GB103351A - Improvements in Incandescent Gas-filled Electric Lamps. - Google Patents

Improvements in Incandescent Gas-filled Electric Lamps.

Info

Publication number
GB103351A
GB103351A GB138416A GB138416A GB103351A GB 103351 A GB103351 A GB 103351A GB 138416 A GB138416 A GB 138416A GB 138416 A GB138416 A GB 138416A GB 103351 A GB103351 A GB 103351A
Authority
GB
United Kingdom
Prior art keywords
cap
gas
stem
filament
cemented
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
GB138416A
Inventor
Andrew John West
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
Priority to GB138416A priority Critical patent/GB103351A/en
Publication of GB103351A publication Critical patent/GB103351A/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
    • H01J9/40—Closing vessels

Landscapes

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

Abstract

103,351. West, A. J. Jan. 28, 1916. Making lamps; repairing; residual gases; caps; filaments; supports for.-A cap removable with the filament is provided with a tube, open at its inner end, for the introduction of a gas such as nitrogen, escape of air being provided for. In the construction shown, the cap 6 is provided, below the screw-thread for insertion in a holder, with a shoulder and an enlarged threaded portion screwed on to a sleeve 4, which is cemented on the cylindrical bulb neck. A hole 12 in the shoulder of the cap, serving for the escape of air, is closed by an internal flange on the sleeve 4, when the cap is screwed home A stem 19, having at its upper end a head 20 cemented into the cap, serves also as the tube for admission of gas, which flows out into the bulb through a lateral hole 26. The gas is led into the cap through an insulated nipple 9 in its end. A fiared screw plug normally closes the nipple, with which one end of the filament is connected. At its inner end, the stem is solid and is enlarged to hold radial supports 22 for a filament forming a nearly complete circle in a plane at right-angles to the stem. Specification 4847/78 is referred to.
GB138416A 1916-01-28 1916-01-28 Improvements in Incandescent Gas-filled Electric Lamps. Expired GB103351A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB138416A GB103351A (en) 1916-01-28 1916-01-28 Improvements in Incandescent Gas-filled Electric Lamps.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB138416A GB103351A (en) 1916-01-28 1916-01-28 Improvements in Incandescent Gas-filled Electric Lamps.

Publications (1)

Publication Number Publication Date
GB103351A true GB103351A (en) 1917-01-25

Family

ID=32243193

Family Applications (1)

Application Number Title Priority Date Filing Date
GB138416A Expired GB103351A (en) 1916-01-28 1916-01-28 Improvements in Incandescent Gas-filled Electric Lamps.

Country Status (1)

Country Link
GB (1) GB103351A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6688376B2 (en) * 2001-10-23 2004-02-10 Robert Peter Koenig Two port coil capacity modulator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6688376B2 (en) * 2001-10-23 2004-02-10 Robert Peter Koenig Two port coil capacity modulator

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