GB571072A - Improvements in high pressure discharge tubes - Google Patents

Improvements in high pressure discharge tubes

Info

Publication number
GB571072A
GB571072A GB1771043A GB1771043A GB571072A GB 571072 A GB571072 A GB 571072A GB 1771043 A GB1771043 A GB 1771043A GB 1771043 A GB1771043 A GB 1771043A GB 571072 A GB571072 A GB 571072A
Authority
GB
United Kingdom
Prior art keywords
relay
shielded
lamp
pressure discharge
electrode
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
GB1771043A
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.)
HERBERT WILLIAM DENTON-INGHAM
Original Assignee
HERBERT WILLIAM DENTON-INGHAM
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 HERBERT WILLIAM DENTON-INGHAM filed Critical HERBERT WILLIAM DENTON-INGHAM
Priority to GB1771043A priority Critical patent/GB571072A/en
Publication of GB571072A publication Critical patent/GB571072A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/02—Details
    • H05B41/04—Starting switches
    • 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
    • H01J61/541—Igniting arrangements, e.g. promoting ionisation for starting using a bimetal switch

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

571,072. Discharge lamps. INGHAM, H. W. DENTON- (Lumalampan Aktiebolag.). Oct. 27, 1943, No. 17710. [Class 39 (i)] [Also in Group XXXV] A high-pressure discharge tube with a glow relay regulated by a bimetal strip in the preheating circuit, has this relay within the tube or an outer envelope containing it, the relay being shielded from the heat of the electrode. In the form shown, the relay 10 having bi-metal strips 11, 13 is shielded by a mica barrier 8 and screens 7 on the ends of the lamp and as an additional safeguard a thermal switch 19 may be provided in addition which opens when the electrodes reach their normal temperature. A lamp for D.C. is described, having one electrode only preheated and without switch 19. A series impedance in the form of an incandescent helix surrounding the discharge vessel may be used. The cathode may be activated with barium oxide.
GB1771043A 1943-10-27 1943-10-27 Improvements in high pressure discharge tubes Expired GB571072A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1771043A GB571072A (en) 1943-10-27 1943-10-27 Improvements in high pressure discharge tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1771043A GB571072A (en) 1943-10-27 1943-10-27 Improvements in high pressure discharge tubes

Publications (1)

Publication Number Publication Date
GB571072A true GB571072A (en) 1945-08-03

Family

ID=10099845

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1771043A Expired GB571072A (en) 1943-10-27 1943-10-27 Improvements in high pressure discharge tubes

Country Status (1)

Country Link
GB (1) GB571072A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2435814A1 (en) * 1978-09-05 1980-04-04 Philips Nv DISCHARGE LAMP IN VAPOR AND / OR GAS
NL8001339A (en) * 1979-03-28 1980-09-30 Mitsubishi Electric Corp METAL VAPOR DISCHARGE LAMP.
DE3124712A1 (en) * 1980-07-15 1982-03-25 Tokyo Shibaura Denki K.K., Kawasaki, Kanagawa HIGH PRESSURE GAS DISCHARGE LAMP

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2435814A1 (en) * 1978-09-05 1980-04-04 Philips Nv DISCHARGE LAMP IN VAPOR AND / OR GAS
NL8001339A (en) * 1979-03-28 1980-09-30 Mitsubishi Electric Corp METAL VAPOR DISCHARGE LAMP.
DE3124712A1 (en) * 1980-07-15 1982-03-25 Tokyo Shibaura Denki K.K., Kawasaki, Kanagawa HIGH PRESSURE GAS DISCHARGE LAMP

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