US3048433A - Screw nipple connection for electrodes - Google Patents

Screw nipple connection for electrodes Download PDF

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Publication number
US3048433A
US3048433A US828301D US82830159D US3048433A US 3048433 A US3048433 A US 3048433A US 828301 D US828301 D US 828301D US 82830159 D US82830159 D US 82830159D US 3048433 A US3048433 A US 3048433A
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United States
Prior art keywords
nipple
electrodes
electrode
threaded
box
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Expired - Lifetime
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US828301D
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English (en)
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Doetsch Ernst
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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
    • H05B7/00—Heating by electric discharge
    • H05B7/02—Details
    • H05B7/14—Arrangements or methods for connecting successive electrode sections
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/064—Dephosphorising; Desulfurising
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S285/00—Pipe joints or couplings
    • Y10S285/915—Mastic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S403/00—Joints and connections
    • Y10S403/05—Carbon electrode
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
    • Y10S411/924—Coupled nut and bolt
    • Y10S411/947—Elastic-gripping action
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/47—Molded joint
    • Y10T403/472—Molded joint including mechanical interlock
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/47—Molded joint
    • Y10T403/477—Fusion bond, e.g., weld, etc.
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/55—Member ends joined by inserted section
    • Y10T403/556—Section threaded to member

Definitions

  • the present invention relates to a screw nipple connection and, more particularly, concerns an arrangement for securing a screw nipple connection with carbon and graphite electrodes for electric furnaces to prevent accidental loosening of such connection.
  • a proper and safe screw nipple connection of carbon and graphite electrodes has prior to the present invention still remained an unsolved problem in spite of numerous efforts in this direction. This is particularly true with large electrodes.
  • the following methods have heretofore been employed: prior to screwing-in the nipple, the latter is coated with one of the known cements or binders on a tar, pitch, resin, or waterglass basis. When the binder or cement is heated, it cokes and the thus formed coke is supposed non-detachably Ito interconnect the nipple and the nipple box and, furthermore, to reduce the transfer resistance. With small electrode dimensions, this method is successful when the furnace conditions are favorable.
  • the nipple or box of the electrode is entirely or partially impregnated with tar or pitch.
  • these inserted means sweat out and are supposed to seal the thread surfaces.
  • This method has proved successful in many instances but, under certain furnace conditions, it has the drawback, particularly when the electrode is too quickly adjusted, that the impregnating means acts as liquid lubricant and thus directly favors the loosening of the connection if it does not coke at the proper time.
  • the nipple is additionally weakened by large Ibores. This disadvantage is also encountered with meltable carbon containing substances in cavities of the ends of the electrodes or the nipple.
  • the screw nipple connection is secured by means of graphite pins which are ⁇ driven laterally through the box into the nipple into pre-drilled bores thereof.
  • graphite pins which are ⁇ driven laterally through the box into the nipple into pre-drilled bores thereof.
  • FIG. l represents -a longitudinal section through a screw nipple connection according to the present invention.
  • FIG. 2 is a longitudinal section similar to that of FIG. 1 through a modified screw nipple connection of the in- 'vention FiG. 3 illustrates an end face of the screw nipple of the invention with depressions provided therein in conformity with the invention.
  • FIG. 4 is a longitudinal section through still another modied screw nipple connection of the invention.
  • FIG. 5 is a section along the line V--V of FIG. 4.
  • the screw nipple connection with carbon and graphite electrodes for electric furnaces is secured against loosening by providing the end faces of the threaded nipple and also the bottom of the threaded boxes with a plurality of cylindrical semispherical or similarly shaped depressions of a diameter and depth of from l to 2 centimeters, said depressions being distributed over the entire end surfaces. Furthermore, in conformity with the present invention, a thin bore having a diameter of from 2 to 3 millimeters is provided in the wall of the threaded boxes at the level of the bottom of the threaded box.
  • the electrode end faces ⁇ are provided with a non-rectilinear groove.
  • the screw nipple may in a manner known per se be provided with a longitudinal bore whereby the cement material may be introduced merely through the bore of the superimposed electrode because the cement material will, through said longitudinal bore, pass into the lower free chamber and fill the same. In this instance, the air can escape through the bore in the lower electrode.
  • the nipple may furthermore be locked against rotation by repeatedly interrupting the thread of the nipple and of the box by grooves which may extend in longitudinal direction or at an angle thereto.
  • the grooves have to be designed so that when screwing together the nipple and the electrodes, the grooves in the nipple thread will be located opposite the grooves in the thread of the box or will intersect the same.
  • the cement material may have added thereto metals or metal carbides.
  • the screw nipple connection shown in FIG. l comprises an electrode a and an electrode b which are interconnected by a conioal screw nipple c.
  • the end faces of the screw nipple c and the bottom of the threaded box are provided with a plurali-ty of cylindrical depressions d.
  • both electrodes At the level of the bottom of the threaded box, both electrodes have a thin bore e through which from the outside a self-hardening cement material is pressed under high pressure into the free space or gap between the screw nipple c and the threaded box.
  • the screw nipple connection shown therein likewise comprises the two electrodes a and b which are interconnected by a screw nipple c.
  • the depressions d in the end faces of the nipple and in the bottom of the threaded box are designed semi-spherically.
  • thin bores e are provided in the electrodes a and b at the level of the bottom of the threaded box.
  • the arrangement of FIG. 2 differs from FIG. l furthermore in that the screw nipple lis provided with a thin longitudinal bore g. As will be evident from FIG.
  • the cement material is in this instance underhigh pressure pressed from the outside through the thin bore e of the electrode a into the free space or gap between the nipple and the box.
  • the cement material passes through the longitudinal bore g also into the free spaces or gaps of the electrode b.
  • discs will form between the end surface of the nipple and the bottom of the box.
