GB559800A - Method of forming lead-in seals for enclosed electrical apparatus - Google Patents

Method of forming lead-in seals for enclosed electrical apparatus

Info

Publication number
GB559800A
GB559800A GB947/43A GB94743A GB559800A GB 559800 A GB559800 A GB 559800A GB 947/43 A GB947/43 A GB 947/43A GB 94743 A GB94743 A GB 94743A GB 559800 A GB559800 A GB 559800A
Authority
GB
United Kingdom
Prior art keywords
tube
sleeve
seals
flare
jan
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
GB947/43A
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 GB559800A publication Critical patent/GB559800A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
    • H01J9/32—Sealing leading-in conductors
    • H01J9/323—Sealing leading-in conductors into a discharge lamp or a gas-filled discharge device

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Fuses (AREA)

Abstract

559,800. Uniting metal to vitreous material BRITISH THOMSON-HOUSTON CO., Ltd. Jan. 19, 1943, No. 947. Convention date, Jan. 21, 1942. [Class 36] In constructing an evacuated electronic discharge device a stem press is built up in such a manner that the lead-in wires 62 are united to an evacuating tube 58 by means of a glass sleeve 60 which is placed around an enlarged tubular member 57 integral with tube 58 so as to enclose the wires 62. The tube 60 is heated uniformly by burners 64 so as to fuse it, and it is joined to the tube 57 by pressure if desired so as to seal the conductors 62 hermetically. A flare 67 is then fused on to the sleeve 60 either in the central position shown, or to the enlarged part c, Fig. 5, at the bottom of the sleeve. The flare is then built into an electronic discharge device of known kind. Specification 369,349, [Group XI], is referred to.
GB947/43A 1942-01-21 1943-01-19 Method of forming lead-in seals for enclosed electrical apparatus Expired GB559800A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US559800XA 1942-01-21 1942-01-21

Publications (1)

Publication Number Publication Date
GB559800A true GB559800A (en) 1944-03-06

Family

ID=22001358

Family Applications (1)

Application Number Title Priority Date Filing Date
GB947/43A Expired GB559800A (en) 1942-01-21 1943-01-19 Method of forming lead-in seals for enclosed electrical apparatus

Country Status (2)

Country Link
FR (1) FR944088A (en)
GB (1) GB559800A (en)

Also Published As

Publication number Publication date
FR944088A (en) 1949-03-25

Similar Documents

Publication Publication Date Title
US2219573A (en) Method of making composite glassmetal articles
US2219574A (en) Composite glass-metal article
US2391572A (en) Method for producing electronic devices
US2093567A (en) Thermionic tubes and the manufacture thereof
GB559800A (en) Method of forming lead-in seals for enclosed electrical apparatus
US2104166A (en) Method of making a glass seal
GB519355A (en) Improvements in and relating to methods of hermetically sealing vitreous or ceramic vessels
GB533106A (en) Improvements in and relating to methods of exhausting and sealing envelopes having a metal portion to which the seal is applied
US2837880A (en) Lamp sealing method
GB510984A (en) Electric discharge deivces and methods of manufacturing the same
US2583388A (en) Conducting seal for high-pressure lamps
GB418906A (en) Improvements relating to seals for current leads into quartz vessels
GB788655A (en) Improvements in electric discharge lamps
GB440999A (en) Improvements in and relating to vapour electric discharge devices
GB484555A (en) Improvements in methods of introducing electric conductors into hermetically-sealed vitreous vessels
US2320204A (en) Method of stem construction for vacuum tubes
GB1249637A (en) Metal-to-vitreous silica seal for lead-in wires rated for high current intensities and method of forming such seals
US2219925A (en) Vacuum tube device
US2108519A (en) Stem assembly for electron discharge devices
US3395007A (en) Method for forming electric lamps and similar devices
GB688482A (en) Tubular glass-to-metal seals and methods of making same
GB565485A (en) Improvements in or relating to the manufacture of electric vacuum tubes
GB577738A (en) Improvements relating to sealing conductors through exhaust tubes of evacuated vitreous envelopes
GB451311A (en) Improvements in and relating to methods of hermetically sealing receptacles
GB486256A (en) Improvements in methods of making vacuum tight connections between metal and ceramicsubstances