GB222510A - Improvements in glass to metal seals particularly for vacuum tube devices - Google Patents

Improvements in glass to metal seals particularly for vacuum tube devices

Info

Publication number
GB222510A
GB222510A GB22941/24A GB2294124A GB222510A GB 222510 A GB222510 A GB 222510A GB 22941/24 A GB22941/24 A GB 22941/24A GB 2294124 A GB2294124 A GB 2294124A GB 222510 A GB222510 A GB 222510A
Authority
GB
United Kingdom
Prior art keywords
glass
tube
edge
metal
welded
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
GB22941/24A
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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical 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 Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Publication of GB222510A publication Critical patent/GB222510A/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
    • H01J5/26—Vacuum-tight joints between parts of vessel between insulating and conductive parts of vessel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J13/00—Discharge tubes with liquid-pool cathodes, e.g. metal-vapour rectifying tubes
    • H01J13/02—Details
    • H01J13/04—Main electrodes; Auxiliary anodes
    • H01J13/16—Anodes; Auxiliary anodes for maintaining the discharge
    • 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
    • H01J2893/0041—Direct connection between insulating and metal elements, in particular via glass material
    • H01J2893/0043—Glass-to-metal or quartz-to-metal, e.g. by soldering
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0072—Disassembly or repair of discharge tubes
    • H01J2893/0088—Tubes with at least a solid principal cathode and solid anodes
    • H01J2893/009—Anode systems; Screens
    • H01J2893/0091—Anode supporting means

Abstract

222,510. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Kirwer, C.). Sept. 28, 1923, [Convention date]. Joints formed by welding.-A glass to metal seal between tubular members is formed by folding a portion of glass over the end of the metal tube, and fusing or welding it thereto, the glass tube being fused subsequently to the glass portion. As shown in Fig 2 a copper tube 4 has a knife-edge portion 10, on both sides of which a folded glass-portion 11, 12 is welded. This is effected as shown in Fig. 3 by inserting the edge in the end portion 11 of a tube 15 and heating in a flame, the glass being worked and rolled on the metallic surface by means of a metal or graphite plate until the surface is fully wetted by the glass. The tube 15 is then severed and the portion 12 folded over and sealed in a similar manner to the inner surface of the edge 10. The glass flange thus formed may be welded by a butt-or lap-joint to a glass tube. In the joint shown in Fig. 9 the end 22 of a thin portion of the tube 4 is left out of contact with glass 5.
GB22941/24A 1923-09-28 1924-09-29 Improvements in glass to metal seals particularly for vacuum tube devices Expired GB222510A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US222510XA 1923-09-28 1923-09-28

Publications (1)

Publication Number Publication Date
GB222510A true GB222510A (en) 1925-10-01

Family

ID=21808643

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22941/24A Expired GB222510A (en) 1923-09-28 1924-09-29 Improvements in glass to metal seals particularly for vacuum tube devices

Country Status (1)

Country Link
GB (1) GB222510A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007033630A1 (en) * 2005-09-20 2007-03-29 Narva Lichtquellen Gmbh + Co. Kg Glass-metal connection, in particular for a vacuum-tube solar collector

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007033630A1 (en) * 2005-09-20 2007-03-29 Narva Lichtquellen Gmbh + Co. Kg Glass-metal connection, in particular for a vacuum-tube solar collector
US8097318B2 (en) 2005-09-20 2012-01-17 Narva Lichtquellen Gmbh + Co. Kg Glass-metal connection, in particular for a vacuum-tube solar collector

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