GB868161A - Improvements in or relating to sealing means for an opening - Google Patents
Improvements in or relating to sealing means for an openingInfo
- Publication number
- GB868161A GB868161A GB524059A GB524059A GB868161A GB 868161 A GB868161 A GB 868161A GB 524059 A GB524059 A GB 524059A GB 524059 A GB524059 A GB 524059A GB 868161 A GB868161 A GB 868161A
- Authority
- GB
- United Kingdom
- Prior art keywords
- opening
- shoes
- pressure
- sealing
- wall
- 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
- 238000007789 sealing Methods 0.000 title abstract 9
- 244000273618 Sphenoclea zeylanica Species 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J13/00—Covers or similar closure members for pressure vessels in general
- F16J13/02—Detachable closure members; Means for tightening closures
- F16J13/08—Detachable closure members; Means for tightening closures attached by one or more members actuated to project behind a part or parts of the frame
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sealing Devices (AREA)
Abstract
868,161. Closures for resisting fluid pressure. BIRFIELD ENGINEERING Ltd. Feb. 16, 1960 [Feb. 16, 1959], No. 5240/59. Class 123(1) [Also in Group XXVIII] Sealing means for an opening, e.g. the upper end of a standpipe, comprises a cup-shaped, flexible sealing member 9 the side wall 9a of which is adapted to seal against the wall of the opening, pressure means 12, abutment means 1 adapted to be fixed relatively to the opening, and wedge means 6 surrounded by the pressure means. Movement of the wedge means outwardly of the opening urges the pressure means laterally outwards to press the member 9 into sealing engagement with the wall of the opening, movement of the pressure means with the wedge means being limited by the abutment means. Positive pressure within the opening may act to produce or assist the sealing engagement. As shown, the member 9 is clamped to the annular wedge member 6 which is carried on a hollow stem 5, and the conical wedging surface 10 of the member 6 is held in contact with the inclined inner surfaces of an annular ring of segmental pressure shoes by an annular spring 13 seating in a groove 15 formed in the shoes. The spring has an internal wire 14 which holds the shoes together in the event of breakage of the spring, and the shoes are provided with spaced lands 20 the innermost land 22 of which projects slightly in a lateral direction. In sealing the opening the closure plug is locked in the opening by cams 3 engaging in a recess 4 in the pipe 2 and the stem 5 is moved outwardly so that the shoes 12 engage the abutment ring 1, further movement of the stem causing a wedging reaction between the ring and shoes to urge the latter outwardly so that the land 22 of the shoes press a localised continuous area of the wall 9a of the sealing member into sealing engagement with the wall of the opening; as wedging action continues the remaining lands 20 in turn press against the wall 9a so that the sealing area progressively increases. The member 9 is ridged at 23 to facilitate flexing thereof. The pressure ring may be continuous and sufficiently flexible to undergo the requisite expansion and is preferably of split form, or a number of split rings may be arranged side-byside in an axial sense; the ring or rings may be mounted on a split ring carrier expanded by the wedge means.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB524059A GB868161A (en) | 1959-02-16 | 1959-02-16 | Improvements in or relating to sealing means for an opening |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB524059A GB868161A (en) | 1959-02-16 | 1959-02-16 | Improvements in or relating to sealing means for an opening |
Publications (1)
Publication Number | Publication Date |
---|---|
GB868161A true GB868161A (en) | 1961-05-17 |
Family
ID=9792345
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB524059A Expired GB868161A (en) | 1959-02-16 | 1959-02-16 | Improvements in or relating to sealing means for an opening |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB868161A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2172956A (en) * | 1985-02-26 | 1986-10-01 | Peco Uk Limited | Closure |
GB2214601A (en) * | 1988-01-22 | 1989-09-06 | Andre Engineering Company Limi | Closure for pipe or vessel |
-
1959
- 1959-02-16 GB GB524059A patent/GB868161A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2172956A (en) * | 1985-02-26 | 1986-10-01 | Peco Uk Limited | Closure |
GB2172956B (en) * | 1985-02-26 | 1989-06-14 | Peco Uk Limited | Closure |
GB2214601A (en) * | 1988-01-22 | 1989-09-06 | Andre Engineering Company Limi | Closure for pipe or vessel |
GB2214601B (en) * | 1988-01-22 | 1992-06-17 | Andre Engineering Company Limi | Closure for pipe or vessel |
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