GB109188A - Improvements in and relating to Electric Incandescent Arc Devices. - Google Patents

Improvements in and relating to Electric Incandescent Arc Devices.

Info

Publication number
GB109188A
GB109188A GB18506/16A GB1850616A GB109188A GB 109188 A GB109188 A GB 109188A GB 18506/16 A GB18506/16 A GB 18506/16A GB 1850616 A GB1850616 A GB 1850616A GB 109188 A GB109188 A GB 109188A
Authority
GB
United Kingdom
Prior art keywords
iodine
inert gas
pressure
relating
tungsten
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
GB18506/16A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB109188A publication Critical patent/GB109188A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00Gas-discharge or vapour-discharge lamps
    • H01J61/02Details
    • H01J61/12Selection of substances for gas fillings; Specified operating pressure or temperature
    • H01J61/125Selection of substances for gas fillings; Specified operating pressure or temperature having an halogenide as principal component
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00Gas-filled discharge tubes with solid cathode
    • H01J17/02Details
    • H01J17/04Electrodes; Screens
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00Gas-filled discharge tubes with solid cathode
    • H01J17/02Details
    • H01J17/04Electrodes; Screens
    • H01J17/06Cathodes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00Gas-filled discharge tubes with solid cathode
    • H01J17/50Thermionic-cathode tubes
    • H01J17/52Thermionic-cathode tubes with one cathode and one anode
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00Gas-filled discharge tubes with solid cathode
    • H01J17/50Thermionic-cathode tubes
    • H01J17/58Thermionic-cathode tubes with more than one cathode or anode
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00Details of vacuum tubes of the types covered by group H01J21/00
    • H01J19/02Electron-emitting electrodes; Cathodes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00Vacuum tubes
    • H01J21/02Tubes with a single discharge path
    • H01J21/06Tubes with a single discharge path having electrostatic control means only
    • H01J21/16Tubes with a single discharge path having electrostatic control means only with external electrostatic control means and with or without internal control electrodes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00Gas-discharge or vapour-discharge lamps
    • H01J61/02Details
    • H01J61/24Means for obtaining or maintaining the desired pressure within the vessel
    • H01J61/26Means for absorbing or adsorbing gas, e.g. by gettering; Means for preventing blackening of the envelope
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J7/00Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
    • H01J7/14Means for obtaining or maintaining the desired pressure within the vessel
    • H01J7/18Means for absorbing or adsorbing gas, e.g. by gettering
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/06Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes without control electrode or semiconductor devices without control electrode
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00Discharge tubes and lamps
    • H01J2893/0001Electrodes and electrode systems suitable for discharge tubes or lamps

Abstract

109,188. British Thomson - Houston Co., (General Electric Co.). Dec. 27, 1916. Drawings to Specification. Arc lamps. vacuum tubes.-A sealed envelope enclosing electrodes, one at least of which operates at incandescence, contains iodine with or without inert gas such as argon. The iodine may be introduced from a side-tube which is afterwards sealed off. When the apparatus is in use, ihe pressure of iodine vapour is at least half a millimetre of mercury; a pressure of 50 mm. is advantageous. That of the inert gas may be several centimetres. Iodine reduces the drop in electric pressure, and the liability to conduct in the wrong direction. A rectifier may have an incandescent cathode of tungsten or other material and an anode of tungsten, molybdenum, copper, or, when inert gas is present, graphite. Specification 5557/15 is referred to.
GB18506/16A 1915-10-30 1916-12-27 Improvements in and relating to Electric Incandescent Arc Devices. Expired GB109188A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US484517TA 1915-10-30 1915-10-30

Publications (1)

Publication Number Publication Date
GB109188A true GB109188A (en) 1917-09-06

Family

ID=10077111

Family Applications (2)

Application Number Title Priority Date Filing Date
GB16427/16A Expired GB153331A (en) 1915-10-30 1916-11-16 Improvements in and relating to enclosed electric arc devices
GB18506/16A Expired GB109188A (en) 1915-10-30 1916-12-27 Improvements in and relating to Electric Incandescent Arc Devices.

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB16427/16A Expired GB153331A (en) 1915-10-30 1916-11-16 Improvements in and relating to enclosed electric arc devices

Country Status (4)

Country Link
US (1) US1554720A (en)
FR (5) FR482974A (en)
GB (2) GB153331A (en)
NL (1) NL15695C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE739389C (en) * 1936-01-26 1943-09-24 Siemens Ag Arrangement for the evaporation of a getter material from a tube to be heated from the outside and opening into the interior of a discharge vessel
NL88347C (en) * 1951-08-18

Also Published As

Publication number Publication date
FR482974A (en) 1917-05-16
FR21965E (en) 1921-04-21
FR21964E (en) 1921-04-21
FR21966E (en) 1921-04-21
FR484517A (en) 1917-10-16
US1554720A (en) 1925-09-22
NL15695C (en)
GB153331A (en) 1920-11-11

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