  • the bore e of the electrode b allows the air to escape from the intermediate spaces.
  • FIG. 3 shows the end face of the screw nipple with the depressions d.
  • the screw nipple connection shown therein comprises an electrode a and an electrode b which are firmly connected to each other by means of the screw nipple c.
  • semi-spherical depressions are provided in the end surfaces of the screw nipple and in the bottom of the threaded box. These depressions d are filled with a self-hardening cement material which is pressed at high pressure from the outside through bores e into the free spaces between the nipple and the box.
  • the thread of the nipple and of the box is provided with a plurality of longitudinal grooves h which are likewise filled with cement material.
  • the longitudinal grooves must be so designed and arranged that when screwing together the various parts, the grooves of the nipple will be opposite the grooves in the box so that the pressed-in cement material will create a plurality of studs which, together with the disc f between the nipple end face and the bottom of the box, will prevent the nipple from rotating.
  • FIG. 5 showing a section along the line V-V of FIG. 4, likewise indicates the electrode a and the threaded nipple c as well as the longitudinal grooves h filled with cement material, said grooves being provided in the thread of the nipple and the box.
  • the screw nipple connection according to the invention does not only prevent the connected parts from getting loose and detaching themselves from each other, but also assures a good current transfer at the end faces of the screw nipple.
  • a first electrode a second electrode having one end portion in engagement with an end portion of said first electrode, each of said end portions of said electrodes being provided with a threaded bore, a threaded nipple threadedly engaging said threaded bores and interconnecting said end portions of said electrodes, the end faces of said nipple and also the electrode surfaces respectively facing said end faces of said nipple being provided with depressions, and a self-hardening cement filling said depressions in said nipple and said electrodes, thereby anchoring Said electrodes and said nipples relative to each other and preventing rotation of said electrodes and said nipples with regard to each other.
  • a first electrode a second electrode having one end portion in engagement with an end portion of said first electrode, each of said end portions of said electrodes being provided with a threaded bore, a threaded nipple threadedly engaging said threaded bores and interconnecting said end portions of said electrodes, the end faces of said nipple and also the electrode surfaces adjacent to said end faces of said nipple being provided with depressions, at least one of said end portions of said electrodes being provided with a passage extending from the outside thereof to the adjacent depressions, and a self-hardening cement filling said passage and said depressions, thereby anchoring said electrodes and said nipples relative to each other and preventing rotation of said electrodes and said nipples with regard to each other.
  • a first electrode a second electrode having one end portion in engagement with an end portion of said first electrode, each of said end portions of said electrodes being provided with a threaded bore, a threaded nipple threadedly engaging said threaded bores and interconnecting said end portions of said electrodes, the thread of said nipple and the thread of said bores respectively being provided with grooves extending in longitudinal direction of said nipple and intersecting said thread of said nipple and of said bores, said grooves being filled with a self-hardening cement whereby said electrodes and said nipple are anchored to each other and prevented from rotating relative to each other.
  • a first electrode a second electrode having one end portion in engagement with an end portion of said first electrode, each of said end portions of said electrodes being provided with a threaded bore, a threaded nipple threadedly engaging said threaded bores and interconnecting said end portions of said electrodes, the thread of said nipple and the thread of said bores respectively being provided with grooves extending in longitudinal direction of said nipple and intersecting said thread of said nipple and of said bores, said grooves in said nipple and said grooves in said electrodes being in alignment with cach other and being filled with a selfhardening cement whereby ⁇ said electrodes and said nipple are anchored to each other and prevented from rotating relative to each other.
  • a method of securing to each other the adjacent end portions of electrodes provided with threaded bores and interconnected by a threaded nipple which includes the steps of: providing the end faces of said nipple with depressions and also those portions of said electrodes which face said end faces of said nipples, drilling a bore through at least one of said electrodes to said depressions, and introducing through said bore into said depressions binding substance of a self-hardening nature.
  • a first electrode a second electrode having one end portion in engagement with an end portion of said first electrode, each of said end portions of said electrodes being provided with a threaded bore, a threaded nipple threadedly engaging said threaded bores and interconnecting said end portions of said electrodes, the end faces of said nipple and also the electrode surfaces adjacent to said end faces of said nipple being provided with depressions, at least one of said end portions of said electrodes being provided with a passage extending from the outside thereof to the adjacent depressions, the thread of said nipple and the thread of said bores being provided with grooves extending from said passage in longitudinal direction of said nipple so as to intersect windings of the thread of said nipple, and a self-hardening cement filling said passage and said depressions and said grooves, thereby anchoring said electrodes and said nipple relative to each other and preventing rotation of said electrodes and said nipple with regard to each
  • a first electrode a second electrode having one end portion in engagement with an end portion of said first electrode7 each of said end portions of said electrodes being provided with a threaded bore, a threaded nipple threadedly engaging said threaded bores and interconnecting said end portions of said electrodes, and a selfhardening cement anchored in said end portions and said threaded nipple to thereby prevent rotation of said electrodes and said nipple relative to each other, said selfhardening cement containing a gas driving substance for aiding the electric conductivity of the connection of said electrodes at their connecting points.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Discharge Heating (AREA)
  • Furnace Details (AREA)
  • Prevention Of Electric Corrosion (AREA)
US828301D 1958-07-25 1959-07-20 Screw nipple connection for electrodes Expired - Lifetime US3048433A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEC17251A DE1057261B (de) 1958-07-25 1958-07-25 Sicherung der Schraubnippelverbindung bei Kohle- oder Graphitelektroden fuer elektrische OEfen gegen Lockerung
DEC17614A DE1143942B (de) 1958-07-25 1958-10-04 Sicherung der Schraubnippelverbindung bei Kohle- oder Graphitelektroden fuer elektrische OEfen gegen Lockerung

