GB729962A - Improvements in or relating to systems for controlling the pressure of a gas in an enclosure - Google Patents
Improvements in or relating to systems for controlling the pressure of a gas in an enclosureInfo
- Publication number
- GB729962A GB729962A GB104053A GB104053A GB729962A GB 729962 A GB729962 A GB 729962A GB 104053 A GB104053 A GB 104053A GB 104053 A GB104053 A GB 104053A GB 729962 A GB729962 A GB 729962A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resistance
- barretter
- gas
- enclosure
- pressure
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J17/00—Gas-filled discharge tubes with solid cathode
- H01J17/02—Details
- H01J17/22—Means for obtaining or maintaining the desired pressure within the tube
- H01J17/26—Means for producing, introducing, or replenishing gas or vapour during operation of the tube
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/20—Control of fluid pressure characterised by the use of electric means
- G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
- G05D16/2066—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using controlling means acting on the pressure source
Landscapes
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Temperature (AREA)
Abstract
729,962. Maintaining high vacua. M. O. VALVE CO., Ltd., BOOTH, A. J., and COOK, K. G. Jan. 12, 1954 [Jan. 13, 1953], No. 1040/53. Class 8 (1). [Also in Group XL (a)] A system for controlling the gas pressure in an enclosure, such as for instance a hydrogen-filled thyratron, comprises a substance which absorbs the gas on cooling and evolves it on heating, the latter provided by a resistance heater with a barretter in series. In the arrangement shown, the substance used is the hydride of titanium or zirconium, in the form of pellets 13. These are heated by a resistance 14, which is in series with the barretter 18. Resistance and barretter are across the supply leads to the main cathode heater 9, so that the barretter tends to maintain the current through resistance 14 constant against fluctuations in the supply voltage, which would cause unwanted fluctuations in the temperature of resistance 14, and therefore in the equilibrium pressure of the hydrogen filling. The equilibrium temperature of resistance 14 is determined by the value of a resistor 19 in parallel with it ; this may be deliberately varied if required. A thermistor in parallel with resistance 14 may be used to compensate for temperature variations. According to the Provisional Specification the barretter may be within the envelope.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB104053A GB729962A (en) | 1953-01-13 | 1953-01-13 | Improvements in or relating to systems for controlling the pressure of a gas in an enclosure |
| FR1092004D FR1092004A (en) | 1953-01-13 | 1954-01-26 | Adjusting the pressure of a gas in an enclosure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB104053A GB729962A (en) | 1953-01-13 | 1953-01-13 | Improvements in or relating to systems for controlling the pressure of a gas in an enclosure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB729962A true GB729962A (en) | 1955-05-11 |
Family
ID=9715102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB104053A Expired GB729962A (en) | 1953-01-13 | 1953-01-13 | Improvements in or relating to systems for controlling the pressure of a gas in an enclosure |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR1092004A (en) |
| GB (1) | GB729962A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1179647B (en) * | 1960-05-27 | 1964-10-15 | Tesla Np | Gas discharge tubes with hydrogen filler and hydrogen regulator |
| GB2280539A (en) * | 1993-07-29 | 1995-02-01 | Litton Systems Inc | A thyratron |
-
1953
- 1953-01-13 GB GB104053A patent/GB729962A/en not_active Expired
-
1954
- 1954-01-26 FR FR1092004D patent/FR1092004A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1179647B (en) * | 1960-05-27 | 1964-10-15 | Tesla Np | Gas discharge tubes with hydrogen filler and hydrogen regulator |
| GB2280539A (en) * | 1993-07-29 | 1995-02-01 | Litton Systems Inc | A thyratron |
| FR2708784A1 (en) * | 1993-07-29 | 1995-02-10 | Litton Systems Inc | Thyratron with internally optimized tank tension. |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1092004A (en) | 1955-04-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3736360A (en) | Control system for vacuum furnaces | |
| US2667178A (en) | Liquid level control | |
| GB729962A (en) | Improvements in or relating to systems for controlling the pressure of a gas in an enclosure | |
| US3315063A (en) | Temperature control system | |
| GB1276365A (en) | Lightning arrester cooling apparatus | |
| GB1033432A (en) | Improvements in or relating to airborne flight data computing apparatus | |
| GB967494A (en) | Improvements relating to the automatic electric control of heat transfer systems | |
| US3170329A (en) | Temperature monitoring apparatus | |
| GB721572A (en) | Improvements in and relating to temperature compensating systems for electrical heating devices | |
| GB765151A (en) | Improvements relating to gaseous electron discharge tubes | |
| GB868061A (en) | Improvements relating to regulating arrangements for gaseous electric discharge devices | |
| GB1221692A (en) | Temperature control arrangement | |
| GB1127755A (en) | Method and device for adjusting and maintaining a preset gas pressure in closed vessels | |
| GB857860A (en) | Improvements in or relating to methods of preparing semiconductor devices | |
| GB844155A (en) | Improvements relating to electrostatically controlled arc discharge devices | |
| GB1141642A (en) | Improvements relating to the control of the output of fuel cells | |
| GB866029A (en) | Oxygen dispensing | |
| GB756650A (en) | Improvements in and relating to electric control systems | |
| GB895491A (en) | Improvements in or relating to anaesthetic and like gas-dispensing apparatus | |
| GB897220A (en) | Improvements relating to electrical circuits | |
| GB950064A (en) | Improvements in or relating to apparatus for stabilizing liquefied gas converters | |
| GB1354806A (en) | Installations comprising an electric arc with continuous operation | |
| GB838298A (en) | Improvements in or relating to electric protective relay devices | |
| GB897928A (en) | Improvements in or relating to electrical control systems | |
| GB871566A (en) | Improvements in or relating to automatic electronic controllers |