US863674A - Joint for carbon electrodes. - Google Patents
Joint for carbon electrodes. Download PDFInfo
- Publication number
- US863674A US863674A US33611906A US1906336119A US863674A US 863674 A US863674 A US 863674A US 33611906 A US33611906 A US 33611906A US 1906336119 A US1906336119 A US 1906336119A US 863674 A US863674 A US 863674A
- Authority
- US
- United States
- Prior art keywords
- joint
- carbon electrodes
- electrodes
- tapered
- contact surface
- 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
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25G—HANDLES FOR HAND IMPLEMENTS
- B25G3/00—Attaching handles to the implements
- B25G3/02—Socket, tang, or like fixings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B7/00—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections
- F16B7/02—Connections of rods or tubes, e.g. of non-circular section, mutually, including resilient connections with conical parts
Definitions
- This invention relates to carbon electrodes such as are used in electric fiirnaces,and hasfor its object to provide a'joint whereby two electrodes can be joined together end to end with high conductivity and good mechanical strength.
- graphitized carbons came into use it' was difficult to'join two carbons on account of the difficulty of machining them and of making a close fitting joint.
- graphitized car- .bons it has become customary, when it is desired to assemble two or more pieces, to thread one piece into another. In'this'way a new electrode can be joined to the end of one in use, and thus electrodes can be fed into the furnace one after another without interrupthrown away.
- 2, 3 are the carbon electrode pieces to be joined. These pieces are formed at the ends with a tapered threaded portion and a threaded tapered socket re 1.
- a joint for carbon electrodes consisting of two carbon electrode pieces having respectively'a tapered threaded end and a-t'apered threaded socket, the tapered treaded spectively, a'ndare united by securing them together.
- V portions constituting substantially the entire contact surface of the joint.
- a joint for carbon electrodes consisting of two carban electrode pieceshaving respectively a tapered threaded end and atapered threaded socket, said parts being screwed together and the tapered threadedportions constituting substantially theentiie Contact surface of the joint.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Discharge Heating (AREA)
Description
No. 863,674 PATENTED AUG. 20, 1907'.
' F31". TQONE.
JOINT FOR CARBON ELECTRODES. APPLICATION FILED SEPT. 25. I906.
WITNESSES INVENTOR UNITEI D LS TATE S P ENT OFFICE.
FRANK J. TONE, OF NIAGARA FALLS, NEW YORK.
:Tom'r: son CARBON ELECTRODES:
Application as $eptember 25,1906. Serial No. 336,119.
Specification of Letters Patent.
Patented Aug-. 20, 1907.
-of this specification, which shows a carbon electrode jointed according to my invention.
This invention relates to carbon electrodes such as are used in electric fiirnaces,and hasfor its object to provide a'joint whereby two electrodes can be joined together end to end with high conductivity and good mechanical strength. Before graphitized carbons came into use it' was difficult to'join two carbons on account of the difficulty of machining them and of making a close fitting joint. In the use of graphitized car- .bons it has become customary, when it is desired to assemble two or more pieces, to thread one piece into another. In'this'way a new electrode can be joined to the end of one in use, and thus electrodes can be fed into the furnace one after another without interrupthrown away.
Several modes of making threaded joints for electrodes are in use, but so far as I am aware they have been defective in that the joints produced are weak mechanically or are of impaired electrical conductivityor of inconvenient form, and all of them have the great objection that the contact surface is not equally distributed, and in case of heating at the surface of contact, such as may be expected to a greater or less degree in all joints, such heating will be unequal and will tend to break the red. I have discovered that by connecting the parts of the electrode with a tapered threaded joint, such as shown in the accompanying drawing, the defects herein before described are entirely overcome for I not only obtain mechanically the strongest possible joint without increasing the cross-section of the electrode at the joint, but I also secure the maximum amount of contact surface and the most uniform distribution of contact surface normal to the line of'current flow; that is to say, every unit of section has an equal amount of contact surface, and the joint being equal in resistance in all its parts reduces. the effects of overheating.
In the drawing which shows the joint in its preferred form, 2, 3 are the carbon electrode pieces to be joined. These pieces are formed at the ends with a tapered threaded portion and a threaded tapered socket re 1. A joint for carbon electrodes consisting of two carbon electrode pieces having respectively'a tapered threaded end and a-t'apered threaded socket, the tapered treaded spectively, a'ndare united by securing them together.
V portions constituting substantially the entire contact surface of the joint.
2 A joint for carbon electrodes consisting of two carban electrode pieceshaving respectively a tapered threaded end and atapered threaded socket, said parts being screwed together and the tapered threadedportions constituting substantially theentiie Contact surface of the joint.
In testimony whereof, I have hereunto set my hand.
. FRANK J. TONE.
Witnesses:
ASHMEAD G. Rononns, ARTHUR BATTS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US33611906A US863674A (en) | 1906-09-25 | 1906-09-25 | Joint for carbon electrodes. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US33611906A US863674A (en) | 1906-09-25 | 1906-09-25 | Joint for carbon electrodes. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US863674A true US863674A (en) | 1907-08-20 |
Family
ID=2932125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US33611906A Expired - Lifetime US863674A (en) | 1906-09-25 | 1906-09-25 | Joint for carbon electrodes. |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US863674A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2598006A (en) * | 1949-10-22 | 1952-05-27 | Leo D Reimann | Holder for carbons used in projecting machines |
| US2650943A (en) * | 1950-01-03 | 1953-09-01 | Conradty Fa C | Electrode of carbon |
| US3373308A (en) * | 1963-10-31 | 1968-03-12 | Lorraine Carbone | Negative electrodes for carbon arc lamps |
| US20050271114A1 (en) * | 2004-06-03 | 2005-12-08 | Mark Segger | Electrode joint locking system |
| US20060291525A1 (en) * | 2005-04-28 | 2006-12-28 | Sgl Carbon Aktiengesellschaft | Electrode joint |
| US20070047613A1 (en) * | 2004-01-20 | 2007-03-01 | Brian Bowman | Locking ring for graphite electrodes having friction layer |
| US20070127541A1 (en) * | 2004-01-20 | 2007-06-07 | Brian Bowman | Locking ring for graphite electrodes |
-
1906
- 1906-09-25 US US33611906A patent/US863674A/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2598006A (en) * | 1949-10-22 | 1952-05-27 | Leo D Reimann | Holder for carbons used in projecting machines |
| US2650943A (en) * | 1950-01-03 | 1953-09-01 | Conradty Fa C | Electrode of carbon |
| US3373308A (en) * | 1963-10-31 | 1968-03-12 | Lorraine Carbone | Negative electrodes for carbon arc lamps |
| US20070047613A1 (en) * | 2004-01-20 | 2007-03-01 | Brian Bowman | Locking ring for graphite electrodes having friction layer |
| US20070127541A1 (en) * | 2004-01-20 | 2007-06-07 | Brian Bowman | Locking ring for graphite electrodes |
| US7466739B2 (en) * | 2004-01-20 | 2008-12-16 | Graftech International Holdings Inc. | Locking ring for graphite electrodes |
| US20050271114A1 (en) * | 2004-06-03 | 2005-12-08 | Mark Segger | Electrode joint locking system |
| US7230969B2 (en) | 2004-06-03 | 2007-06-12 | Ucar Carbon Company Inc. | Electrode joint locking system |
| US20060291525A1 (en) * | 2005-04-28 | 2006-12-28 | Sgl Carbon Aktiengesellschaft | Electrode joint |
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