GB654724A - Improvements in or relating to methods of making glass bases for electron discharge and other devices - Google Patents

Improvements in or relating to methods of making glass bases for electron discharge and other devices

Info

Publication number
GB654724A
GB654724A GB2150948A GB2150948A GB654724A GB 654724 A GB654724 A GB 654724A GB 2150948 A GB2150948 A GB 2150948A GB 2150948 A GB2150948 A GB 2150948A GB 654724 A GB654724 A GB 654724A
Authority
GB
United Kingdom
Prior art keywords
glass
die
electron discharge
relating
methods
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
GB2150948A
Inventor
Leslie George Wellstead
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.)
EMI Ltd
Electrical and Musical Industries Ltd
Original Assignee
EMI Ltd
Electrical and Musical Industries 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 EMI Ltd, Electrical and Musical Industries Ltd filed Critical EMI Ltd
Priority to GB2150948A priority Critical patent/GB654724A/en
Publication of GB654724A publication Critical patent/GB654724A/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

654,724. Glass-to-metal seals. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Aug. 14, 1948, No. 21509. [Class 36] A glass base for an electron discharge device is made by inserting lead-in conductors 3 in apertures in a die 2, surrounding them with a length 4 of hard glass tubing and placing a cup-shaped element 5 of glass on the die 2 so that the base of the cup rests on the die with a small contact area. The assembly is then heated to make the glass parts 4 and 5 plastic and a die 1 is brought towards the die 2 to shape the glass to the desired configuration. Owing to the small contact area between the glass 5 and the die 2, the conduction of heat away from the glass is reduced.
GB2150948A 1948-08-14 1948-08-14 Improvements in or relating to methods of making glass bases for electron discharge and other devices Expired GB654724A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2150948A GB654724A (en) 1948-08-14 1948-08-14 Improvements in or relating to methods of making glass bases for electron discharge and other devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2150948A GB654724A (en) 1948-08-14 1948-08-14 Improvements in or relating to methods of making glass bases for electron discharge and other devices

Publications (1)

Publication Number Publication Date
GB654724A true GB654724A (en) 1951-06-27

Family

ID=10164130

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2150948A Expired GB654724A (en) 1948-08-14 1948-08-14 Improvements in or relating to methods of making glass bases for electron discharge and other devices

Country Status (1)

Country Link
GB (1) GB654724A (en)

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