GB895820A - Improvements in or relating to floating covers suitable for use in storage tanks - Google Patents

Improvements in or relating to floating covers suitable for use in storage tanks

Info

Publication number
GB895820A
GB895820A GB7065/61A GB706561A GB895820A GB 895820 A GB895820 A GB 895820A GB 7065/61 A GB7065/61 A GB 7065/61A GB 706561 A GB706561 A GB 706561A GB 895820 A GB895820 A GB 895820A
Authority
GB
United Kingdom
Prior art keywords
beams
roof
sheet
frame
skirt
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
Application number
GB7065/61A
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.)
BP PLC
Original Assignee
BP PLC
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 BP PLC filed Critical BP PLC
Publication of GB895820A publication Critical patent/GB895820A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/34—Large containers having floating covers, e.g. floating roofs or blankets

Abstract

895,820. Tank roofs. BRITISH PETROLEUM CO. Ltd., and CHAMPAGNAT, A. Feb. 27, 1961 [March 7, 1960], No. 7065/61. Class 69 (1) A floating roof for a storage vessel 2 with upright walls 10 comprises a circular peripheral frame 9 crossed by parallel coplanar beams 6 covered by a horizontal sheet 17 of impervious material and having floats 7 on the underside whereby the roof is caused to float with the sheet 17 above liquid level and the lower edges of the vertical webs of the frame 9 and the beams 6 immersed so that vapour over the liquid is trapped below the sheet 17 in pockets formed between the frame 9 and the beams 6. The sheet 17 may be of metal or of plastic material in long strips which are assembled on to the beams 6 with the overlapping edges bolted down under cover strips 22. Alternatively the plastic cover may be folded and introduced for assembly through a trap 50 in the vessels' fixed roof 3. A skirt 34 is adjustably bolted to the frame 9 so as to form a good seal against the wall 10. The skirt is in the form of an invertet " L " (Fig. 1), or a " Z " (Fig. 13, not shown). Its horizontal flange is of flexible polyester resin reinforced with glass fibre. Its upright portion 33a may be of the same material or of sheet metal. The roof is provided with feet 18 which stand on the bottom when the vessel is empty of liquid. Rotation of the roof may be prevented by attached cables. Sampling and air-vent orifices may be provided. In large tanks the beams may be cross-braced.
GB7065/61A 1960-03-07 1961-02-27 Improvements in or relating to floating covers suitable for use in storage tanks Expired GB895820A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR895820X 1960-03-07

Publications (1)

Publication Number Publication Date
GB895820A true GB895820A (en) 1962-05-09

Family

ID=9390900

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7065/61A Expired GB895820A (en) 1960-03-07 1961-02-27 Improvements in or relating to floating covers suitable for use in storage tanks

Country Status (1)

Country Link
GB (1) GB895820A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3724704A (en) * 1971-04-13 1973-04-03 Pittsburgh Des Moines Steel Floating roof having uniformly distributed buoyancy means
WO2010006368A1 (en) * 2008-07-15 2010-01-21 Marecon Pty Ltd System and method for mitigating evaporation from reservoirs

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3724704A (en) * 1971-04-13 1973-04-03 Pittsburgh Des Moines Steel Floating roof having uniformly distributed buoyancy means
WO2010006368A1 (en) * 2008-07-15 2010-01-21 Marecon Pty Ltd System and method for mitigating evaporation from reservoirs
AU2009270331B2 (en) * 2008-07-15 2016-02-18 Marecon Pty Ltd System and method for mitigating evaporation from reservoirs

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