US2698871A - Electrode holding device for electrothermic melting furnaces - Google Patents

Electrode holding device for electrothermic melting furnaces Download PDF

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Publication number
US2698871A
US2698871A US217364A US21736451A US2698871A US 2698871 A US2698871 A US 2698871A US 217364 A US217364 A US 217364A US 21736451 A US21736451 A US 21736451A US 2698871 A US2698871 A US 2698871A
Authority
US
United States
Prior art keywords
electrode
holding device
contact plates
contact
rope
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
US217364A
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English (en)
Inventor
Ritter Friedbert
Reichert Hans
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.)
AKTIEN-GESELLSCHAFT fur STICKSTOFFDUNGER KNAPSACK
fur STICKSTOFFDUNGER KNAPSACK
Original Assignee
fur STICKSTOFFDUNGER KNAPSACK
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 fur STICKSTOFFDUNGER KNAPSACK filed Critical fur STICKSTOFFDUNGER KNAPSACK
Application granted granted Critical
Publication of US2698871A publication Critical patent/US2698871A/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
    • H05B7/00—Heating by electric discharge
    • H05B7/02—Details
    • H05B7/10—Mountings, supports, terminals or arrangements for feeding or guiding electrodes
    • H05B7/103—Mountings, supports or terminals with jaws
    • H05B7/105—Mountings, supports or terminals with jaws comprising more than two jaws equally spaced along circumference, e.g. ring holders
    • 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
    • H05B7/10—Mountings, supports, terminals or arrangements for feeding or guiding electrodes

Definitions

  • a great variety of devices is used for holding the electrodes of electrothermic melting furnaces.
  • Rigid or flexible rings are used in most cases as holders for larger electrodes.
  • the ring of rigid design for the pressure contact plates which must be of large dimensions, is frequently deformed after being in operation for a short period to such an extent that expensive repairs involving stoppages become necessary.
  • an unvarying, uniform contact pressure cannot be achieved, and this is of particular disadvantage in the case of the relatively plastic electrodes.
  • a rope which can be endless or coupled, is particularly suitable as a flexible ring and, in this case also, the tightening and loosening of the contact plates can be effected either directly as shown in Fig. 3 or indirectly as shown in Figs. 1 and 2.
  • the movement of the contact plates for obtaining a tightening or loosening effect is carried out by narrowing and widening the circumference and thus, although the original circumference remains practically the same, the shape of the ring is altered.
  • the ring forms, as long as it is loose, a larger circle or polygon lying in a plane approximately vertical to the axis of the electrode. To press the contact plates onto the electrode the diameter of this circle must be decreased.
  • Fig. 2 shows a perspective view of a modification in which a roll is substituted for the lever in Fig. 1;

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Furnace Details (AREA)
US217364A 1950-04-03 1951-03-24 Electrode holding device for electrothermic melting furnaces Expired - Lifetime US2698871A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE293557X 1950-04-03

Publications (1)

Publication Number Publication Date
US2698871A true US2698871A (en) 1955-01-04

Family

ID=6079948

Family Applications (1)

Application Number Title Priority Date Filing Date
US217364A Expired - Lifetime US2698871A (en) 1950-04-03 1951-03-24 Electrode holding device for electrothermic melting furnaces

Country Status (5)

Country Link
US (1) US2698871A (enrdf_load_stackoverflow)
BE (1) BE501939A (enrdf_load_stackoverflow)
CH (1) CH293557A (enrdf_load_stackoverflow)
FR (1) FR1034048A (enrdf_load_stackoverflow)
NL (1) NL79608C (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2778865A (en) * 1956-01-09 1957-01-22 Elektrokemisk As Suspension mechanism for continuous type electrodes and method of operation
US2812375A (en) * 1955-06-20 1957-11-05 Mc Graw Edison Co Power clamp for furnace electrode
US2872494A (en) * 1954-10-13 1959-02-03 Knapsack Ag Device for tightening and loosening current supply plates on electrodes in electric furnaces
FR2856234A1 (fr) * 2003-06-16 2004-12-17 Fai Production Dispositif de connexion electrique d'une electrode, en particulier d'une electrode d'un four metallurgique

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB118023A (enrdf_load_stackoverflow) *
GB130687A (en) * 1918-03-14 1919-08-14 Colin Clarence Gow Improvements relating to the Mounting of Electrodes of Electric Furnaces.
DE421131C (de) * 1925-03-25 1925-11-06 Maschf Ag Fa Deutsche Abdichtung der Elektroden von Elektrooefen
AT128329B (de) * 1929-05-31 1932-05-25 Siemens Ag Sicherungseinrichtung für in Abhängigkeit von einer Kraftquelle gehaltene Elektroden elektrischer Öfen.
FR808604A (fr) * 1935-07-05 1937-02-11 Procédé permettant d'abaisser continuellement les électrodes des fours de fusion à arc
US2135408A (en) * 1936-04-24 1938-11-01 Pittsburgh Res Corp Electrode clamp
FR846600A (fr) * 1937-11-26 1939-09-20 Norske Elektrokemisk Ind As Joint annulaire pour électrodes de fours électriques
US2477077A (en) * 1946-03-09 1949-07-26 Delaware Engineering Corp Electrode clamp

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB118023A (enrdf_load_stackoverflow) *
GB130687A (en) * 1918-03-14 1919-08-14 Colin Clarence Gow Improvements relating to the Mounting of Electrodes of Electric Furnaces.
DE421131C (de) * 1925-03-25 1925-11-06 Maschf Ag Fa Deutsche Abdichtung der Elektroden von Elektrooefen
AT128329B (de) * 1929-05-31 1932-05-25 Siemens Ag Sicherungseinrichtung für in Abhängigkeit von einer Kraftquelle gehaltene Elektroden elektrischer Öfen.
FR808604A (fr) * 1935-07-05 1937-02-11 Procédé permettant d'abaisser continuellement les électrodes des fours de fusion à arc
US2135408A (en) * 1936-04-24 1938-11-01 Pittsburgh Res Corp Electrode clamp
FR846600A (fr) * 1937-11-26 1939-09-20 Norske Elektrokemisk Ind As Joint annulaire pour électrodes de fours électriques
US2477077A (en) * 1946-03-09 1949-07-26 Delaware Engineering Corp Electrode clamp

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2872494A (en) * 1954-10-13 1959-02-03 Knapsack Ag Device for tightening and loosening current supply plates on electrodes in electric furnaces
US2812375A (en) * 1955-06-20 1957-11-05 Mc Graw Edison Co Power clamp for furnace electrode
US2778865A (en) * 1956-01-09 1957-01-22 Elektrokemisk As Suspension mechanism for continuous type electrodes and method of operation
FR2856234A1 (fr) * 2003-06-16 2004-12-17 Fai Production Dispositif de connexion electrique d'une electrode, en particulier d'une electrode d'un four metallurgique
WO2005009084A1 (fr) * 2003-06-16 2005-01-27 Fai Production Dispositif de connexion electrique d'une electrode, en particulier d'une electrode d'un four metallurgique

Also Published As

Publication number Publication date
BE501939A (enrdf_load_stackoverflow)
NL79608C (enrdf_load_stackoverflow)
FR1034048A (fr) 1953-07-17
CH293557A (de) 1953-09-30

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