US513270A - August friedrich wilhelm kreinsen - Google Patents
August friedrich wilhelm kreinsen Download PDFInfo
- Publication number
- US513270A US513270A US513270DA US513270A US 513270 A US513270 A US 513270A US 513270D A US513270D A US 513270DA US 513270 A US513270 A US 513270A
- Authority
- US
- United States
- Prior art keywords
- kreinsen
- crucible
- august
- friedrich wilhelm
- platinum
- 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
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- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 28
- 229910052751 metal Inorganic materials 0.000 description 20
- 239000002184 metal Substances 0.000 description 20
- 239000000463 material Substances 0.000 description 16
- 229910052697 platinum Inorganic materials 0.000 description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 12
- 229910052799 carbon Inorganic materials 0.000 description 12
- 230000005611 electricity Effects 0.000 description 12
- 150000002739 metals Chemical class 0.000 description 12
- 238000002844 melting Methods 0.000 description 10
- 230000004927 fusion Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- 238000006011 modification reaction Methods 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 241000229754 Iva xanthiifolia Species 0.000 description 2
- 240000003936 Plumbago auriculata Species 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000000615 nonconductor Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
Images
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
- H05B7/00—Heating by electric discharge
- H05B7/18—Heating by arc discharge
Definitions
- This invention relates to the melting of metals and other materials by the aid of electricity.
- the fusion of the metal is efiected in electrically heated crucibles or receptacles, but it may be primarily fused, by being brought into contact with a carbon electrode through which and the material a sufficient electric current is caused to pass.
- Figure 1 is a vertical transverse sectional view of one construction of my improved apparatus for melting by electricity.
- Fig. 2 is a plan view of a modified construction.
- Fig. 3 is a vertical transverse sectional view of a further modification.
- Fig. 4 is a plan-view of the same.
- Fig. 1,75 is a positive electrode which may best consist of an electric light carbon
- m is the negative electrode which consists of the material to be melted.
- Both of the electrodes are movable and adjustable so that they may be moved toward or withdrawn from each other as may be required either by hand or by mechanical means. The fusion of the material is thus effected, on the passage of a current, without the use of a second carbon electrode.
- the electrodes m are arranged above the center of the crucible g and above them there is arranged the cap or shield f, to prevent the escape of any sparks and splashes from the fusing material. As the material is melted, it drops into the hollow t, of the crucible where it is remelted or kept in fusion by the means to be hereinafter described. ductors.
- a and o are the conthe positive electrode, instead of being a carbon rod, is a rotary carbon disk 70 against which the negative electrode m of the material to be melted is pushed.
- the current may be conveyed to the disk by means of the strong spring w, pressing upon the spindle of the disk.
- Fig. 1 The means which I employ for heating the crucible or receiver are illustrated by Fig. 1.
- One or more spirals of platinum wire or platinum ribbon 19, may be embedded in the walls of the crucible or surround it closely. This circuit is arranged in a shunt from the main circuit and the heat produced by the resistance of the platinum will be transmitted through the crucible to its contents.
- an ordinary plumbago crucible g or 71 of high electrical resistance is inserted in a thin platinum vessel 13 or p of similar form as shown.
- the platinum vessel receives a current through the terminals 72 0, between which the continuity of the metal is destroyed, so that the current is compelled to traverse the whole of the metal of the vessel 19 or 19 thereby raising it to a temperature of from 1,600 to 2,000 centigrade if de sired.
- This high temperature is transmitted through the crucible to the material contained therein and effects its fusion or maintains itin melted condition as required.
- the platinum vessel may be surrounded by a nonconductor of heat, and to prevent the waste of platinum, the apparatus may be worked in a vacuum, and if the metals also be poured from the crucible or cast in the vacuum, the occurence of blisters and air bubbles will be avoided.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Resistance Heating (AREA)
Description
. W. KREINSEN (No Model.) P
PROCESS OF AND APPARATUS FOR MBLTING'METALS BY MEANS OF ELECTRICITY. No. 513,270. Patented Jan. 23, 1894.
[IVE/V70)? A W/ m! NA'IIONAL umosumma counuv.
UNITED STATES PATENT OFFICE.
AUGUST FRIEDRICH \VILHELM KREINSEN, OF HAMBURG, GERMANY.
PROCESS OF AND APPARATUS FOR MELTING METALS BY MEANS OF ELECTRICITY.
SPECIFICATION forming part of Letters Patent No. 513,270, dated January 23, 1894.
Application filed September 28,1892- Serial No. 447,134. (No model.)
To aZZ whom it may concern.-
Be it known that 1, AUGUST FRIEDRICH WILHELM KREINSEN, of Hamburg, in the Kingdom of Prussia and German Empire, have invented a newand useful Process of and Apparatus for Melting Metals and other Substances by Means of Electricity, of which the following is a specification, reference being had therein to the accompanying drawings,
This invention relates to the melting of metals and other materials by the aid of electricity.
