GB802377A - Method and apparatus for electric arc welding - Google Patents
Method and apparatus for electric arc weldingInfo
- Publication number
- GB802377A GB802377A GB6368/56A GB636856A GB802377A GB 802377 A GB802377 A GB 802377A GB 6368/56 A GB6368/56 A GB 6368/56A GB 636856 A GB636856 A GB 636856A GB 802377 A GB802377 A GB 802377A
- Authority
- GB
- United Kingdom
- Prior art keywords
- circuit
- main
- auxiliary
- phase
- output
- 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
- B23K9/10—Other electric circuits therefor; Protective circuits; Remote controls
- B23K9/1006—Power supply
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding Control (AREA)
Abstract
802,377. Supplying welding arcs. AIR REDUCTION CO., Inc. Feb. 29, 1956 [March 16, 1955], No. 6368/56. Class 38 (4). A main welding circuit comprises a full-wave rectifier 16 and has preferably a high current output and a low open-circuit voltage. An auxiliary keep-alive circuit comprises a fullwave rectifier 26 and has an output which is out-of-phase with the output of the main circuit and is connected in parallel with the main circuit across the welding arc. The keepalive circuit may have a relatively low current output and a relatively high open-circuit voltage. The main and auxiliary circuits are energized from the same single-phase source, and as shown, are connected to separate secondary windings of a common transformer. A variable inductance is provided for current control in the main circuit, whilst a phaseshifting capacitor 27 and current limiting resistor 28 are connected in the auxiliary circuit. In a modification, the main and auxiliary circuits are energized through different transformers connected to the same single-phase source, Fig. 4 (not shown). The phase-shifting component for the keep-alive circuit is then located in the primary circuit of the associated transformer.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US802377XA | 1955-03-16 | 1955-03-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB802377A true GB802377A (en) | 1958-10-01 |
Family
ID=22156097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6368/56A Expired GB802377A (en) | 1955-03-16 | 1956-02-29 | Method and apparatus for electric arc welding |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR1147210A (en) |
| GB (1) | GB802377A (en) |
-
1956
- 1956-02-29 GB GB6368/56A patent/GB802377A/en not_active Expired
- 1956-03-15 FR FR1147210D patent/FR1147210A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1147210A (en) | 1957-11-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB922119A (en) | Transistor power inverter | |
| GB802377A (en) | Method and apparatus for electric arc welding | |
| GB649832A (en) | Improvements in an apparatus for supplying alternating current for arc welding | |
| GB499280A (en) | Improvements in and relating to electric valve circuits | |
| US2957086A (en) | Arc welding apparatus | |
| US2197215A (en) | Voltage regulating means for alternating current arc welding | |
| JPS55141978A (en) | Dc high-voltage generating device | |
| GB574980A (en) | Improvements in combinations of electric discharge lamps with means for operating them | |
| GB799004A (en) | Single-phase transformer, more particularly for electric traction motors | |
| GB647712A (en) | Static equipment for arc and resistance welding | |
| GB1059636A (en) | Working metals by electro-erosion | |
| GB812055A (en) | Improvements in and relating to electric carbon arc supply circuits | |
| GB562638A (en) | Improvements in or relating to regulating apparatus for the voltage supplied to direct current apparatus from a source of alternating voltage | |
| GB565148A (en) | Improvements in electric current converting arrangements comprising valves of the immersion ignitor type | |
| GB1032306A (en) | ||
| GB562206A (en) | Improvements relating to the supply of single phase alternating electric current load circuits from three-phase supply circuits | |
| GB584420A (en) | Improvements relating to voltage regulating apparatus for polyphase alternating current circuits | |
| GB616049A (en) | Improvements in circuits for electric discharge apparatus | |
| GB722823A (en) | Improvements in or relating to operating systems for a discharge lamp | |
| GB612191A (en) | Improvements relating to apparatus for operating devices having a negative resistance characteristic from an alternating electric current supply circuit | |
| GB783738A (en) | Grid-controlled mercury-arch rectifier | |
| GB546836A (en) | Improvements in and relating to electric valve control circuits | |
| GB738300A (en) | Improvements relating to rectifier equipments and to interphase transformers therefor | |
| GB541632A (en) | Improvements relating to supply arrangements for control circuits of electric discharge apparatus | |
| GB611810A (en) | Improvements in or relating to the control of alternating currents in parallel-connected load-circuits |