Publications (1)

Publication Number Publication Date
US3048433A true US3048433A (en) 1962-08-07

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US828301D Expired - Lifetime US3048433A (en) 1958-07-25 1959-07-20 Screw nipple connection for electrodes

Country Status (8)

Country Link
US (1) US3048433A (en, 2012)
BE (1) BE579104A (en, 2012)
CH (1) CH372396A (en, 2012)
DE (2) DE1057261B (en, 2012)
FR (1) FR1224483A (en, 2012)
GB (1) GB877352A (en, 2012)
LU (1) LU37186A1 (en, 2012)
NL (1) NL101950C (en, 2012)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3140967A (en) * 1959-04-30 1964-07-14 Siemens Planiawerke Ag Method of producing a cemented carbon electrode joint
US3260651A (en) * 1961-03-29 1966-07-12 Siemens Planiawerke Ag Gas and liquid tight joint of graphite bodies
US3313976A (en) * 1963-10-18 1967-04-11 Union Carbide Corp Joined arc carbons
US3472301A (en) * 1967-10-18 1969-10-14 Loctite Corp Self-sealing mechanical fastener
US3517957A (en) * 1967-10-23 1970-06-30 Great Lakes Carbon Corp Nipple-electrode assembly and joint and method of making same
US3549739A (en) * 1968-10-01 1970-12-22 Union Carbide Corp Strengthened arc carbon electrode joints
US3628006A (en) * 1969-12-19 1971-12-14 Tideland Signal Corp Signal lantern
US3727095A (en) * 1970-01-13 1973-04-10 Conradty Fa C Screw nipple connection for carbon and graphite electrodes
US3771889A (en) * 1971-08-30 1973-11-13 Great Lakes Carbon Corp Nipple-electrode assembly and joint
US3771887A (en) * 1971-08-30 1973-11-13 Great Lakes Carbon Corp Nipple-electrode assembly and joint
US3771886A (en) * 1971-08-30 1973-11-13 Great Lakes Carbon Corp Nipple-electrode assembly and joint
US3858994A (en) * 1971-09-27 1975-01-07 Carborundum Co Electrode nipple drilling machine and process
US3926172A (en) * 1974-10-29 1975-12-16 Raytheon Co Electric igniter for gas burners
US4208149A (en) * 1978-10-25 1980-06-17 Airco, Inc. Electrode connecting pin assembly
US4725161A (en) * 1986-09-05 1988-02-16 Union Carbide Corporation Electrode joint
US4773282A (en) * 1987-04-06 1988-09-27 Pneumo Abex Corporation Piston rod assembly including an injection bonded piston head and fabrication method
US4813805A (en) * 1988-05-05 1989-03-21 Union Carbide Corporation Joint for carbon electrodes
US5209525A (en) * 1990-03-28 1993-05-11 Ngk Insulators, Ltd. Bonded ceramic structure
US5807014A (en) * 1992-05-30 1998-09-15 Home Co., Ltd. Connector, method for connecting structural members with connector and connection structure between structural members
US6036397A (en) * 1993-10-30 2000-03-14 Home Co., Ltd. Connector having passages for adhesive flow
US6119425A (en) * 1995-12-01 2000-09-19 Shimonohara; Takeshige Structure members and a method of jointing the same
US20050271114A1 (en) * 2004-06-03 2005-12-08 Mark Segger Electrode joint locking system
US20070110120A1 (en) * 2005-11-16 2007-05-17 Bill Varela Joint design
US20080230172A1 (en) * 2006-07-19 2008-09-25 Saphirwerk Industrieprodukte Ag Fixing kit and method for fixing a stem in a holder by means of adhesive
US20120234598A1 (en) * 2009-10-23 2012-09-20 Sgl Carbon Se Connection piece made of a composite of graphite and carbon-fiber-reinforced carbon and method of manufacturing the connection piece
US20220143740A1 (en) * 2020-11-06 2022-05-12 Dmc Global Inc. Method and apparatus for additive friction stir manufactured transition joint

