GB244867A - Improvements in or connected with the manufacture of thermionic valves - Google Patents

Improvements in or connected with the manufacture of thermionic valves

Info

Publication number
GB244867A
GB244867A GB2496724A GB2496724A GB244867A GB 244867 A GB244867 A GB 244867A GB 2496724 A GB2496724 A GB 2496724A GB 2496724 A GB2496724 A GB 2496724A GB 244867 A GB244867 A GB 244867A
Authority
GB
United Kingdom
Prior art keywords
wire
getter
manufacture
heated
attached
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
GB2496724A
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.)
WILLIAM JOHN PATTISON
Original Assignee
WILLIAM JOHN PATTISON
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 WILLIAM JOHN PATTISON filed Critical WILLIAM JOHN PATTISON
Priority to GB2496724A priority Critical patent/GB244867A/en
Publication of GB244867A publication Critical patent/GB244867A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J7/00—Details not provided for in the preceding groups and common to two or more basic types of discharge tubes or lamps
    • H01J7/14—Means for obtaining or maintaining the desired pressure within the vessel
    • H01J7/18—Means for absorbing or adsorbing gas, e.g. by gettering
    • H01J7/186—Getter supports

Landscapes

  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

244,867. Pattison, W. J., Holyoak, A. J., and Turner, W. L. Oct. 21, 1924. Vacuum tubes. - A getter b such as magnesium is attached to a tungsten or other high-resistance wire a which is connected between two electrodes, such as the grid d and anode c, and is heated by passage of current to flash the getter. The wire is subsequently fused by applying a high potential. The getter may be attached to the wire by spot welding. The wire may be heated for a few minutes to improve the vacuum before the flashing operation takes place.
GB2496724A 1924-10-21 1924-10-21 Improvements in or connected with the manufacture of thermionic valves Expired GB244867A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2496724A GB244867A (en) 1924-10-21 1924-10-21 Improvements in or connected with the manufacture of thermionic valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2496724A GB244867A (en) 1924-10-21 1924-10-21 Improvements in or connected with the manufacture of thermionic valves

Publications (1)

Publication Number Publication Date
GB244867A true GB244867A (en) 1925-12-31

Family

ID=10220086

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2496724A Expired GB244867A (en) 1924-10-21 1924-10-21 Improvements in or connected with the manufacture of thermionic valves

Country Status (1)

Country Link
GB (1) GB244867A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE739330C (en) * 1936-01-26 1943-09-21 Siemens Ag Arrangement for gettering electrical discharge vessels with a metallic vessel wall
DE749599C (en) * 1928-03-01 1944-11-27 Arrangement for the evaporation of metals
US9720421B2 (en) 2011-10-17 2017-08-01 Cameron International Corporation Subsea production system with multiple location master control station system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE749599C (en) * 1928-03-01 1944-11-27 Arrangement for the evaporation of metals
DE739330C (en) * 1936-01-26 1943-09-21 Siemens Ag Arrangement for gettering electrical discharge vessels with a metallic vessel wall
US9720421B2 (en) 2011-10-17 2017-08-01 Cameron International Corporation Subsea production system with multiple location master control station system

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