GB412465A - Metal vapour rectifier - Google Patents

Metal vapour rectifier

Info

Publication number
GB412465A
GB412465A GB28559/33A GB2855933A GB412465A GB 412465 A GB412465 A GB 412465A GB 28559/33 A GB28559/33 A GB 28559/33A GB 2855933 A GB2855933 A GB 2855933A GB 412465 A GB412465 A GB 412465A
Authority
GB
United Kingdom
Prior art keywords
grid
iron
chromium
anode
vapour
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
GB28559/33A
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.)
English Electric Co Ltd
Original Assignee
English Electric Co Ltd
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 English Electric Co Ltd filed Critical English Electric Co Ltd
Publication of GB412465A publication Critical patent/GB412465A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J13/00—Discharge tubes with liquid-pool cathodes, e.g. metal-vapour rectifying tubes
    • H01J13/02—Details
    • H01J13/20—Control electrodes, e.g. grid
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J2893/00—Discharge tubes and lamps
    • H01J2893/0072—Disassembly or repair of discharge tubes
    • H01J2893/0088—Tubes with at least a solid principal cathode and solid anodes
    • H01J2893/009—Anode systems; Screens
    • H01J2893/0092—Anodic screens or grids

Landscapes

  • Coating By Spraying Or Casting (AREA)

Abstract

412,465. Metallic-vapour rectifiers. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London. Oct. 16, 1933, No. 28559. Convention date, Oct. 14, 1932. [Class 39 (i).] A grid associated with an anode of a metal-vapour rectifier comprises an annular cylindrical main part of a good heat-conducting metal, and a protective part of a material, such as iron, chromium, or molybdenum, having a higher melting point than the main part. The protective part may extend so as to form a sheathing completely covering the surface of the ring. In the example shown the grid 3 is provided with a cap 7 of molybdenum or other difficultly-fusible metal. The cap may also be a coating, applied to the grid at the end nearest the anode, for example, by spraying or plating. In a modification, an iron ring is welded to the grid at the end nearest the anode, and may also act as a support for the grid. The iron may be replaced by insulating material. In a further modification the grid may be of copper, coated entirely with a sheath of iron, chromium-iron or chromium. Grids having one or more concentric or eccentric rings may be used. The Specification as open to inspection under Sect. 91 comprises also the provision of grids, having in known manner an internal cavity for cooling purposes, with fine openings through which neutral mercury vapour may be admitted into the cavity. This subject-matter does not appear in the Specification as accepted.
GB28559/33A 1932-10-14 1933-10-16 Metal vapour rectifier Expired GB412465A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE412465X 1932-10-14

Publications (1)

Publication Number Publication Date
GB412465A true GB412465A (en) 1934-06-28

Family

ID=6436975

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28559/33A Expired GB412465A (en) 1932-10-14 1933-10-16 Metal vapour rectifier

Country Status (1)

Country Link
GB (1) GB412465A (en)

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