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1294578B (de) * 1963-08-16 1969-05-08 Conradty Fa C Verfahren zur Sicherung der Schraubverbindung zwischen Kohle- oder Graphitelektroden und Sicherungsformling zur Durchfuehrung des Verfahrens
DE3147793A1 (de) * 1981-12-03 1983-06-09 Sigri Elektrographit Gmbh, 8901 Meitingen Fertigungsstrasse fuer graphitnippel mit vorrichtungen zur herstellung von speicherbohrungen und zum fuellen der bohrungen mit einem binder
US4729689A (en) * 1984-12-13 1988-03-08 Union Carbide Corporation Electrode member and process for the production thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR472856A (fr) * 1914-05-26 1914-12-22 Fr Des Electrodes Soc Perfectionnement aux raccords de jonction des électrodes en charbon
US1850515A (en) * 1930-01-23 1932-03-22 Peltz Georg Device for joining carbon electrodes
US2093390A (en) * 1934-12-19 1937-09-14 Union Carbide & Carbon Corp Means and method of making electrode joints
US2158845A (en) * 1937-04-14 1939-05-16 Gen Electric Cementing process
US2510230A (en) * 1949-01-15 1950-06-06 Union Carbide & Carbon Corp Electrode joint

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE543138C (de) * 1930-02-20 1932-02-01 Marcel Paul Perron Stromzufuehrung fuer Elektroden elektrischer OEfen
DE886507C (de) * 1941-12-07 1953-08-13 Siemens Planiawerke Ag Verfahren zum Verbinden von kontinuierlich arbeitenden Kohleelektroden fuer elektrische OEfen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR472856A (fr) * 1914-05-26 1914-12-22 Fr Des Electrodes Soc Perfectionnement aux raccords de jonction des électrodes en charbon
US1850515A (en) * 1930-01-23 1932-03-22 Peltz Georg Device for joining carbon electrodes
US2093390A (en) * 1934-12-19 1937-09-14 Union Carbide & Carbon Corp Means and method of making electrode joints
US2158845A (en) * 1937-04-14 1939-05-16 Gen Electric Cementing process
US2510230A (en) * 1949-01-15 1950-06-06 Union Carbide & Carbon Corp Electrode joint
CH287703A (fr) * 1949-01-15 1952-12-15 Union Carbide & Carbon Corp Procédé de jonction de deux corps en matière carbonée et joint obtenu au moyen de ce procédé.

