GB318948A - Improvements in dynamo-electric generators for electric welding - Google Patents

Improvements in dynamo-electric generators for electric welding

Info

Publication number
GB318948A
GB318948A GB1711428A GB1711428A GB318948A GB 318948 A GB318948 A GB 318948A GB 1711428 A GB1711428 A GB 1711428A GB 1711428 A GB1711428 A GB 1711428A GB 318948 A GB318948 A GB 318948A
Authority
GB
United Kingdom
Prior art keywords
transformer
switch
dynamo
electric
commutator
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
GB1711428A
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.)
JOHN HERBERT ST HILL MAWDSLEY
Original Assignee
JOHN HERBERT ST HILL MAWDSLEY
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 JOHN HERBERT ST HILL MAWDSLEY filed Critical JOHN HERBERT ST HILL MAWDSLEY
Priority to GB1711428A priority Critical patent/GB318948A/en
Publication of GB318948A publication Critical patent/GB318948A/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
    • B23K9/067—Starting the arc
    • B23K9/0671—Starting the arc by means of brief contacts between the electrodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Mechanical Engineering (AREA)
  • Motor Or Generator Current Collectors (AREA)
  • Arc Welding Control (AREA)

Abstract

318,948. Mawdsley, J. H. St. H. June, 13, 1928. Systems for supplying consuming devices. - An arc welding arrangement comprises a dynamo having its armature winding connected to a commutator 11 and a pair of slip rings 12 and its commutator c o n - nected to the electrodes 13, 14, a transformer having its primary 15 connected to the slip rings and its secondary 16 in the welding circuit, and a switch 17 which opens the primary circuit of the. transformer when the arc is struck. If the reactance of the secondary 16 is insufficient an auxiliary reactance may be provided. The core has a reduced portion which is saturated when a small current passes through the secondary winding. In Fig. 1 the switch 17 is operated by a coil 18. In Fig. 2 the switch comprises a pivoted arm 19 carrying an armature 22 and is mounted on the transformer adjacent an air gap in the core so that it is operated by leakage flux. A balancing resistance 21 is provided. Specifications 208,268 and 231,984 are referred to.
GB1711428A 1928-06-13 1928-06-13 Improvements in dynamo-electric generators for electric welding Expired GB318948A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1711428A GB318948A (en) 1928-06-13 1928-06-13 Improvements in dynamo-electric generators for electric welding

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1711428A GB318948A (en) 1928-06-13 1928-06-13 Improvements in dynamo-electric generators for electric welding

Publications (1)

Publication Number Publication Date
GB318948A true GB318948A (en) 1929-09-13

Family

ID=10089488

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1711428A Expired GB318948A (en) 1928-06-13 1928-06-13 Improvements in dynamo-electric generators for electric welding

Country Status (1)

Country Link
GB (1) GB318948A (en)

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