GB472126A - Improvements in and relating to methods of sealing metal into quartz - Google Patents

Improvements in and relating to methods of sealing metal into quartz

Info

Publication number
GB472126A
GB472126A GB787636A GB787636A GB472126A GB 472126 A GB472126 A GB 472126A GB 787636 A GB787636 A GB 787636A GB 787636 A GB787636 A GB 787636A GB 472126 A GB472126 A GB 472126A
Authority
GB
United Kingdom
Prior art keywords
foil
assembly
wire
thickness
sealing
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
GB787636A
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.)
JOHN GORDON BRETT
British Thomson Houston Co Ltd
Original Assignee
JOHN GORDON BRETT
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 JOHN GORDON BRETT, British Thomson Houston Co Ltd filed Critical JOHN GORDON BRETT
Priority to GB787636A priority Critical patent/GB472126A/en
Priority to DEA82227D priority patent/DE705974C/en
Publication of GB472126A publication Critical patent/GB472126A/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
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C27/00—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing
    • C03C27/02—Joining pieces of glass to pieces of other inorganic material; Joining glass to glass other than by fusing by fusing glass directly to metal

Abstract

472,126. Sealing metal into vitreous material by heat. BRITISH THOMSONHOUSTON CO., Ltd., GILSON, C., and BRETT, J. G. March 16, 1936, No. 7876. [Class 36] A method of obtaining a lead-in assembly for sealing into a quartz wall of an electric discharge device or the like consists in securing to or forming integral with a thin metal foil a lead-in wire and an electrode support, and then placing the assembly in an electrolytic bath to clean and reduce in thickness the assembly so that the foil after treatment has a thickness of at most 0À0006 inch. The foil may consist of molybdenum or tungsten. Since the electrolytic action is greater at the edge of the foil, a feather edge is produced and the subsequent sealing facilitated. In the example, the central portion 3 is pressed out from a molybdenum wire 1 and the assembly treated in an electrolytic bath to reduce the portion 3 to foil of the requisite thickness. A cathode 2 is welded to one end of the wire 1.
GB787636A 1936-03-16 1936-03-16 Improvements in and relating to methods of sealing metal into quartz Expired GB472126A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB787636A GB472126A (en) 1936-03-16 1936-03-16 Improvements in and relating to methods of sealing metal into quartz
DEA82227D DE705974C (en) 1936-03-16 1937-03-07 Process for the vacuum-tight melting of a metal foil in quartz

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB787636A GB472126A (en) 1936-03-16 1936-03-16 Improvements in and relating to methods of sealing metal into quartz

Publications (1)

Publication Number Publication Date
GB472126A true GB472126A (en) 1937-09-16

Family

ID=9841478

Family Applications (1)

Application Number Title Priority Date Filing Date
GB787636A Expired GB472126A (en) 1936-03-16 1936-03-16 Improvements in and relating to methods of sealing metal into quartz

Country Status (2)

Country Link
DE (1) DE705974C (en)
GB (1) GB472126A (en)

Also Published As

Publication number Publication date
DE705974C (en) 1941-05-15

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