FR446271A - Improvements to electric arc lamps - Google Patents

Improvements to electric arc lamps

Info

Publication number
FR446271A
FR446271A FR446271DA FR446271A FR 446271 A FR446271 A FR 446271A FR 446271D A FR446271D A FR 446271DA FR 446271 A FR446271 A FR 446271A
Authority
FR
France
Prior art keywords
electric arc
arc lamps
lamps
electric
arc
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
Other languages
French (fr)
Inventor
Albert Thomas Dowdell
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.)
Engineering & Arc Lamps Ltd
Original Assignee
Engineering & Arc Lamps Ltd
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 Engineering & Arc Lamps Ltd filed Critical Engineering & Arc Lamps Ltd
Application granted granted Critical
Publication of FR446271A publication Critical patent/FR446271A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B31/00—Electric arc lamps
    • H05B31/0003—Electric arc lamps the arc being outside, in the open
    • H05B31/0012—Electric arc lamps the arc being outside, in the open with a plurality of electrode pairs
FR446271D 1911-07-20 1912-07-19 Improvements to electric arc lamps Expired FR446271A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB446271X 1911-07-20

Publications (1)

Publication Number Publication Date
FR446271A true FR446271A (en) 1912-11-30

Family

ID=1487069

Family Applications (1)

Application Number Title Priority Date Filing Date
FR446271D Expired FR446271A (en) 1911-07-20 1912-07-19 Improvements to electric arc lamps

Country Status (1)

Country Link
FR (1) FR446271A (en)

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