GB643149A - Improvements relating to the manufacture of electron tubes - Google Patents

Improvements relating to the manufacture of electron tubes

Info

Publication number
GB643149A
GB643149A GB4343/47A GB434347A GB643149A GB 643149 A GB643149 A GB 643149A GB 4343/47 A GB4343/47 A GB 4343/47A GB 434347 A GB434347 A GB 434347A GB 643149 A GB643149 A GB 643149A
Authority
GB
United Kingdom
Prior art keywords
bulb
header
mouth
manufacture
improvements relating
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
GB4343/47A
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.)
GTE Sylvania Inc
Original Assignee
Sylvania Electric Products Inc
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 Sylvania Electric Products Inc filed Critical Sylvania Electric Products Inc
Publication of GB643149A publication Critical patent/GB643149A/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
    • H01J5/20—Seals between parts of vessels
    • H01J5/22—Vacuum-tight joints between parts of vessel
    • H01J5/24—Vacuum-tight joints between parts of vessel between insulating parts of vessel
    • 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
    • H01J2893/0037—Solid sealing members other than lamp bases
    • H01J2893/0038—Direct connection between two insulating elements, in particular via glass material
    • H01J2893/0039—Glass-to-glass connection, e.g. by soldering

Landscapes

  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

643,149. Discharge apparatus. SYLVANIA ELECTRIC PRODUCTS, Inc. Feb. 14, 1947, No. 4343. Convention date, Nov. 27, 1943. [Class 39 (i)] A header 13 carrying an electrode assembly 17 is sealed to the bulb of an electron tube 8 by supporting the bulb, mouth uppermost, at one station of an intermittently-rotated turntable, placing the header on the open mouth and heating the adjacent peripheries of the header and mouth. Neutral gas is admitted by pipe 9 to the interior of the bulb which, together with the weight of the header, causes the mouth of the bulb to take the somewhat bulged form shown in Fig. 2. The assembly is now indexed to the next station where rollers 19, 20 are permitted to descend into contact with the bulb and complete the fusion and shaping as shown in Fig. 3.
GB4343/47A 1943-11-27 1947-02-14 Improvements relating to the manufacture of electron tubes Expired GB643149A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US643149XA 1943-11-27 1943-11-27

Publications (1)

Publication Number Publication Date
GB643149A true GB643149A (en) 1950-09-15

Family

ID=22055079

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4343/47A Expired GB643149A (en) 1943-11-27 1947-02-14 Improvements relating to the manufacture of electron tubes

Country Status (1)

Country Link
GB (1) GB643149A (en)

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