GB208268A - Improvements in dynamo-electric generators for electric welding - Google Patents
Improvements in dynamo-electric generators for electric weldingInfo
- Publication number
- GB208268A GB208268A GB2632922A GB2632922A GB208268A GB 208268 A GB208268 A GB 208268A GB 2632922 A GB2632922 A GB 2632922A GB 2632922 A GB2632922 A GB 2632922A GB 208268 A GB208268 A GB 208268A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrodes
- current
- electric
- dynamo
- alternating
- 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
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)
- Arc Welding Control (AREA)
Abstract
208,268. Mawdsley, J. H. St. H. Sept. 29, 1922. Exciting.-A dynamo 1, Fig. 1, for electric welding supplies continuous current to the electrodes 3, 4 and, by means of slip-rings 2, it also supplies alternating current to the electrodes through a transformer 5 until the arc is struck. The welding current is steadied by a reactance 7, which may be in two parts a, b, the part b being short-circuited by the switch 6 when this switch is opened to disconnect the alternating supply after the arc has been struck. In the form shown in Fig 2, the commutator of the machine 1 excites a continuous-current machine 9 which is connected to the electrodes, to which the sliprings are also connected directly. A transformer may alternatively be used in the alternating- current circuit as in Fig. 1. When a number of electrodes is used, each set of electrodes has a set of reactances and automatic switches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2632922A GB208268A (en) | 1922-09-29 | 1922-09-29 | Improvements in dynamo-electric generators for electric welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2632922A GB208268A (en) | 1922-09-29 | 1922-09-29 | Improvements in dynamo-electric generators for electric welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB208268A true GB208268A (en) | 1923-12-20 |
Family
ID=10241942
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2632922A Expired GB208268A (en) | 1922-09-29 | 1922-09-29 | Improvements in dynamo-electric generators for electric welding |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB208268A (en) |
-
1922
- 1922-09-29 GB GB2632922A patent/GB208268A/en not_active Expired
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