GB1481105A - Open/shut valve position indicator and control unit - Google Patents
Open/shut valve position indicator and control unitInfo
- Publication number
- GB1481105A GB1481105A GB3180774A GB3180774A GB1481105A GB 1481105 A GB1481105 A GB 1481105A GB 3180774 A GB3180774 A GB 3180774A GB 3180774 A GB3180774 A GB 3180774A GB 1481105 A GB1481105 A GB 1481105A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- open
- lamp
- closed
- lamps
- 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
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0058—Optical means, e.g. light transmission, observation ports
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
- F17D5/06—Preventing, monitoring, or locating loss using electric or acoustic means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Arrangements Of Lighting Devices For Vehicle Interiors, Mounting And Supporting Thereof, Circuits Therefore (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
1481105 Display and control DOBBIE MeINNES MARINE Ltd 29 May 1975 [18 July 1974] 31807/74 Headings G4H and G5C Valve-condition indicating apparatus includes a plurality of lamps operated in dependence on the condition of a valve and the position of a rotatable member. Fig. 1 shows part of a mimic diagram with 4 members A, each rotatable manually using a diametral bar B to control a respective valve. Fig. 2 shows one such member A, its valve F and 2 limit switches G of the valve. The member A contains 4 lamps L (two shown) visible by virtue of A being transparent or translucent, A also having an upstanding peripheral rim acting as a lens to permit observation from the side. Manual rotation of A operates a switch SW1 using a cam J, and pressing A against a spring K closes a switch SW2. Circuity M (Fig. 2) is shown in Fig. 3 including the limit switches G at MS1, MS2 and the lamps L at 20, 21, 22, 23. When the valve is fully open or fully closed, MS1 is open or MS2 is closed respectively, to give an open or closed circuit respectively via a Zener barrier ZB, to energize a relay RLA or RLB respectively, via a thresholding amplifier AMP1 or AMP2 respectively, the relay energizing a green "open" lamp 21 or a red "closed" lamp 23. If the valve is to be moved to its other position, switch SW1 is reversed, thus de-energizing lamp 21 or 23, energizing a white "opening" lamp 20 or a white "closing" lamp 22, and supplying a control voltage via 10 or 11 to the valve. As the valve moves from its fully open or fully closed position, MS1 and MS2 take the positions shown to connect resistor R10 into the circuit whereby neither amplifier AMP1, AMP2 is producing an output and both relays RLA, RLB are de-energized so neither of lamps 21, 23 is lit. When the limit is reached (fully open or fully closed) MS1, or MS2 produces the state first mentioned with 21 or 23 lit. In case of a short or open circuit in connection with MS1, MS2, switch SW2 is provided to de-energize relays RLA, RLB to permit control using SW1 irrespective of MS1, MS2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3180774A GB1481105A (en) | 1975-05-29 | 1975-05-29 | Open/shut valve position indicator and control unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3180774A GB1481105A (en) | 1975-05-29 | 1975-05-29 | Open/shut valve position indicator and control unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1481105A true GB1481105A (en) | 1977-07-27 |
Family
ID=10328713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3180774A Expired GB1481105A (en) | 1975-05-29 | 1975-05-29 | Open/shut valve position indicator and control unit |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1481105A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2165079A (en) * | 1984-09-29 | 1986-04-03 | Tyler Refrigeration Gmbh | Means for monitoring and controlling refrigeration plants and heat pumps |
| CN111237503A (en) * | 2020-03-09 | 2020-06-05 | 杭州师范大学钱江学院 | Fully-stable three-position four-way rotary reversing valve and working position switching method thereof |
| CN111561601A (en) * | 2020-05-08 | 2020-08-21 | 西安普特流体控制有限公司 | Safety valve safety increasing control device and state monitoring and evaluation method |
-
1975
- 1975-05-29 GB GB3180774A patent/GB1481105A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2165079A (en) * | 1984-09-29 | 1986-04-03 | Tyler Refrigeration Gmbh | Means for monitoring and controlling refrigeration plants and heat pumps |
| CN111237503A (en) * | 2020-03-09 | 2020-06-05 | 杭州师范大学钱江学院 | Fully-stable three-position four-way rotary reversing valve and working position switching method thereof |
| CN111237503B (en) * | 2020-03-09 | 2022-03-01 | 杭州师范大学钱江学院 | Fully-stable three-position four-way rotary reversing valve and working position switching method thereof |
| CN111561601A (en) * | 2020-05-08 | 2020-08-21 | 西安普特流体控制有限公司 | Safety valve safety increasing control device and state monitoring and evaluation method |
| CN111561601B (en) * | 2020-05-08 | 2022-04-01 | 西安普特流体控制有限公司 | Safety valve safety increasing control device and state monitoring and evaluation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |