GB1047824A - Process for fabricating tubes - Google Patents

Process for fabricating tubes

Info

Publication number
GB1047824A
GB1047824A GB4054/64A GB405464A GB1047824A GB 1047824 A GB1047824 A GB 1047824A GB 4054/64 A GB4054/64 A GB 4054/64A GB 405464 A GB405464 A GB 405464A GB 1047824 A GB1047824 A GB 1047824A
Authority
GB
United Kingdom
Prior art keywords
cylinder
extensions
tube
extension
sealed
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
GB4054/64A
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 GB1047824A publication Critical patent/GB1047824A/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
    • H01J9/38—Exhausting, degassing, filling, or cleaning vessels
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01K—ELECTRIC INCANDESCENT LAMPS
    • H01K3/00—Apparatus or processes adapted to the manufacture, installing, removal, or maintenance of incandescent lamps or parts thereof
    • H01K3/20—Sealing-in wires directly into the envelope

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

The glass envelope of a discharge tube is manufactured by a process designed to minimize the entry into the tube of hydrogen from the burner combustion gases used to seal the tube-in which the discharge tube cylinder is provided with extensions at either end, an electrode supported by a lead-in wire is held within the assembly, a purge gas is introduced, and the glass is heated, and sealed, by a burner adjacent the junction of the extension and the cylinder, whereafter the residual extension is removed. The cylinder 1 (Figs. 1 to 8, not shown) with its extensions 3 and 4 and exhaust tube 2 is preferably held vertically, first one and then the other way up, each end being sealed in succession while in the lowermost position. The extensions are of reduced diameter with respect to the cylinder; an apertured baffle plate 11 is disposed around the lowermost extension; and nitrogen is maintained within the cylinder via exhaust tube 2, to reduce the flow of hydrogen from the water-cooled burners 20 and 21 to the ends of, and thence within, the extensions.
GB4054/64A 1963-02-04 1964-01-30 Process for fabricating tubes Expired GB1047824A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US256049A US3285725A (en) 1963-02-04 1963-02-04 Process for fabricating arc tubes

Publications (1)

Publication Number Publication Date
GB1047824A true GB1047824A (en) 1966-11-09

Family

ID=22970912

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4054/64A Expired GB1047824A (en) 1963-02-04 1964-01-30 Process for fabricating tubes

Country Status (2)

Country Link
US (1) US3285725A (en)
GB (1) GB1047824A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3124711A1 (en) * 1980-07-01 1982-09-16 General Electric Co., Schenectady, N.Y. "ARC LAMP AND METHOD FOR THEIR PRODUCTION"

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4574008A (en) * 1984-07-11 1986-03-04 Sony Corporation Apparatus for mounting an electron gun assembly within the glass neck of a cathode ray tube

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1655820A (en) * 1926-05-22 1928-01-10 Perryman Electric Company Inc Vacuum tube
US2235515A (en) * 1938-07-15 1941-03-18 Westinghouse Electric & Mfg Co Manufacture of miniature lamps
US2215641A (en) * 1938-11-25 1940-09-24 Westinghouse Electric & Mfg Co Electrode sealing-in
US2496303A (en) * 1944-07-15 1950-02-07 Westinghouse Electric Corp Tipping-off operation and product
US2491237A (en) * 1947-05-17 1949-12-13 Westinghouse Electric Corp Manufacture of miniature lamps
US3113010A (en) * 1958-06-19 1963-12-03 Gen Electric Method and apparatus for forming tubular electric lamps and similar devices

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3124711A1 (en) * 1980-07-01 1982-09-16 General Electric Co., Schenectady, N.Y. "ARC LAMP AND METHOD FOR THEIR PRODUCTION"

Also Published As

Publication number Publication date
US3285725A (en) 1966-11-15

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