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GB474568A - Improvements in ionic rectifying tubes - Google Patents

Improvements in ionic rectifying tubes

Info

Publication number
GB474568A
GB474568A GB8176/37A GB817637A GB474568A GB 474568 A GB474568 A GB 474568A GB 8176/37 A GB8176/37 A GB 8176/37A GB 817637 A GB817637 A GB 817637A GB 474568 A GB474568 A GB 474568A
Authority
GB
United Kingdom
Prior art keywords
envelope
sleeve
ionic
mercury
march
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
GB8176/37A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB474568A publication Critical patent/GB474568A/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
    • H01J17/04—Electrodes; Screens

Landscapes

  • Lasers (AREA)

Abstract

474,568. Discharge valves. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. March 19, 1937, No. 8176. Convention date, March 20, 1936. [Class 39 (i)] In ionic rectifying tubes of the type in which at least one of the electrode supports, for example the support 7 of the anode 3 is protected by an insulating sleeve 9 one end of which projects into a cavity in the electrode and the other end projects into a tubular glass portion 11 of the envelope, a resilient buffer 8 is interposed between one end of the sleeve 9 and the adjoining part of the tube to avoid rupture by the clamping action or thermal expansion. Preferably the member 8 is a helical spring made of refractory metal such as tungsten or molybdenum. The protecting sleeve is made of steatite or magnesium oxide. The cathode supports 5, 6 and the anode support 7 are sealed into the envelope as described in Specification 196,231, [Class 39 (ii)]. The envelope has a gas filling such as argon at a pressure of 7 mm. of mercury and contains a small quantity of mercury 4 for maintaining the vapour pressure.
GB8176/37A 1936-03-20 1937-03-19 Improvements in ionic rectifying tubes Expired GB474568A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE474568X 1936-03-20

Publications (1)

Publication Number Publication Date
GB474568A true GB474568A (en) 1937-11-03

Family

ID=6541743

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8176/37A Expired GB474568A (en) 1936-03-20 1937-03-19 Improvements in ionic rectifying tubes

Country Status (1)

Country Link
GB (1) GB474568A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2492665A (en) * 1945-03-29 1949-12-27 Sylvania Electric Prod Thyratron tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2492665A (en) * 1945-03-29 1949-12-27 Sylvania Electric Prod Thyratron tube

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