GB191105589A - Improvements in or relating to Vacuum Discharge Tubes for Lighting Purposes. - Google Patents

Improvements in or relating to Vacuum Discharge Tubes for Lighting Purposes.

Info

Publication number
GB191105589A
GB191105589A GB191105589DA GB191105589A GB 191105589 A GB191105589 A GB 191105589A GB 191105589D A GB191105589D A GB 191105589DA GB 191105589 A GB191105589 A GB 191105589A
Authority
GB
United Kingdom
Prior art keywords
relating
discharge tubes
vacuum discharge
lighting purposes
nitrogen
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
Inventor
George Claude
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of GB191105589A publication Critical patent/GB191105589A/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
    • H01J9/395—Filling vessels

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)

Abstract

5589. Claude, G. March 7, 1910, [Convention date]. Argon, helium, krypt o n, and neon are purified, after introduction into a vacuum tube T for electric lighting, by absorption of foreign gases. Carbon may be placed in a bulb R connected with the lamp and immersed in liquid air or nitrogen. The original pressure of the gas may be about that of 2 cm. of mercury, and its final pressure about that of 1 mm. If hydrogen is present, it is first oxidized by heated copper oxide. Oxygen and nitrogen may be removed by lithium.
GB191105589D 1910-03-07 1911-03-06 Improvements in or relating to Vacuum Discharge Tubes for Lighting Purposes. Expired GB191105589A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR191105589X 1910-03-07

Publications (1)

Publication Number Publication Date
GB191105589A true GB191105589A (en) 1911-11-16

Family

ID=32480921

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191105589D Expired GB191105589A (en) 1910-03-07 1911-03-06 Improvements in or relating to Vacuum Discharge Tubes for Lighting Purposes.

Country Status (2)

Country Link
FR (1) FR424190A (en)
GB (1) GB191105589A (en)

Also Published As

Publication number Publication date
FR424190A (en) 1911-05-06

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