GB633186A - Improvements in or relating to alternating current welding apparatus - Google Patents
Improvements in or relating to alternating current welding apparatusInfo
- Publication number
- GB633186A GB633186A GB2823847A GB2823847A GB633186A GB 633186 A GB633186 A GB 633186A GB 2823847 A GB2823847 A GB 2823847A GB 2823847 A GB2823847 A GB 2823847A GB 633186 A GB633186 A GB 633186A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transformer
- welding
- relay
- current
- circuit
- 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
- B23K9/1012—Power supply characterised by parts of the process
- B23K9/1031—Reduction of the arc voltage beneath the arc striking value, e.g. to zero voltage, during non-welding periods
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Arc Welding Control (AREA)
Abstract
633,186. Supply systems for welding. ANGLO-IRANIAN OIL CO., Ltd., and BEAUMONT, F. N. Oct. 22, 1947, No. 28238. [Class 38 (iv)] To obtain a low no-load voltage on a welding electrode 5 a current transformer 7 is connected in the secondary circuit of the welding transformer 2 and designed to saturate at a low current. When the electrode is brought into contact with the work 6 the secondary current of the current transformer actuates a relay 8 to short-circuit, directly or indirectly, an impedance 1 in the primary circuit of the welding transformer. The transformer 7 may have a bar primary or the secondary circuit conductor may so serve. The relay 8 preferably has completely sealed mercury contacts and may control a second relay. The elements 1, 7 and 8 may be housed in a single unit. The impedance may be a resistance or choke, and variable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2823847A GB633186A (en) | 1947-10-22 | 1947-10-22 | Improvements in or relating to alternating current welding apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2823847A GB633186A (en) | 1947-10-22 | 1947-10-22 | Improvements in or relating to alternating current welding apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB633186A true GB633186A (en) | 1949-12-12 |
Family
ID=10272513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2823847A Expired GB633186A (en) | 1947-10-22 | 1947-10-22 | Improvements in or relating to alternating current welding apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB633186A (en) |
-
1947
- 1947-10-22 GB GB2823847A patent/GB633186A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1244045A (en) | Improvements in or relating to circuit breaking apparatus | |
| ES238743A1 (en) | Electric arc process and apparatus | |
| ES470730A1 (en) | Improvements relating to electrical fault sensitive apparatus for use with mains powered earthed electrical installations | |
| JPS568956A (en) | Three-terminal electric power source circuit for telephone set | |
| US3621193A (en) | Positive contact resistance soldering unit | |
| GB633186A (en) | Improvements in or relating to alternating current welding apparatus | |
| HK34482A (en) | Driver circuit in combination with an electrochromic display device | |
| GB676402A (en) | Improvements in electric resistance brazing and other electric resistance heat generating apparatus | |
| JPS5680373A (en) | Controlling device for arc welding machine | |
| GB612219A (en) | Improvements in circuits and in apparatus for indirect testing processes, to determine the making and breaking capacity of electric switches and circuit breakers | |
| GB644489A (en) | Improvements in or relating to air-blast electric circuit breakers | |
| JPS57203973A (en) | Measuring device for electrical conductivity | |
| JPS5784621A (en) | Alternating current two wire type proximity switch | |
| ES318996A1 (en) | A continuous current circuit provision that includes a pair of opposite polarity conductors with a brush pulse deviator. (Machine-translation by Google Translate, not legally binding) | |
| GB898089A (en) | Improvements in and relating to resistance welding | |
| GB647712A (en) | Static equipment for arc and resistance welding | |
| GB256236A (en) | Improvements in or relating to apparatus for the treatment of organisms with electrical current | |
| GB1062893A (en) | Improvements relating to the synthetic testing of high voltage electric circuit-breakers | |
| GB675080A (en) | Apparatus for indicating percentage change in concentration of a solution | |
| JPS5575125A (en) | Checking apparatus for starting safety | |
| ES432742A1 (en) | Improvements in appliances for the welding of metals by electric arc. (Machine-translation by Google Translate, not legally binding) | |
| GB686611A (en) | Arrangement for controlling resistance welding machines | |
| JPS5439509A (en) | Dc current supplying circuit | |
| GB919966A (en) | Improvements in alternating current arc welding systems | |
| GB727311A (en) | Improvements in and relating to alternating current welding apparatus |