GB844469A - Fabric seal for floating roof tank - Google Patents
Fabric seal for floating roof tankInfo
- Publication number
- GB844469A GB844469A GB31679/57A GB3167957A GB844469A GB 844469 A GB844469 A GB 844469A GB 31679/57 A GB31679/57 A GB 31679/57A GB 3167957 A GB3167957 A GB 3167957A GB 844469 A GB844469 A GB 844469A
- Authority
- GB
- United Kingdom
- Prior art keywords
- roof
- tank
- shell
- floating roof
- 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
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
- B65D88/42—Large containers having floating covers, e.g. floating roofs or blankets with sealing means between cover rim and receptacle
- B65D88/48—Large containers having floating covers, e.g. floating roofs or blankets with sealing means between cover rim and receptacle with fluid means acting on the seal
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
844,469. Tanks. CHICAGO BRIDGE & IRON CO. Oct. 10, 1957 [Feb. 13, 1957], No. 31679/57. Class 69 (1). A floating roof storage tank comprises a flexible, fabric pocket seal 113 located in the annular space between the floating roof 110 and the tank shell 111, a fluid in the pocket 113 and in direct contact therewith to maintain the sides of the pocket in direct contact sealing relationship to the roof and shell, and means for supporting the pocket from the floating roof 110, said means having an annular flexible support acting on the lower side of the pocket, said support being movable laterally in relation to said floating roof and attached to the floating roof. As shown in Figs. 2 and 3 the lower seal supporting member 129 is supported by means of a plurality of vertical bars 140, attached by means of a sleeve 141 to corresponding horizontal support arms 142 which are suspended from the lower portion of the floating roof 110 by inclined parallel hanger bars 143A, 143B. A bumper 148 is attached to each of the support bars 140. The bumpers bear against the interior surface 111 of the tank shell when the roof 110 is floating off-centre or at points of inward shell distortion. The lower portions of the tank are generally circular but sometimes the upper portions of the tank become distorted into an elliptical shape. The lower seal supporting member 129 is normally a circular ring. As the roof floats upwards with the filling of the tank the tank shell 111 will approach the bumpers 148 at the small diameter of the ellipse until contact is made. The continued upward movement of the roof will cause the tank shell to distort the member 129 inwardly at the minor diameter of the shell and outwardly at the major diameter. The hinge bars 143A, 143B are initially inclined at a small angle to the vertical so as to pre-tension the member 129. This pre-tensioning tends to carry the member 129 outwardly at the major diameter. In a modification shown in Fig. 5 the annular support which holds up the bottom portion of the fabric pocket is suspended from the upper annular support by wires 175. A bumper 176 is provided. A parallelogram support assembly supports the upper portions of the fabric seal.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US844469XA | 1957-06-13 | 1957-06-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB844469A true GB844469A (en) | 1960-08-10 |
Family
ID=22185016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB31679/57A Expired GB844469A (en) | 1957-06-13 | 1957-10-10 | Fabric seal for floating roof tank |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB844469A (en) |
-
1957
- 1957-10-10 GB GB31679/57A patent/GB844469A/en not_active Expired
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