GB272218A - Improvements in and relating to electric arc welding - Google Patents

Improvements in and relating to electric arc welding

Info

Publication number
GB272218A
GB272218A GB14723/27A GB1472327A GB272218A GB 272218 A GB272218 A GB 272218A GB 14723/27 A GB14723/27 A GB 14723/27A GB 1472327 A GB1472327 A GB 1472327A GB 272218 A GB272218 A GB 272218A
Authority
GB
United Kingdom
Prior art keywords
circuit
arc
coils
switches
double frequency
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
Application number
GB14723/27A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB272218A publication Critical patent/GB272218A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/06—Arrangements or circuits for starting the arc, e.g. by generating ignition voltage, or for stabilising the arc
    • B23K9/073—Stabilising the arc
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
    • B23K9/1006—Power supply
    • B23K9/1043—Power supply characterised by the electric circuit
    • B23K9/1068—Electric circuits for the supply of power to two or more arcs from a single source

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding Control (AREA)

Abstract

272,218. British Thomson-Houston Co., Ltd., (Assignees of Weed, J. M.). June 2, 1926, [Convention date]. Phase, changing.-A current of substantially rectangular wave shape is supplied to a welding arc. This is effected by inserting in the arc circuit two iron cored reactances 1, 2 excited by d.c. coils 3, 4, the excitation being carried beyond the saturation point. The a.c. coils 8, 9 are arranged in opposition, and the double frequency current they produce in the d.c. circuit is choked out by a reactance 10. The double frequency current can be entirely eliminated by coupling two arcs to a two-phase circuit, as in Fig. 2. In this case compensating resistances 23 are fitted in shunt to the arc, the circuit through the resistances being opened or closed by switches 21 controlled by switches 19.
GB14723/27A 1926-06-02 1927-06-01 Improvements in and relating to electric arc welding Expired GB272218A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US272218XA 1926-06-02 1926-06-02

Publications (1)

Publication Number Publication Date
GB272218A true GB272218A (en) 1927-10-13

Family

ID=21836418

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14723/27A Expired GB272218A (en) 1926-06-02 1927-06-01 Improvements in and relating to electric arc welding

Country Status (1)

Country Link
GB (1) GB272218A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7033543B1 (en) 1999-04-16 2006-04-25 Hamilton Bonaduz Ag Pipette tip, pipetting device and combination consisting of a pipette tip and pipetting device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7033543B1 (en) 1999-04-16 2006-04-25 Hamilton Bonaduz Ag Pipette tip, pipetting device and combination consisting of a pipette tip and pipetting device

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