GB743964A - An improved valve block for hydraulic pressure balance - Google Patents
An improved valve block for hydraulic pressure balanceInfo
- Publication number
- GB743964A GB743964A GB34295/53A GB3429553A GB743964A GB 743964 A GB743964 A GB 743964A GB 34295/53 A GB34295/53 A GB 34295/53A GB 3429553 A GB3429553 A GB 3429553A GB 743964 A GB743964 A GB 743964A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pressure
- fluid
- plunger
- valve block
- valve
- 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
- G05D16/00—Control of fluid pressure
- G05D16/04—Control of fluid pressure without auxiliary power
- G05D16/10—Control of fluid pressure without auxiliary power the sensing element being a piston or plunger
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
743,964. Testing pressure gauges. HART & ZN., INSTRUMENTEN-EN APPARATENFABRIEK N.V., W.C.T. Dec. 9, 1953, No. 34295/53. Class 106 (2). A valve block for use in balancing hydraulic pressures, for example when calibrating manometers, comprises a plunger 2, Fig. 2, having at least three pressure surfaces 3, 4, 5, passages for connecting said pressure surfaces to a pressure supply 33, and at least two valve elements 11, 21 for putting said pressure surfaces into operation or for rendering them inoperative. In operation, weights are placed on the plunger 2 and fluid is pumped into the block until the plunger lifts, the fluid pressure needed depending upon the setting of the valves 11 and 21. As shown in Fig. 3a the valves 11 and 21 are closed so that the pressure fluid acts on the surface 4 only, surfaces 3 and 5 being vented to atmosphere through passages 7 and 19. In Fig. 3b valve 21 is opened such that the surface 5 is also acted on by the pressure fluid and the passage 19 to atmosphere is sealed. Figs. 3c and 3d illustrate further alternatives. Fluid is supplied to the connection 33 by means of a pump, the gauge 10 to be calibrated being coupled to the supply pipe between the pump and the connection 33.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB34295/53A GB743964A (en) | 1953-12-09 | 1953-12-09 | An improved valve block for hydraulic pressure balance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB34295/53A GB743964A (en) | 1953-12-09 | 1953-12-09 | An improved valve block for hydraulic pressure balance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB743964A true GB743964A (en) | 1956-01-25 |
Family
ID=10363837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB34295/53A Expired GB743964A (en) | 1953-12-09 | 1953-12-09 | An improved valve block for hydraulic pressure balance |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB743964A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5300503A (en) * | 1991-11-01 | 1994-04-05 | Fmc Corporation | Insecticidal 4,6-diamino-1,2-dihydro-1,3,5-triazine derivatives |
-
1953
- 1953-12-09 GB GB34295/53A patent/GB743964A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5300503A (en) * | 1991-11-01 | 1994-04-05 | Fmc Corporation | Insecticidal 4,6-diamino-1,2-dihydro-1,3,5-triazine derivatives |
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