GB516169A - Improvements in bases or caps for electron discharge tubes - Google Patents

Improvements in bases or caps for electron discharge tubes

Info

Publication number
GB516169A
GB516169A GB17177/39A GB1717739A GB516169A GB 516169 A GB516169 A GB 516169A GB 17177/39 A GB17177/39 A GB 17177/39A GB 1717739 A GB1717739 A GB 1717739A GB 516169 A GB516169 A GB 516169A
Authority
GB
United Kingdom
Prior art keywords
prongs
cap
boss
valve
caps
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
GB17177/39A
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.)
Hygrade Sylvania Corp
Original Assignee
Hygrade Sylvania Corp
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 Hygrade Sylvania Corp filed Critical Hygrade Sylvania Corp
Publication of GB516169A publication Critical patent/GB516169A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/50—Means forming part of the tube or lamps for the purpose of providing electrical connection to it
    • H01J5/54—Means forming part of the tube or lamps for the purpose of providing electrical connection to it supported by a separate part, e.g. base
    • 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
    • H01J19/02—Electron-emitting electrodes; Cathodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/02—Vessels; Containers; Shields associated therewith; Vacuum locks
    • H01J5/12—Double-wall vessels or containers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J5/00—Details relating to vessels or to leading-in conductors common to two or more basic types of discharge tubes or lamps
    • H01J5/48—Means forming part of the tube or lamp for the purpose of supporting it
    • 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

Landscapes

  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

516,169. Thermionic-valve caps. HYGRADE SYLVANIA CORPORATION. May 17, 1938, Nos. 17177/39 and 17178/39. Convention dates, May 28, 1937, and Feb. 8, 1938. Divided out of 516,110, and 516,111, [both in Group XL]. [Class 38 (i)] A cap or base for shielding the prongs of a valve having a flat header 32 of glass into which the lead-in prongs 35, 39 are sealed, is formed of a metal cup 9, 71 having a central boss 18, 75 and apertures through which the prongs extend. The apertures may be in the form of large windows 10, 11, 12, Fig. 2, through each of which two prongs 3 .... 8 pass. Or a circular aperture 34a, Fig. 5, may be provided for each prong, a boss 34 formed on the header 32 fitting into each aperture. The boss 75 may form an earthing connection engaging a grounded contact spring 78 in the socket and one prong 39 may then be connected to the cap 71 by a strap 79. An outer metal casing enclosing the valve envelope may be provided and connected to the metal cap or base. Specification 516,167, [Group XL], also is referred to.
GB17177/39A 1937-05-28 1938-05-17 Improvements in bases or caps for electron discharge tubes Expired GB516169A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US145198A US2238025A (en) 1937-05-28 1937-05-28 Electron discharge device

Publications (1)

Publication Number Publication Date
GB516169A true GB516169A (en) 1939-12-22

Family

ID=22512024

Family Applications (3)

Application Number Title Priority Date Filing Date
GB14722/38A Expired GB516111A (en) 1937-05-28 1938-05-17 Improvements in electron discharge tubes
GB17177/39A Expired GB516169A (en) 1937-05-28 1938-05-17 Improvements in bases or caps for electron discharge tubes
GB14721/38A Expired GB516110A (en) 1937-05-28 1938-05-17 Improvements in electron discharge tubes

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB14722/38A Expired GB516111A (en) 1937-05-28 1938-05-17 Improvements in electron discharge tubes

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB14721/38A Expired GB516110A (en) 1937-05-28 1938-05-17 Improvements in electron discharge tubes

Country Status (3)

Country Link
US (1) US2238025A (en)
FR (1) FR838493A (en)
GB (3) GB516111A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE857538C (en) * 1941-06-26 1952-12-01 Telefunken Gmbh Putty-free, twist-proof attachment of a base to the pipe piston

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2490110A (en) * 1945-10-31 1949-12-06 Int Standard Electric Corp Vacuum tube
US3956658A (en) * 1945-11-28 1976-05-11 The United States Of America As Represented By The United States Energy Research And Development Administration Low impedance switch
FR925404A (en) * 1946-03-27 1947-09-03 Radio Electr Soc Fr Seasoning of vacuum tubes
US2934588A (en) * 1958-05-08 1960-04-26 Bell Telephone Labor Inc Semiconductor housing structure
US4720155A (en) * 1986-04-04 1988-01-19 Amphenol Corporation Databus coupler electrical connector

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE857538C (en) * 1941-06-26 1952-12-01 Telefunken Gmbh Putty-free, twist-proof attachment of a base to the pipe piston

Also Published As

Publication number Publication date
GB516111A (en) 1939-12-22
GB516110A (en) 1939-12-22
FR838493A (en) 1939-03-07
US2238025A (en) 1941-04-08

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