GB441559A - Improvements in and relating to the sealing of vitreous envelopes - Google Patents

Improvements in and relating to the sealing of vitreous envelopes

Info

Publication number
GB441559A
GB441559A GB2199834A GB2199834A GB441559A GB 441559 A GB441559 A GB 441559A GB 2199834 A GB2199834 A GB 2199834A GB 2199834 A GB2199834 A GB 2199834A GB 441559 A GB441559 A GB 441559A
Authority
GB
United Kingdom
Prior art keywords
tube
envelope
sealing
exhausting
wires
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
GB2199834A
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.)
Osram GmbH
Original Assignee
Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
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 Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH filed Critical Patent Treuhand Gesellschaft fuer Elektrische Gluehlampen mbH
Priority to GB2199834A priority Critical patent/GB441559A/en
Publication of GB441559A publication Critical patent/GB441559A/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
    • H01J9/326—Sealing leading-in conductors into a discharge lamp or a gas-filled discharge device making pinched-stem or analogous seals

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Windings For Motors And Generators (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Manipulator (AREA)

Abstract

441,559. Discharge apparatus. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Patent Treuhand- Ges. f³r Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin) July 27, 1934, No. 21998. [Class 39 (i)] [See also Group XI] In the manufacture of a discharge device having a vitreous envelope, more particularly an envelope a of an easily worked glass which is flashed internally with a glass b adapted to resist the action of the electric discharge, the sealing of the leading-in wires and attachment of an exhausting or pumping tube is performed in the following stages in the order given : (1) A circular open end of the envelope is formed into a tube c, Fig. 3, having an oval cross-section, (2) the ends c<1>, c<2> of the oval section are compressed so that leading-in wires e, f, Fig. 5, placed within these ends are embedded therein, but the middle portion c<3> of the oval section is left uncompressed, (3) a butt-joint is formed between the end of an exhausting-tube i and the central part h of the pinch, so that it prolongs the channel g. The tube i is sealed off after the vessel has been evacuated. Specification 147,831, [Class 39 (ii)], is referred to.
GB2199834A 1934-07-27 1934-07-27 Improvements in and relating to the sealing of vitreous envelopes Expired GB441559A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2199834A GB441559A (en) 1934-07-27 1934-07-27 Improvements in and relating to the sealing of vitreous envelopes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2199834A GB441559A (en) 1934-07-27 1934-07-27 Improvements in and relating to the sealing of vitreous envelopes

Publications (1)

Publication Number Publication Date
GB441559A true GB441559A (en) 1936-01-22

Family

ID=10172273

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2199834A Expired GB441559A (en) 1934-07-27 1934-07-27 Improvements in and relating to the sealing of vitreous envelopes

Country Status (1)

Country Link
GB (1) GB441559A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE966121C (en) * 1938-03-26 1957-07-11 Aeg Process for the manufacture of a pinch foot for electrical discharge vessels made of glass

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE966121C (en) * 1938-03-26 1957-07-11 Aeg Process for the manufacture of a pinch foot for electrical discharge vessels made of glass

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