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GB461539A - Improvements relating to the electrode mounting and envelopes of electron discharge tubes - Google Patents

Improvements relating to the electrode mounting and envelopes of electron discharge tubes

Info

Publication number
GB461539A
GB461539A GB21157/36A GB2115736A GB461539A GB 461539 A GB461539 A GB 461539A GB 21157/36 A GB21157/36 A GB 21157/36A GB 2115736 A GB2115736 A GB 2115736A GB 461539 A GB461539 A GB 461539A
Authority
GB
United Kingdom
Prior art keywords
bolt
diaphragm
envelopes
thimbles
july
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
GB21157/36A
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 GB461539A publication Critical patent/GB461539A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/32—Seals for leading-in conductors
    • H01J5/40—End-disc seals, e.g. flat header
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0033—Vacuum connection techniques applicable to discharge tubes and lamps
    • H01J2893/0034—Lamp bases
    • H01J2893/0035—Lamp bases shaped as flat plates, in particular metallic

Landscapes

  • Lasers (AREA)

Abstract

461,539. Thermionic valves. BRITISH THOMSON - HOUSTON CO., Ltd. July 30, 1936, No. 21157. Convention date, July 31, 1935. [Class 39 (i)] In an electric discharge device a portion of the wall of the envelope consists of a flexible diaphragm 14 which carries an electrode ; rigidly mounted next to the diaphragm is a bridge 20 of insulating material in which a bolt is adjustably mounted, the head 21 of the bolt being welded to the diaphragm. As shown, a directly-heated, oxide-coated cathode 28 is carried by the diaphragm on two copper or steel rods 6, 7, silver soldered, brazed or welded to thimbles 8, 9. The thimbles are fused to glass supports by means such as are described in Specification 448,727, [Group XI]. By means of the bolt the relative disposition of the rods 6, 7 is adjustable and therefore the extension of the cathode. A locking plate may be provided for the bolt. The metal envelope 29 acts as the anode. Specification 404,299 also is referred to.
GB21157/36A 1935-07-31 1936-07-30 Improvements relating to the electrode mounting and envelopes of electron discharge tubes Expired GB461539A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US461539XA 1935-07-31 1935-07-31

Publications (1)

Publication Number Publication Date
GB461539A true GB461539A (en) 1937-02-18

Family

ID=21941900

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21157/36A Expired GB461539A (en) 1935-07-31 1936-07-30 Improvements relating to the electrode mounting and envelopes of electron discharge tubes

Country Status (1)

Country Link
GB (1) GB461539A (en)

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