According to these improvements, the fusion of the metal is efiected in electrically heated crucibles or receptacles, but it may be primarily fused, by being brought into contact with a carbon electrode through which and the material a sufficient electric current is caused to pass.
I will describe my invention with reference to the accompanying drawings, which illustrate various modifications of my improvements, and in which- Figure 1 is a vertical transverse sectional view of one construction of my improved apparatus for melting by electricity. Fig. 2 is a plan view of a modified construction. Fig. 3 is a vertical transverse sectional view of a further modification. Fig. 4 is a plan-view of the same.
Similar letters of reference indicate corresponding parts.
In Fig. 1,75 is a positive electrode which may best consist of an electric light carbon, and m is the negative electrode which consists of the material to be melted. Both of the electrodes are movable and adjustable so that they may be moved toward or withdrawn from each other as may be required either by hand or by mechanical means. The fusion of the material is thus effected, on the passage of a current, without the use of a second carbon electrode. The electrodes m, are arranged above the center of the crucible g and above them there is arranged the cap or shield f, to prevent the escape of any sparks and splashes from the fusing material. As the material is melted, it drops into the hollow t, of the crucible where it is remelted or kept in fusion by the means to be hereinafter described. ductors.
In the modification. represented by Fig. 2,
a and o are the conthe positive electrode, instead of being a carbon rod, is a rotary carbon disk 70 against which the negative electrode m of the material to be melted is pushed. The current may be conveyed to the disk by means of the strong spring w, pressing upon the spindle of the disk.
The means which I employ for heating the crucible or receiver are illustrated by Fig. 1. One or more spirals of platinum wire or platinum ribbon 19, may be embedded in the walls of the crucible or surround it closely. This circuit is arranged in a shunt from the main circuit and the heat produced by the resistance of the platinum will be transmitted through the crucible to its contents.
In Fig. 2, an ordinary plumbago crucible g or 71 of high electrical resistance, is inserted in a thin platinum vessel 13 or p of similar form as shown. The platinum vessel receives a current through the terminals 72 0, between which the continuity of the metal is destroyed, so that the current is compelled to traverse the whole of the metal of the vessel 19 or 19 thereby raising it to a temperature of from 1,600 to 2,000 centigrade if de sired. This high temperature is transmitted through the crucible to the material contained therein and effects its fusion or maintains itin melted condition as required. The platinum vessel may be surrounded by a nonconductor of heat, and to prevent the waste of platinum, the apparatus may be worked in a vacuum, and if the metals also be poured from the crucible or cast in the vacuum, the occurence of blisters and air bubbles will be avoided.
Having thus described my invention, I claim as new and desire to secure by Letters Patent- In an apparatus for melting metals and other substances by electricity, the combination, with an electrode composed of the metal or substance to be melted, and a carbon electrode, of a crucible and a cap on the crucible, the electrodes being located within said cap, substantially as set forth.
In witness whereof I have hereunto set my hand in presence of two witnesses.
AUGUST FRIEDRICH WILllELllI KREIN SEN.
Witnesses:
AUG. WEDEKING, CARL Orro.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US513270A true US513270A (en) | 1894-01-23 |
Family
ID=2582087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US513270D Expired - Lifetime US513270A (en) | August friedrich wilhelm kreinsen |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US513270A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3021562A (en) * | 1957-04-01 | 1962-02-20 | Dow Chemical Co | Production of group iv, subgroup a, metal prills |
| US3099041A (en) * | 1961-03-08 | 1963-07-30 | Nuclear Metals Inc | Method and apparatus for making powder |
| US20040026380A1 (en) * | 2000-11-10 | 2004-02-12 | Wolfgang Holzgruber | Method for producing metal blocks or bars by melting off electrodes and devices |
| EP3404108A1 (en) | 2009-06-05 | 2018-11-21 | Basf Se | Biocatalytic preparation of ambroxane |
| EP3816297A1 (en) | 2016-02-19 | 2021-05-05 | Basf Se | Biocatalytic cyclising polyunsaturated carboxylic acid compounds |
-
0
- US US513270D patent/US513270A/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3021562A (en) * | 1957-04-01 | 1962-02-20 | Dow Chemical Co | Production of group iv, subgroup a, metal prills |
| US3099041A (en) * | 1961-03-08 | 1963-07-30 | Nuclear Metals Inc | Method and apparatus for making powder |
| US20040026380A1 (en) * | 2000-11-10 | 2004-02-12 | Wolfgang Holzgruber | Method for producing metal blocks or bars by melting off electrodes and devices |
| US6853672B2 (en) * | 2000-11-10 | 2005-02-08 | Inteco Internationale Technische Beratung Ges.Mbh | Method for producing metal blocks or bars by melting off electrodes and device for carrying out this method |
| EP3404108A1 (en) | 2009-06-05 | 2018-11-21 | Basf Se | Biocatalytic preparation of ambroxane |
| EP3816297A1 (en) | 2016-02-19 | 2021-05-05 | Basf Se | Biocatalytic cyclising polyunsaturated carboxylic acid compounds |
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