GB491282A - Device for indicating air flow in gas-proof chambers - Google Patents
Device for indicating air flow in gas-proof chambersInfo
- Publication number
- GB491282A GB491282A GB29844/37A GB2984437A GB491282A GB 491282 A GB491282 A GB 491282A GB 29844/37 A GB29844/37 A GB 29844/37A GB 2984437 A GB2984437 A GB 2984437A GB 491282 A GB491282 A GB 491282A
- Authority
- GB
- United Kingdom
- Prior art keywords
- conduit
- gas
- nov
- flange
- window
- 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
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/01—Control of flow without auxiliary power
- G05D7/0146—Control of flow without auxiliary power the in-line sensing element being a piston or float without flexible member or spring
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Fluid-Damping Devices (AREA)
- Check Valves (AREA)
Abstract
491,282. Valves ; flow meters. DEGEA AKT.-GES. (AUERGES.). Nov. 1, 1937, No. 29844. Convention date, Nov. 25, 1936. [Classes 69 (i) and 135] A non-return valve for use on the air outlet conduit from gas-proof chambers in which air is maintained at a pressure above atmospheric has a conical valve member 7 with a flange 8 adapted to seat on a tubular member inserted in the conduit 2. The flange on the valve cooperates with scale 10 which can be viewed through a window 4 in the end of the conduit to indicate the excess pressure in and the flow from the chamber. Both inlet and outlet are fitted with screens 3, 6 and the inlet may be masked by a rotatable slide 11. The scale may be etched on the glass of the window. In a modification the valve member in place of being slidably mounted on a pin 9, is secured to a spindle attached to a dashpot piston. In this form the seat is arranged coaxially in the main conduit.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE491282X | 1936-11-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB491282A true GB491282A (en) | 1938-08-30 |
Family
ID=6544249
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB29844/37A Expired GB491282A (en) | 1936-11-25 | 1937-11-01 | Device for indicating air flow in gas-proof chambers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB491282A (en) |
-
1937
- 1937-11-01 GB GB29844/37A patent/GB491282A/en not_active Expired
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