GB631957A - Improvements in or relating to means for use in sealing air or gas passages and/or ducts - Google Patents
Improvements in or relating to means for use in sealing air or gas passages and/or ductsInfo
- Publication number
- GB631957A GB631957A GB2956846A GB2956846A GB631957A GB 631957 A GB631957 A GB 631957A GB 2956846 A GB2956846 A GB 2956846A GB 2956846 A GB2956846 A GB 2956846A GB 631957 A GB631957 A GB 631957A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blades
- members
- asbestos
- passageways
- webs
- 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
-
- 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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/165—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with a plurality of closure members
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
631,957. Hinged valves. AIR CONTROL INSTALLATIONS, Ltd., and BURGIN, J. Oct. 3, 1946, No. 29568. [Class 135] A butterfly-type valve for an air or gas conduit comprises a shaft 21 encircled by, and secured to, a tube 27 and rotatably mounted in bearings in the sides of the duct, rigid blades 13, 15 extending tangentially from the ends of a diameter of the tube, and rigid ledges 53, 57 constituting sealing abutments which are secured in parallel planes to the inner walls of the conduit and are spaced apart by an amount corresponding to the diametral separation of the blades. In the embodiment shown, a single rectangular passage is divided by a central partition 25 into two passageways, each of which is provided with a valve. The blades can be swung into the open position shown in dot-and-dash lines. The sealing abutments comprise U-shaped members bolted to the sides of the passageways and covered by asbestos cloth 55. In a modification, asbestos fabric is interposed between the members 53 and the walls to which they are attached, and the edges of the members 53 on which the blades 13, 15 seat are provided with blocks of asbestos encased in silicon rubber and gripped by channel members. When the gas being controlled is of a dusty nature, an aperture in the partition 25 permits any dust accumulating to be blown away. The blades 13, 15 are braced by webs 63, and steel sheets may be fitted over the webs to minimize flow losses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2956846A GB631957A (en) | 1946-10-03 | 1946-10-03 | Improvements in or relating to means for use in sealing air or gas passages and/or ducts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2956846A GB631957A (en) | 1946-10-03 | 1946-10-03 | Improvements in or relating to means for use in sealing air or gas passages and/or ducts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB631957A true GB631957A (en) | 1949-11-14 |
Family
ID=10293572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2956846A Expired GB631957A (en) | 1946-10-03 | 1946-10-03 | Improvements in or relating to means for use in sealing air or gas passages and/or ducts |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB631957A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2946554A (en) * | 1956-06-13 | 1960-07-26 | Desomatic Products Inc | Butterfly valve |
| US3269414A (en) * | 1963-12-09 | 1966-08-30 | Atlantic Res Corp | Multi-port flow-control valve |
| US3604458A (en) * | 1969-02-13 | 1971-09-14 | Modine Mfg Co | Temperature compensating damper structure |
-
1946
- 1946-10-03 GB GB2956846A patent/GB631957A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2946554A (en) * | 1956-06-13 | 1960-07-26 | Desomatic Products Inc | Butterfly valve |
| US3269414A (en) * | 1963-12-09 | 1966-08-30 | Atlantic Res Corp | Multi-port flow-control valve |
| US3604458A (en) * | 1969-02-13 | 1971-09-14 | Modine Mfg Co | Temperature compensating damper structure |
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