GB433437A - Improvements in electric discharge tubes - Google Patents

Improvements in electric discharge tubes

Info

Publication number
GB433437A
GB433437A GB10087/35A GB1008735A GB433437A GB 433437 A GB433437 A GB 433437A GB 10087/35 A GB10087/35 A GB 10087/35A GB 1008735 A GB1008735 A GB 1008735A GB 433437 A GB433437 A GB 433437A
Authority
GB
United Kingdom
Prior art keywords
discharge
electrode
tube
april
thermionic
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
GB10087/35A
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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 General Electric Co PLC filed Critical General Electric Co PLC
Publication of GB433437A publication Critical patent/GB433437A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/54—Igniting arrangements, e.g. promoting ionisation for starting
    • H01J61/545—Igniting arrangements, e.g. promoting ionisation for starting using an auxiliary electrode inside the vessel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F1/00—Platen presses, i.e. presses in which printing is effected by at least one essentially-flat pressure-applying member co-operating with a flat type-bed
    • B41F1/26—Details
    • B41F1/28—Sheet-conveying, -aligning or -clamping devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/52—Cooling arrangements; Heating arrangements; Means for circulating gas or vapour within the discharge space
    • H01J61/523—Heating or cooling particular parts of the lamp
    • H01J61/526—Heating or cooling particular parts of the lamp heating or cooling of electrodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Discharge Lamp (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • X-Ray Techniques (AREA)
  • Solid Thermionic Cathode (AREA)
  • Physical Vapour Deposition (AREA)

Abstract

433,437. Discharge apparatus. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent-Treuhand- Ges. f³r Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin) April 1, 1935, No. 10087. Convention date, April 7, 1934. [Class 39 (i)] In a discharge tube having thermionic main electrodes, the heating element 2 of each electrode is connected at one end to the supply and at the other end to a surrounding metal sheath 8. An auxiliary electrode 17 formed as a second sheath surrounding the first is connected through an insulated helical conductor 13 within the tube to an electrode similarly arranged at the other end (not shown), neither electrode being connected to the main electrodes. Initially, a discharge starts between the members 8, 17, and the auxiliary discharge current passing through the heaters 2 raises them to electron emitting temperature and initiates the main discharge. Springs 16 engaging the wall of the tube support the insulated conductor 13. The sheaths 8, 17 act as heat shields for the thermionic electrodes which may comprise heaters coated with emissive material, or enclosed in metal cylinders, or enclosing rods 3 of alkaline carths. Specification 410,558 is referred to.
GB10087/35A 1932-06-18 1935-04-01 Improvements in electric discharge tubes Expired GB433437A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE405514X 1932-06-18
DEP66311D DE588894C (en) 1932-06-18 1932-10-29 Electric light tubes with electrodes attached to the ends, in particular glow electrodes, and a wire accommodated inside the tube to facilitate ignition
DE433437X 1934-04-07
DEP69579D DE622897C (en) 1932-06-18 1934-06-16 Electric light tubes with electrodes attached to the ends, in particular glow electrodes

Publications (1)

Publication Number Publication Date
GB433437A true GB433437A (en) 1935-08-14

Family

ID=40852445

Family Applications (3)

Application Number Title Priority Date Filing Date
GB15724/33A Expired GB405514A (en) 1932-06-18 1933-05-31 Improvements in luminous electric discharge tubes
GB29703/33A Expired GB406620A (en) 1932-06-18 1933-10-26 Improvements in electric discharge tubes
GB10087/35A Expired GB433437A (en) 1932-06-18 1935-04-01 Improvements in electric discharge tubes

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB15724/33A Expired GB405514A (en) 1932-06-18 1933-05-31 Improvements in luminous electric discharge tubes
GB29703/33A Expired GB406620A (en) 1932-06-18 1933-10-26 Improvements in electric discharge tubes

Country Status (8)

Country Link
US (2) US1935702A (en)
AT (2) AT136749B (en)
CH (1) CH169496A (en)
DE (2) DE588894C (en)
DK (1) DK48842C (en)
FR (2) FR756151A (en)
GB (3) GB405514A (en)
NL (2) NL36151C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2444397A (en) * 1945-03-27 1948-06-29 Sylvania Electric Prod Electric discharge lamp
US2473413A (en) * 1945-05-17 1949-06-14 Cortese Ralph Electrode
US2930934A (en) * 1958-02-12 1960-03-29 Westinghouse Electric Corp Discharge lamp
FR2295563A2 (en) * 1974-12-16 1976-07-16 Central Eclairage Lab HIGH PRESSURE SODIUM VAPOR DISCHARGE LAMP

Also Published As

Publication number Publication date
CH169496A (en) 1934-05-31
FR46267E (en) 1936-04-08
US2085561A (en) 1937-06-29
DE588894C (en) 1933-11-29
AT145154B (en) 1936-04-10
AT136749B (en) 1934-03-10
NL36151C (en) 1935-08-15
GB406620A (en) 1934-03-01
NL40579C (en) 1937-04-15
FR756151A (en) 1933-12-05
US1935702A (en) 1933-11-21
DE622897C (en) 1935-12-09
GB405514A (en) 1934-02-08
DK48842C (en) 1934-06-04

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