GB125944A - Improvements in Quartz Mercury Vapour Lamps. - Google Patents

Improvements in Quartz Mercury Vapour Lamps.

Info

Publication number
GB125944A
GB125944A GB7830/19A GB783019A GB125944A GB 125944 A GB125944 A GB 125944A GB 7830/19 A GB7830/19 A GB 7830/19A GB 783019 A GB783019 A GB 783019A GB 125944 A GB125944 A GB 125944A
Authority
GB
United Kingdom
Prior art keywords
mercury
pressure
tungsten
lamp
vapour
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
GB7830/19A
Inventor
Henri George
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 claimed from US289330A external-priority patent/US1361710A/en
Publication of GB125944A publication Critical patent/GB125944A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
    • H01J61/72—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a main light-emitting filling of easily vaporisable metal vapour, e.g. mercury

Landscapes

  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Abstract

125,944. George, H. April 24, 1918, [Convention date]. Low-pressure metallic-vapour apparatus. - A quartz mercury vapour lamp containing inert gas at a pressure of a few centimetres of mercury is connected to an alternating current source of volt. age sufficient to start the lamp; the current increases until the pressure of the mercury vapour equals or exceeds 1 kilogram per square cm., the inert gas being expelled into a cooler part of the tube such as the reservoirs 5, Fig. 3. A voltage of 500 is suitable for use with neon, and a higher voltage with nitrogen. The temperature may rise to about 700‹ C. The electrodes may consist of tungsten blades 7, connected to tungsten wires 4, and situated above mercury reservoirs 8: or the electrodes may be of mercury. A vertical lamp has an upper electrode of tungsten and a lower electrode of mercury. An inductance may be connected in series.
GB7830/19A 1918-04-24 1919-03-28 Improvements in Quartz Mercury Vapour Lamps. Expired GB125944A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR125944X 1918-04-24
US289330A US1361710A (en) 1919-04-11 1919-04-11 Quartz mercury-vapor lamp

Publications (1)

Publication Number Publication Date
GB125944A true GB125944A (en) 1920-02-26

Family

ID=32773897

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7830/19A Expired GB125944A (en) 1918-04-24 1919-03-28 Improvements in Quartz Mercury Vapour Lamps.

Country Status (2)

Country Link
FR (1) FR493026A (en)
GB (1) GB125944A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE743171C (en) * 1931-05-14 1943-12-20 Patra Patent Treuhand Process for operating electric light tubes with glow electrodes which, in addition to a noble gas base filling, contain a metal vapor of sufficient pressure to generate light
DE754219C (en) * 1938-04-24 1954-03-15 Quarzlampen G M B H High-pressure metal vapor lamp, in particular high-pressure mercury lamp, with fixed, non-activated heating electrodes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE743171C (en) * 1931-05-14 1943-12-20 Patra Patent Treuhand Process for operating electric light tubes with glow electrodes which, in addition to a noble gas base filling, contain a metal vapor of sufficient pressure to generate light
DE754219C (en) * 1938-04-24 1954-03-15 Quarzlampen G M B H High-pressure metal vapor lamp, in particular high-pressure mercury lamp, with fixed, non-activated heating electrodes

Also Published As

Publication number Publication date
FR493026A (en) 1919-07-29

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