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    Marine tankers
    154.
    发明授权
    Marine tankers 失效
    海运油轮

    公开(公告)号：US3021809A

    公开(公告)日：1962-02-20

    申请号：US72570958

    申请日：1958-04-01

    Applicant: WM CORY & SON LTD

    Inventor： HENRY BROWN ROBERT

    IPC: B63B25/16 ,  B63J2/14 ,  F17C13/12

    CPC classification number: F17C13/126 ,  B63B25/16 ,  B63J2/14 ,  F17C2201/0128 ,  F17C2201/052 ,  F17C2203/0646 ,  F17C2203/0648 ,  F17C2205/013 ,  F17C2205/0329 ,  F17C2205/0335 ,  F17C2221/033 ,  F17C2223/0161 ,  F17C2223/033 ,  F17C2225/044 ,  F17C2227/0135 ,  F17C2227/0339 ,  F17C2250/0408 ,  F17C2260/031 ,  F17C2260/042 ,  F17C2265/034 ,  F17C2270/0105

    Abstract: 892,041. Carrying liquefied gas cargo. CORY & SON Ltd., Wm. March 31, 1958 [April 5. 1957], No. 11124/57. Class 113. [Also in Group XXVIII] A tanker for the bulk transport in the liquid state at low temperature of methane (or like ordinarily-gaseous substance) has liquefaction plant and circulating connections between the cargo tank or tanks and the plant whereby the gaseous methane boiling off in the tanks can be withdrawn, reliquefied and returned to the tanks. The ship is of turret construction with heavily insulated main tanks 18-23 extending substantially the full width of the ship and smaller tanks 33 which can be used to top up the main tanks if the liquefaction plant is unable to do so the cargo in the main tanks is kept topped up to a level in the narrow neck 27 of each tank, which neck is surmounted by a pump motor housing 32. These tanks extend up through the main deck 24 and except for tank 20 their necks 27 reach up through the turret deck 25. Main and secondary liquefaction plants are disposed at locations 76 and 77 respectively. In an emergency methane gas may be vented to atmosphere through six pairs of mast vents each having an anti-flash gauge at its upper end. Excess methane gas may be burnt off at flares on top of the masts 64 and 65. Specifications 892,042, 892,043, 892,044, 892,045, 892,046 and 892,047 are referred to.

    Containers for liquefied gases
    158.
    发明授权
    Containers for liquefied gases 失效
    液化气容器

    公开(公告)号：US2959318A

    公开(公告)日：1960-11-08

    申请号：US82120659

    申请日：1959-06-18

    Applicant: NORTH THAMES GAS BOARD

    Inventor： JOSEPH CLARK LESLIE ,  FREDERICK GOODMAN HUGH

    IPC: E04B1/76 ,  F17C3/02

    CPC classification number: F17C3/022 ,  E04B1/76 ,  F17C2201/0119 ,  F17C2201/032 ,  F17C2201/052 ,  F17C2203/01 ,  F17C2203/012 ,  F17C2203/032 ,  F17C2203/0341 ,  F17C2203/0354 ,  F17C2203/0629 ,  F17C2203/0678 ,  F17C2205/0379 ,  F17C2221/033 ,  F17C2223/0161 ,  F17C2223/033 ,  F17C2223/045 ,  F17C2223/047 ,  F17C2260/011 ,  F17C2265/031 ,  Y10S220/901

    Abstract: 851,568. Storing liquefied gases. NORTH THAMES GAS BOARD, and A.P.V. CO. Ltd. June 18, 1959 [July 1, 1958], No. 21057/58. Class 8(2). Prevention of compacting of powdered heat insulating material between inner and outer shells 2, 1, Fig. 1, of a liquefied gas e.g. methane container is effected by surrounding the inner shell 2 by a wall 7 so as to provide an air space 15 therebetween and a powdered heat insulation space 16 between the wall 7 and the outer shell 1, said wall 7 comprising a series of panels 9 e.g. horizontally corrugated aluminium sheets carried by vertical stanchions 10, Fig. 3, fixed by spaced, ties 11 to the outer shell 1 and capable of expansion and contraction relative to each other and to the stanchions 10 in a direction around the periphery of the wall 7 thereby maintaining the width of the insulation space 16 substantially constant. The corrugated sheets 9 are held between flanges 34 of the T-shaped stanchions 10 and angle strips 35 bolted to stanchion webs 29 and lined with resilient sealing material 37 ; the sheets having slots 32 at their ends which fit over pins 33 projecting from the flanges 34, thus allowing peripheral movement of the sheets. The shells 1, 2 have base plates 3, 5 relatively spaced by a layer of concrete 14 and dialomaceous bricks 13. The insulation space 16 is filled with perlite as in a space 17 between conical covers 4, 6 of shells 1, 2.

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