GB504449A - Improvements in and relating to bases for vacuum electric discharge devices - Google Patents

Improvements in and relating to bases for vacuum electric discharge devices

Info

Publication number
GB504449A
GB504449A GB31238/38A GB3123838A GB504449A GB 504449 A GB504449 A GB 504449A GB 31238/38 A GB31238/38 A GB 31238/38A GB 3123838 A GB3123838 A GB 3123838A GB 504449 A GB504449 A GB 504449A
Authority
GB
United Kingdom
Prior art keywords
pins
glass
envelope
tube
sealed
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
GB31238/38A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston 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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB504449A publication Critical patent/GB504449A/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
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
    • H01R33/74—Devices having four or more poles, e.g. holders for compact fluorescent lamps
    • H01R33/76—Holders with sockets, clips, or analogous contacts adapted for axially-sliding engagement with parallely-arranged pins, blades, or analogous contacts on counterpart, e.g. electronic tube socket
    • H01R33/7607—Holders with sockets, clips, or analogous contacts adapted for axially-sliding engagement with parallely-arranged pins, blades, or analogous contacts on counterpart, e.g. electronic tube socket the parallel terminal pins having a circular disposition
    • H01R33/7614—Holders with sockets, clips, or analogous contacts adapted for axially-sliding engagement with parallely-arranged pins, blades, or analogous contacts on counterpart, e.g. electronic tube socket the parallel terminal pins having a circular disposition the terminals being connected to individual wires
    • H01R33/7628—Holders with sockets, clips, or analogous contacts adapted for axially-sliding engagement with parallely-arranged pins, blades, or analogous contacts on counterpart, e.g. electronic tube socket the parallel terminal pins having a circular disposition the terminals being connected to individual wires the wires being connected using solder

Landscapes

  • Connections Arranged To Contact A Plurality Of Conductors (AREA)
  • Common Detailed Techniques For Electron Tubes Or Discharge Tubes (AREA)
  • Vessels, Lead-In Wires, Accessory Apparatuses For Cathode-Ray Tubes (AREA)

Abstract

504,449. Two-part couplings; sealing lead-in wires; thermionic valves. BRITISH THOMSON HOUSTON CO., Ltd. Oct. 28, 1938, No. 31238. Convention date, Oct. 30, 1937. [Classes 36 and 38 (i)] [Also in Groups XI and XL] A base for a thermionic valve having a metal envelope or an envelope partially of glass consists of a meta! disc 3 that closes the envelope 1 and carries in insulating mountings the contact pins 7 and has welded thereto a tube 13 for exhausting the envelope. This tube serves also as a locating pin for determining the position of the valve in its holder. If the tube is sealed by flattening the end 33 the holder has a spring clip 31 to fit it, the hole in the mounting plate, formed of two layers of heavy varnished 'cambric 20, being made larger than those to receive the pins 7. If the tube 13 is sealed by a glass cap 15, Fig. 9, it is enclosed in a cover 16 of larger diameter than the pins 7 or the tube itself may be of a different diameter and sealed by a metal ball soldered to its end. The pins 7 are sealed into eyelets 5, Fig. 5, welded to the disc 3 and made of a metal having the same coefficient of expansion as glass, such as that described in Specification 449,807, [Group XXIII], so that glass seals 6 can be used to support, and insulate the pins 7. In order to prevent damage to the seals by lateral pressure on the pins, a neck 9 may be formed in the lead-in stem 4, or the same effect may be produced by thickening the portion of the stem to which the glass seal is applied. When the envelope 1 is made of glass, the disc 3 is made of the same metal as the eyelets 5. Specifications 340,049 and 352.945, [both in Group XL], also are referred to.
GB31238/38A 1937-10-30 1938-10-28 Improvements in and relating to bases for vacuum electric discharge devices Expired GB504449A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US171938A US2174682A (en) 1937-10-30 1937-10-30 Tube base and socket

Publications (1)

Publication Number Publication Date
GB504449A true GB504449A (en) 1939-04-25

Family

ID=22625713

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31238/38A Expired GB504449A (en) 1937-10-30 1938-10-28 Improvements in and relating to bases for vacuum electric discharge devices

Country Status (4)

Country Link
US (1) US2174682A (en)
DE (1) DE908285C (en)
FR (1) FR845282A (en)
GB (1) GB504449A (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2605435A (en) * 1941-10-01 1952-07-29 Schlumberger Well Surv Corp Construction of geiger-muller tube
BE457265A (en) * 1943-08-18
US2476387A (en) * 1944-05-25 1949-07-19 Hartford Nat Bank & Trust Co Method of exhausting and closing vessels
US2638660A (en) * 1945-04-03 1953-05-19 Philips Lab Inc Electrical insulator
US2552062A (en) * 1947-05-27 1951-05-08 Reynolds William Radio tube receptacle
US2858521A (en) * 1954-01-19 1958-10-28 Young Sidney Geoffrey Socket connectors
US3009012A (en) * 1958-09-12 1961-11-14 Gen Electric Header construction
US3076953A (en) * 1959-03-13 1963-02-05 Clifford E Sloop Spacer for spring-jaw type spade terminal
US3147361A (en) * 1962-06-15 1964-09-01 Westinghouse Electric Corp Vacuum tight joint and method of making such joint
US3422300A (en) * 1966-06-30 1969-01-14 Westinghouse Electric Corp Ceramic arc tube and closure member construction
US3522487A (en) * 1969-04-15 1970-08-04 Nat Beryllia Corp Electronic device with metal pin united to metallized ceramic surface
US3988053A (en) * 1975-01-20 1976-10-26 Dodenhoff John A Hermetic terminal
DE3732855A1 (en) * 1987-09-29 1989-04-06 Siemens Ag PLUG
IN2012DE02309A (en) * 2012-07-25 2015-10-16 Flowil Int Lighting

Also Published As

Publication number Publication date
FR845282A (en) 1939-08-17
DE908285C (en) 1954-04-05
US2174682A (en) 1939-10-03

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