Cited By (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3140967A (en) * 1959-04-30 1964-07-14 Siemens Planiawerke Ag Method of producing a cemented carbon electrode joint
US3260651A (en) * 1961-03-29 1966-07-12 Siemens Planiawerke Ag Gas and liquid tight joint of graphite bodies
US3313976A (en) * 1963-10-18 1967-04-11 Union Carbide Corp Joined arc carbons
US3472301A (en) * 1967-10-18 1969-10-14 Loctite Corp Self-sealing mechanical fastener
US3517957A (en) * 1967-10-23 1970-06-30 Great Lakes Carbon Corp Nipple-electrode assembly and joint and method of making same
US3549739A (en) * 1968-10-01 1970-12-22 Union Carbide Corp Strengthened arc carbon electrode joints
US3628006A (en) * 1969-12-19 1971-12-14 Tideland Signal Corp Signal lantern
US3727095A (en) * 1970-01-13 1973-04-10 Conradty Fa C Screw nipple connection for carbon and graphite electrodes
US3771889A (en) * 1971-08-30 1973-11-13 Great Lakes Carbon Corp Nipple-electrode assembly and joint
US3771887A (en) * 1971-08-30 1973-11-13 Great Lakes Carbon Corp Nipple-electrode assembly and joint
US3771886A (en) * 1971-08-30 1973-11-13 Great Lakes Carbon Corp Nipple-electrode assembly and joint
US3858994A (en) * 1971-09-27 1975-01-07 Carborundum Co Electrode nipple drilling machine and process
US3926172A (en) * 1974-10-29 1975-12-16 Raytheon Co Electric igniter for gas burners
US4208149A (en) * 1978-10-25 1980-06-17 Airco, Inc. Electrode connecting pin assembly
US4725161A (en) * 1986-09-05 1988-02-16 Union Carbide Corporation Electrode joint
US4773282A (en) * 1987-04-06 1988-09-27 Pneumo Abex Corporation Piston rod assembly including an injection bonded piston head and fabrication method
US4813805A (en) * 1988-05-05 1989-03-21 Union Carbide Corporation Joint for carbon electrodes
US5209525A (en) * 1990-03-28 1993-05-11 Ngk Insulators, Ltd. Bonded ceramic structure
US5807014A (en) * 1992-05-30 1998-09-15 Home Co., Ltd. Connector, method for connecting structural members with connector and connection structure between structural members
US5906451A (en) * 1992-05-30 1999-05-25 Home Co. Ltd. Connector, method for connecting structural members with connector and connection structure between structural members
US6200061B1 (en) * 1992-05-30 2001-03-13 Home Co., Ltd. Connector, method for connecting structural members with connector and connection structure between structural members
US6036397A (en) * 1993-10-30 2000-03-14 Home Co., Ltd. Connector having passages for adhesive flow
US6119425A (en) * 1995-12-01 2000-09-19 Shimonohara; Takeshige Structure members and a method of jointing the same
US20050271114A1 (en) * 2004-06-03 2005-12-08 Mark Segger Electrode joint locking system
US9313834B2 (en) * 2004-06-03 2016-04-12 GrafTech Institute Holdings Inc. Electrode joint locking system
US7230969B2 (en) * 2004-06-03 2007-06-12 Ucar Carbon Company Inc. Electrode joint locking system
US20070217477A1 (en) * 2004-06-03 2007-09-20 Mark Segger Electrode joint locking system
WO2007061528A3 (en) * 2005-11-16 2008-01-03 Ucar Carbon Co Inc Joint design
US8165183B2 (en) 2005-11-16 2012-04-24 Graftech International Holdings, Inc. Joint design
US20070110120A1 (en) * 2005-11-16 2007-05-17 Bill Varela Joint design
US20080230172A1 (en) * 2006-07-19 2008-09-25 Saphirwerk Industrieprodukte Ag Fixing kit and method for fixing a stem in a holder by means of adhesive
US20120234598A1 (en) * 2009-10-23 2012-09-20 Sgl Carbon Se Connection piece made of a composite of graphite and carbon-fiber-reinforced carbon and method of manufacturing the connection piece
US9198235B2 (en) * 2009-10-23 2015-11-24 Sgl Carbon Se Connection piece made of a composite of graphite and carbon-fiber-reinforced carbon and method of manufacturing the connection piece
US20220143740A1 (en) * 2020-11-06 2022-05-12 Dmc Global Inc. Method and apparatus for additive friction stir manufactured transition joint
US12055186B2 (en) * 2020-11-06 2024-08-06 Dmc Global Inc. Method and apparatus for additive friction stir manufactured transition joint
US20240344567A1 (en) * 2020-11-06 2024-10-17 Dmc Global Inc. Method and apparatus for additive friction stir manufactured transition joint

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FR1224483A (fr) 1960-06-24
DE1057261B (de) 1959-05-14
DE1143942B (de) 1963-02-21
BE579104A (fr) 1959-09-16
GB877352A (en) 1961-09-13
CH372396A (de) 1963-10-15
NL101950C (en, 2012) 1900-01-01
LU37186A1 (en, 2012)

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