GB565485A - Improvements in or relating to the manufacture of electric vacuum tubes - Google Patents

Improvements in or relating to the manufacture of electric vacuum tubes

Info

Publication number
GB565485A
GB565485A GB6354/43A GB635443A GB565485A GB 565485 A GB565485 A GB 565485A GB 6354/43 A GB6354/43 A GB 6354/43A GB 635443 A GB635443 A GB 635443A GB 565485 A GB565485 A GB 565485A
Authority
GB
United Kingdom
Prior art keywords
rods
tube
disc
glass
gas
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
GB6354/43A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables 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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB6354/43A priority Critical patent/GB565485A/en
Priority to US517945A priority patent/US2454834A/en
Publication of GB565485A publication Critical patent/GB565485A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/24—Manufacture or joining of vessels, leading-in conductors or bases
    • H01J9/32—Sealing leading-in conductors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/92—Means forming part of the tube for the purpose of providing electrical connection to it

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

565,485. Uniting metal to glass. STANDARD TELEPHONES & CABLES, Ltd., and POWERS, S. J. April 21, 1943, No. 6354. [Class 56] [Also in Group XXXVI] A base assembly for an electric vacuum or gas-filled tube, such as a cathode-ray tube, or a thermionic valve having electrodes mounted in a gas-filled or evacuated envelope, is formed from a disc 10, Fig. 1, of fusible material such as glass, or quartz, provided with a series of peripheral slots 12 in which the electrodes 14, Fig. 3, are placed so that beads 15 of fusible material on the rods 14 rest in the slots. The parts are assembled in a lower die 16 which is formed with apertures 17 to receive the rods 14 and also with an aperture to receive a tube 11 integral with the disc 10 for subsequently acting to exhaust or fill the tube with gas. An upper die 18 formed with apertures 19 is closed on the lower one, and the dies are heated to fuse the glass &c. to cause the metal rods to unite with the disc 10, and the process is facilitated by a tool 21 which is rolled around the edge of the base 10 to form a beading 20. The process enables the rods 14 to be spread apart widely. Specification 565,486, [Group XL], is referred to.
GB6354/43A 1943-04-21 1943-04-21 Improvements in or relating to the manufacture of electric vacuum tubes Expired GB565485A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB6354/43A GB565485A (en) 1943-04-21 1943-04-21 Improvements in or relating to the manufacture of electric vacuum tubes
US517945A US2454834A (en) 1943-04-21 1944-01-12 Manufacture of base assemblies for electric discharge tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6354/43A GB565485A (en) 1943-04-21 1943-04-21 Improvements in or relating to the manufacture of electric vacuum tubes

Publications (1)

Publication Number Publication Date
GB565485A true GB565485A (en) 1944-11-13

Family

ID=9812972

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6354/43A Expired GB565485A (en) 1943-04-21 1943-04-21 Improvements in or relating to the manufacture of electric vacuum tubes

Country Status (2)

Country Link
US (1) US2454834A (en)
GB (1) GB565485A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2660004A (en) * 1950-06-28 1953-11-24 Rca Corp Support fixture for supporting pronged structures
US4612029A (en) * 1985-07-18 1986-09-16 The United States Of America As Represented By The United States Department Of Energy Method and apparatus for performing in-situ vacuum-assisted metal to glass sealing

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US850029A (en) * 1906-06-19 1907-04-09 George H Meeker Method of sealing metal in glass.
US872530A (en) * 1907-04-18 1907-12-03 George H Meeker Method of sealing metal in glass.
US2195483A (en) * 1937-08-28 1940-04-02 Rca Corp Stem machine
US2334784A (en) * 1937-11-20 1943-11-23 Sylvania Electric Prod Method for manufacturing unitary stem and plug-in bases for electron tubes and the like
US2318653A (en) * 1938-12-30 1943-05-11 Westinghouse Electric & Mfg Co Discharge lamp and stem therefor
US2340879A (en) * 1939-02-24 1944-02-08 Raytheon Production Corp Method of making molded stems
US2339850A (en) * 1940-06-08 1944-01-25 Standard Telephones Cables Ltd Method of forming and assembling vacuum tube supports

Also Published As

Publication number Publication date
US2454834A (en) 1948-11-30

Similar Documents

Publication Publication Date Title
US2402029A (en) Electron device and method of manufacture
GB565485A (en) Improvements in or relating to the manufacture of electric vacuum tubes
GB644985A (en) Improvements in electron guns
GB496555A (en) Improved method of making electron discharge devices
GB998486A (en) Improvements in or relating to cathode ray tubes
GB550551A (en) Improvements in and relating to gettering arrangements for highly evacuated envelopes of electron discharge tubes
US3923189A (en) Quartz to glass seal
US2810283A (en) Photoflash lamp
US2918763A (en) Method of making a pressure filled lamp
GB577738A (en) Improvements relating to sealing conductors through exhaust tubes of evacuated vitreous envelopes
GB838779A (en) Improvements in seals for electric discharge lamps
GB563776A (en) Method of fabricating vacuum tube
GB474706A (en) Improvements relating to glass-to-metal seals
GB621813A (en) Improvements in electron discharge tubes
GB559800A (en) Method of forming lead-in seals for enclosed electrical apparatus
GB459469A (en) Improvements in or relating to vacuum tight seals for electron discharge devices
GB643149A (en) Improvements relating to the manufacture of electron tubes
GB514967A (en) Improvements in and relating to electric discharge devices
GB553350A (en) Improvements in or relating to metal-to-glass seals of medium size
GB504934A (en) Improvements in closures for evacuated envelopes and method of manufacturing the same
GB585677A (en) Improvements in the sealing of tubular conductors in electron discharge devices
GB415398A (en) Improvements relating to indirectly heated cathodes for electron discharge devices
GB561599A (en) Improvements in methods and means for sealing electron discharge tubes
GB565486A (en) Improvements in or relating to the manufacture of electric vacuum tubes
GB204910A (en) Improvements in electric discharge tubes and the like