp Single actuator folding hatch cover
US3169502A (en) * 1963-10-04 1965-02-16 Godchaux Bldg Hatch cover arrangement

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2827415A1 (de) * 1978-06-22 1980-01-03 Thyssen Industrie Lukenabdeckung
CN104648618A (zh) * 2015-03-23 2015-05-27 上海外高桥造船有限公司 用于船舶的可折叠式栅盖
CN105620665A (zh) * 2016-03-04 2016-06-01 上海外高桥造船有限公司 海底门格栅及包含其的船舶

Also Published As

Publication number Publication date
GB1080975A (en) 1967-08-31
NO121483B (enExample) 1971-03-01

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