GB796762A - Improvements in or relating to a method of releasing a vacuum in a vessel and to evacuating apparatus - Google Patents

Improvements in or relating to a method of releasing a vacuum in a vessel and to evacuating apparatus

Info

Publication number
GB796762A
GB796762A GB270154A GB270154A GB796762A GB 796762 A GB796762 A GB 796762A GB 270154 A GB270154 A GB 270154A GB 270154 A GB270154 A GB 270154A GB 796762 A GB796762 A GB 796762A
Authority
GB
United Kingdom
Prior art keywords
vacuum
vessel
releasing
relating
jan
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
GB270154A
Inventor
Peter Seats
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 GB270154A priority Critical patent/GB796762A/en
Publication of GB796762A publication Critical patent/GB796762A/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
    • H01J9/38—Exhausting, degassing, filling, or cleaning vessels

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)

Abstract

796,762. Cathode-ray tubes. ELECTRIC & MUSICAL INDUSTRIES, Ltd. Jan. 17, 1955 [Jan. 29, 1954], No. 2701/54. Class 39(1). Gas is admitted in the release of the vacuum in an evacuated vessel in a direction away from a surface carrying a deposited layer which may be damaged by the rush of gas. The end face 5 of C.R.T. 4 has a fluorescent screen on which is formed a layer of metal by vacuum deposition from a filament 9. The duct 6 can be raised or lowered through the neck 3 of the tube and air admitted through apertures 8 at the top end of the duct which direct the air radially.
GB270154A 1954-01-29 1954-01-29 Improvements in or relating to a method of releasing a vacuum in a vessel and to evacuating apparatus Expired GB796762A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB270154A GB796762A (en) 1954-01-29 1954-01-29 Improvements in or relating to a method of releasing a vacuum in a vessel and to evacuating apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB270154A GB796762A (en) 1954-01-29 1954-01-29 Improvements in or relating to a method of releasing a vacuum in a vessel and to evacuating apparatus

Publications (1)

Publication Number Publication Date
GB796762A true GB796762A (en) 1958-06-18

Family

ID=9744274

Family Applications (1)

Application Number Title Priority Date Filing Date
GB270154A Expired GB796762A (en) 1954-01-29 1954-01-29 Improvements in or relating to a method of releasing a vacuum in a vessel and to evacuating apparatus

Country Status (1)

Country Link
GB (1) GB796762A (en)

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