GB625186A - Improved method of exhausting and closing vessels such as electric discharge tubes - Google Patents

Improved method of exhausting and closing vessels such as electric discharge tubes

Info

Publication number
GB625186A
GB625186A GB5572/47A GB557247A GB625186A GB 625186 A GB625186 A GB 625186A GB 5572/47 A GB5572/47 A GB 5572/47A GB 557247 A GB557247 A GB 557247A GB 625186 A GB625186 A GB 625186A
Authority
GB
United Kingdom
Prior art keywords
exhausting
electric discharge
discharge tubes
closing
improved method
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
GB5572/47A
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.)
Philips Lamps Ltd
Koninklijke Philips NV
Original Assignee
Philips Lamps Ltd
Philips Gloeilampenfabrieken NV
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 Philips Lamps Ltd, Philips Gloeilampenfabrieken NV filed Critical Philips Lamps Ltd
Publication of GB625186A publication Critical patent/GB625186A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/10—Frequency-modulated carrier systems, i.e. using frequency-shift keying
    • H04L27/16—Frequency regulation arrangements
    • 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
    • H01J9/40—Closing vessels
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
    • H03J7/02—Automatic frequency control
    • H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Manufacturing & Machinery (AREA)
  • Tubes (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Formation Of Various Coating Films On Cathode Ray Tubes And Lamps (AREA)

Abstract

625,186. Making electric discharge tubes. PHILIPS LAMPS, Ltd. Feb. 26, 1947, No. 5572. Convention date, May 25, 1944. [Classes 83 (ii) and 83 (iv)] Soldering.-A method of exhausting and closing electric discharge tubes &c. with a metal bottom 1, comprises exhausting the tube through a hole 2 and applying fusible obturating material such as soft solder 3 covered by a film of material 5 which does not soften at the temperature used for closing the tube. The solder may be tin and the coating nickel. Silver solder electrolytically covered with nickel may be used. Specification 634,173 is referred to.
GB5572/47A 1944-05-25 1947-02-26 Improved method of exhausting and closing vessels such as electric discharge tubes Expired GB625186A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1169950X 1944-05-25

Publications (1)

Publication Number Publication Date
GB625186A true GB625186A (en) 1949-06-23

Family

ID=19870863

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5572/47A Expired GB625186A (en) 1944-05-25 1947-02-26 Improved method of exhausting and closing vessels such as electric discharge tubes

Country Status (6)

Country Link
BE (1) BE464099A (en)
CH (1) CH252910A (en)
DE (1) DE811007C (en)
FR (1) FR927295A (en)
GB (1) GB625186A (en)
NL (1) NL60409C (en)

Also Published As

Publication number Publication date
DE811007C (en) 1951-08-16
CH252910A (en) 1948-01-31
NL60409C (en)
BE464099A (en)
FR927295A (en) 1947-11-03

Similar Documents

Publication Publication Date Title
GB625186A (en) Improved method of exhausting and closing vessels such as electric discharge tubes
GB575309A (en) Improvements in or relating to electro-plating
US2061390A (en) Gaseous conduction device
GB634173A (en) Improvements in or relating to the exhausting and sealing of vessels
GB626357A (en) Improvements in or relating to methods of forming metal coatings on bases of ceramic, refractory or high melting point vitreous material
GB428838A (en) Improvements in electric discharge tubes
GB640705A (en) Improvements in or relating to the sealing of lead-in conductors in hermetically sealed vessels
GB465137A (en) Improvements in and relating to electric discharge lamps
GB656805A (en) Method of producing a glass envelope for enclosing the electrode system of an incandescent lamp, electronic tube or the like
JPS54131369A (en) Fluorescent lamp
GB615827A (en) Improvements in lamp-holders combined with suspension tubes
GB585174A (en) Improvements in or relating to vacuum devices
GB859561A (en) Method for joining parts, at least one of which is of glass, and article made by said method
GB616046A (en) Improvements in or relating to the manufacture of condensers of the wound type
GB594561A (en) Method of making vacuum-tight joints between ceramic elements and other metallic or ceramic elements
GB630707A (en) Improvements in or relating to electric discharge tubes
GB502321A (en) Improvements in electric discharge tubes
GB963469A (en) Improvements in methods of sealing nickel conductors into glass
GB498521A (en) Improvements in or relating to the sealing of evacuated containers
GB601022A (en) Improvements in cathode-ray tubes
GB581329A (en) Improvements in and relating to electric discharge devices
GB836919A (en) A ceramic to metal seal and method of forming same
GB206588A (en) An improved arc lamp
JPS55159541A (en) Manufacture of discharging lamp
CA409932A (en) Quartz bulb electrode sealing method