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US1722146A - Electrode - Google Patents

Electrode Download PDF

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Publication number
US1722146A
US1722146A US159741A US15974127A US1722146A US 1722146 A US1722146 A US 1722146A US 159741 A US159741 A US 159741A US 15974127 A US15974127 A US 15974127A US 1722146 A US1722146 A US 1722146A
Authority
US
United States
Prior art keywords
electrode
ilmenite
magnetite
electrodes
chromite
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 - Lifetime
Application number
US159741A
Inventor
Irby William
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Priority to US159741A priority Critical patent/US1722146A/en
Application granted granted Critical
Publication of US1722146A publication Critical patent/US1722146A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H05B31/02—Details
    • H05B31/06—Electrodes
    • H05B31/065—Electrodes for flame arc lamps

Definitions

  • My invention relates to electrodes for are lamps, and more particularly to electrodes especially adapted for use in connection with the so-called luminous arc.
  • Flaming arc electrodes are commonly made of a mixture of ilmenite, magnetite and chromite, together with a flux of sodium fluoride. I have found that the operation of such electrodes can be very materially improved by substituting the following mixture:
  • An electrode for an electric arc consisting of the following ingredients, in substantially the following proportions 'ilmenite 69.0%, chromite 3.0%, magnetite 14.92%,

Landscapes

  • Crystals, And After-Treatments Of Crystals (AREA)

Description

Patented July 23, 1929.
WILLIAM IRBY, or
LYNN, MASSACHUSETTS, ASSIGNOR 'ro GENERAL ELECTRIC com- PM, A conrormrrou on NEW YORK. 1 r
ELECTRODE No Drawing.
My invention relates to electrodes for are lamps, and more particularly to electrodes especially adapted for use in connection with the so-called luminous arc.
5 One of the objects of my invention is to.
provide an electrode of the ilmenite magnetite class, the operation of which is materially improved.
Flaming arc electrodes are commonly made of a mixture of ilmenite, magnetite and chromite, together with a flux of sodium fluoride. I have found that the operation of such electrodes can be very materially improved by substituting the following mixture:
Percent.
Ilmenite (39. O
Magnetite 14. 92 Chromite 3.0 Ferro-titanium 12. 8
Sodium fluoride 0.28
Applicationfiled January 7, 1927. Serial No. 159, 741.
cure by Letters Patent of the UnitedStates,
An electrode for an electric arc consisting of the following ingredients, in substantially the following proportions 'ilmenite 69.0%, chromite 3.0%, magnetite 14.92%,
sodium fluoride 0.28% and ferro-titanium 12.8%.- I
In witness whereof, I have hereunto set WIL IAM IRBY.
'my hand this 5th day of January, 1927.
US159741A 1927-01-07 1927-01-07 Electrode Expired - Lifetime US1722146A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US159741A US1722146A (en) 1927-01-07 1927-01-07 Electrode

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US159741A US1722146A (en) 1927-01-07 1927-01-07 Electrode

Publications (1)

Publication Number Publication Date
US1722146A true US1722146A (en) 1929-07-23

Family

ID=22573818

Family Applications (1)

Application Number Title Priority Date Filing Date
US159741A Expired - Lifetime US1722146A (en) 1927-01-07 1927-01-07 Electrode

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US (1) US1722146A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE765213C (en) * 1937-12-22 1952-01-31 Lorraine Carbone Cathode for strong arcs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE765213C (en) * 1937-12-22 1952-01-31 Lorraine Carbone Cathode for strong arcs

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