GB463507A - Improvements in and relating to methods of recovering gas from the pipes or ducts of apparatus for filling electric incandescent lamps or discharge tubes - Google Patents

Improvements in and relating to methods of recovering gas from the pipes or ducts of apparatus for filling electric incandescent lamps or discharge tubes

Info

Publication number
GB463507A
GB463507A GB5143/36A GB514336A GB463507A GB 463507 A GB463507 A GB 463507A GB 5143/36 A GB5143/36 A GB 5143/36A GB 514336 A GB514336 A GB 514336A GB 463507 A GB463507 A GB 463507A
Authority
GB
United Kingdom
Prior art keywords
gas
filling
pipe
incandescent lamps
pipes
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
GB5143/36A
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.)
Egyesuelt Izzolampa es Villamossagi Rt
Original Assignee
Egyesuelt Izzolampa es Villamossagi Rt
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 Egyesuelt Izzolampa es Villamossagi Rt filed Critical Egyesuelt Izzolampa es Villamossagi Rt
Publication of GB463507A publication Critical patent/GB463507A/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)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

463,507. Electric incandescent lamps with residual gases. EGYESULT IZZOLAMPA ES VILLAMOSSAGI RESZVENYTARSASAG. Feb. 20, 1936, No. 5143. Convention date, Feb. 21, 1935. [Class 39 (ii)] In a method of recovering gas from the pipes or ducts of apparatus for filling the. bulbs of electric incandescent lamps or discharge tubes with a gas mixture, particularly one containing krypton, the gas mixture which remains behind in the pumping and filling machine after sealing off the filling tube of a gas-filled bulb is pumped off and, it may be, after purification, is used again, unchanged in composition, in the apparatus, for the filling of other incandescent lamps or discharge tubes. An automatic pumping and filling machine of known type may be modified by providing an additional exhausting pipe. The Figure shows diagrammatically the principle of the invention applied to a known type of non-automatic apparatus wherein lamp bulbs 2, 3 are connected by tubes 2<a>, 3<a> to a pipe 1 which, through a pipe 4 is connected to a pipe 5 with branches 20, 21, 24, 22 respectively connected by cocks 6 ... 9 to an exhausting-pump 11, a reservoir 12 for a scavenging-gas such as nitrogen, an air inlet, and a reservoir 13 for the filling gas. In accordance with the invention an additional pipe 23 is connected from the pipe 5 to a cock controlling a pump 14 which pumps off the gas left behind in the other pipes after the closing of cocks 6 ... 9 and the sealing off of the bulbs 2, 3. The gas is forced into a purifier 15 from which it may be delivered with the aid of a pump 16, directly or indirectly into the reservoir 13 for the filling-gas. Specification 420,877 is referred to.
GB5143/36A 1935-02-21 1936-02-20 Improvements in and relating to methods of recovering gas from the pipes or ducts of apparatus for filling electric incandescent lamps or discharge tubes Expired GB463507A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
HU463507X 1935-02-21

Publications (1)

Publication Number Publication Date
GB463507A true GB463507A (en) 1937-04-01

Family

ID=10979257

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5143/36A Expired GB463507A (en) 1935-02-21 1936-02-20 Improvements in and relating to methods of recovering gas from the pipes or ducts of apparatus for filling electric incandescent lamps or discharge tubes

Country Status (2)

Country Link
FR (1) FR798571A (en)
GB (1) GB463507A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3021878A (en) * 1956-09-17 1962-02-20 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Exhaust machine for lamp and radio bulbs and the like

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3021878A (en) * 1956-09-17 1962-02-20 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Exhaust machine for lamp and radio bulbs and the like

Also Published As

Publication number Publication date
FR798571A (en) 1936-05-20

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