GB216207A - Improvements in and relating to the manufacture of vacuum tubes, and particularly of thermionic vacuum tubes - Google Patents

Improvements in and relating to the manufacture of vacuum tubes, and particularly of thermionic vacuum tubes

Info

Publication number
GB216207A
GB216207A GB519323A GB519323A GB216207A GB 216207 A GB216207 A GB 216207A GB 519323 A GB519323 A GB 519323A GB 519323 A GB519323 A GB 519323A GB 216207 A GB216207 A GB 216207A
Authority
GB
United Kingdom
Prior art keywords
vacuum tubes
manufacture
envelope
relating
thermionic
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
GB519323A
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.)
CLAUDE SEYMOUR
HENRY GEORGE HUGHES
THOMAS EDWARD GOLDUP
Original Assignee
CLAUDE SEYMOUR
HENRY GEORGE HUGHES
THOMAS EDWARD GOLDUP
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 CLAUDE SEYMOUR, HENRY GEORGE HUGHES, THOMAS EDWARD GOLDUP filed Critical CLAUDE SEYMOUR
Priority to GB519323A priority Critical patent/GB216207A/en
Publication of GB216207A publication Critical patent/GB216207A/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
    • H01J9/385—Exhausting vessels

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

216,207. Seymour, C., Hodgson, B., Hughes, R. G., and Goldup, T. E. Feb. 22, 1923. Vacuum tubes.-In the manufacture of thermionic valves or other tubes, the assembly of the parts in the envelope and the subsequent working operations such as welding or cementing are carried out in an inert gas such as nitrogen. The gas may be passed through the envelope during these operations, and, subsequently, the envelope or the parts may be baked in hydrogen at such a temperature that any oxide is reduced. It is stated that the time necessary for bombardment is materially reduced.
GB519323A 1923-02-22 1923-02-22 Improvements in and relating to the manufacture of vacuum tubes, and particularly of thermionic vacuum tubes Expired GB216207A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB519323A GB216207A (en) 1923-02-22 1923-02-22 Improvements in and relating to the manufacture of vacuum tubes, and particularly of thermionic vacuum tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB519323A GB216207A (en) 1923-02-22 1923-02-22 Improvements in and relating to the manufacture of vacuum tubes, and particularly of thermionic vacuum tubes

Publications (1)

Publication Number Publication Date
GB216207A true GB216207A (en) 1924-05-22

Family

ID=9791452

Family Applications (1)

Application Number Title Priority Date Filing Date
GB519323A Expired GB216207A (en) 1923-02-22 1923-02-22 Improvements in and relating to the manufacture of vacuum tubes, and particularly of thermionic vacuum tubes

Country Status (1)

Country Link
GB (1) GB216207A (en)

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