GB400648A - Improvements in and relating to electron discharge devices - Google Patents

Improvements in and relating to electron discharge devices

Info

Publication number
GB400648A
GB400648A GB1214032A GB1214032A GB400648A GB 400648 A GB400648 A GB 400648A GB 1214032 A GB1214032 A GB 1214032A GB 1214032 A GB1214032 A GB 1214032A GB 400648 A GB400648 A GB 400648A
Authority
GB
United Kingdom
Prior art keywords
wire
screen grid
welded
insulating
grid
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
GB1214032A
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.)
THOMAS CHARLES BLACK
Ferranti International PLC
Original Assignee
THOMAS CHARLES BLACK
Ferranti PLC
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 THOMAS CHARLES BLACK, Ferranti PLC filed Critical THOMAS CHARLES BLACK
Priority to GB1214032A priority Critical patent/GB400648A/en
Publication of GB400648A publication Critical patent/GB400648A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J19/00—Details of vacuum tubes of the types covered by group H01J21/00
    • H01J19/42—Mounting, supporting, spacing, or insulating of electrodes or of electrode assemblies
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
    • H01J2893/0002—Construction arrangements of electrode systems

Landscapes

  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

.400,648. Thermionic valves. FERRANTI, Ltd., SUTTON, R. W., and BLACK, T. C., Hollinwood, Lancashire. April 27, 1932, No. 12140. [Class 39 (i).] The anode elements of a screenedgrid valve are supported on the screen grid by a U-shaped member, the ends and an intermediate part of which are brought into engagement with refractory insulators supported on the screen grid. As shown, the ends of a U-shaped wire b carrying flat or flattened cylindrical anode elements a, fit in steatite sockets e secured by washers to a flanged part d of the screen grid c. A metal tube g is fitted over a grooved insulating peg f secured to the grid, and is deformed so as to engage with the groove, the tube being subsequently welded to the middle of the wire b and the end flattened on to and welded to a lead h. In a modification, the ends of the wire b are inserted in metal tubes fitting over insulating-pegs and a wire, welded to the middle of the wire b, fits in an insulating socket mounted on its screen grid.
GB1214032A 1932-04-27 1932-04-27 Improvements in and relating to electron discharge devices Expired GB400648A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1214032A GB400648A (en) 1932-04-27 1932-04-27 Improvements in and relating to electron discharge devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1214032A GB400648A (en) 1932-04-27 1932-04-27 Improvements in and relating to electron discharge devices

Publications (1)

Publication Number Publication Date
GB400648A true GB400648A (en) 1933-10-27

Family

ID=9999065

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1214032A Expired GB400648A (en) 1932-04-27 1932-04-27 Improvements in and relating to electron discharge devices

Country Status (1)

Country Link
GB (1) GB400648A (en)

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