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 enclosure

Info

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
Application number
GB104053A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MO Valve Co Ltd
Original Assignee
MO Valve Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by MO Valve Co Ltd filed Critical MO Valve Co Ltd
Priority to GB104053A priority Critical patent/GB729962A/en
Priority to FR1092004D priority patent/FR1092004A/en
Publication of GB729962A publication Critical patent/GB729962A/en
Expired legal-status Critical Current

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.
GB104053A 1953-01-13 1953-01-13 Improvements in or relating to systems for controlling the pressure of a gas in an enclosure Expired GB729962A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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

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