GB583230A - Improvements in or relating to apparatus for electric brazing or the like - Google Patents
Improvements in or relating to apparatus for electric brazing or the likeInfo
- Publication number
- GB583230A GB583230A GB3871/44A GB387144A GB583230A GB 583230 A GB583230 A GB 583230A GB 3871/44 A GB3871/44 A GB 3871/44A GB 387144 A GB387144 A GB 387144A GB 583230 A GB583230 A GB 583230A
- Authority
- GB
- United Kingdom
- Prior art keywords
- welding
- choke
- yoke
- current
- transformer
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
- H01H11/04—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts
- H01H11/041—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts by bonding of a contact marking face to a contact body portion
- H01H11/043—Apparatus or processes specially adapted for the manufacture of electric switches of switch contacts by bonding of a contact marking face to a contact body portion by resistance welding
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Resistance Welding (AREA)
Abstract
583,230. Supply systems for resistance welding and the like. IGRANIC ELECTRIC CO., Ltd. March 1, 1944, No. 3871. Convention date, March 1, 1943. [Class 38 (iv)] A supply system for a spot welding or brazing transformer 6 includes in circuit with the transformer a variable reactance, such as a choke 10, the impedance of which is automatically increased at a controlled rate upon flow of current, so that the energization of the transformer is reduced as the welding &c. operation proceeds. The iron circuit of the choke may comprise a fixed portion 12 and a movable portion 13 pivoted to the former and constituting a yoke which is normally biassed away from the fixed portion by a weight 14. As the yoke is attracted to the fixed portion by current flowing in the winding 11, the inductance of the choke increases at a rate determined by a dashpot 15 connected to the yoke. The welding &c. operation is effected as follows : with the work 1 placed between the electrodes 3, 4, starting switch 18 is closed, thereby energizing a self-holding contactor 9 which connects the choke and transformer primary across the supply lines. Welding proceeds with diminishing current until the holding circuit of contactor 9 is interrupted by a stud 20 carried by yoke 13 opening a normally closed switch 19. In a modified arrangement, the choke is arranged to shunt current from a spot-welding circuit, so that the welding current is progressively increased. In another arrangement, a condenser replaces the choke as the variable reactance.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US583230XA | 1943-03-01 | 1943-03-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB583230A true GB583230A (en) | 1946-12-12 |
Family
ID=22016104
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3871/44A Expired GB583230A (en) | 1943-03-01 | 1944-03-01 | Improvements in or relating to apparatus for electric brazing or the like |
Country Status (2)
Country | Link |
---|---|
BE (1) | BE583230A (en) |
GB (1) | GB583230A (en) |
-
1944
- 1944-03-01 GB GB3871/44A patent/GB583230A/en not_active Expired
-
1959
- 1959-10-01 BE BE583230A patent/BE583230A/en unknown
Also Published As
Publication number | Publication date |
---|---|
BE583230A (en) | 1960-02-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2365611A (en) | Welding system | |
US2449456A (en) | Arc welding control system | |
GB547749A (en) | Improvements in and relating to electric circuit timing arrangements | |
GB1011396A (en) | Electric arc welding apparatus | |
US2486165A (en) | Welding transformer control system | |
US2960626A (en) | Starting control for d. c. saturation controlled arc welding apparatus | |
GB583230A (en) | Improvements in or relating to apparatus for electric brazing or the like | |
US2802146A (en) | Electric discharge apparatus | |
GB607269A (en) | Improvements in transformers with regulable output current | |
US1480857A (en) | Electric-arc-welding system | |
GB439900A (en) | Improvements relating to the art of electric arc welding | |
US2540838A (en) | Welding transformer control system | |
GB508921A (en) | Improvements in and relating to electric resistance welding | |
GB707545A (en) | Improvements in and relating to the welding of studs and the like by means of alternating currents | |
US2668273A (en) | Voltage reducing device for welding transformers | |
GB566204A (en) | Improvements in electric welding systems using fusible electrodes | |
GB551058A (en) | Improvements in electrical switching apparatus especially adapted for use with pneumatic tube conveying systems | |
GB521956A (en) | Improvements in or relating to arc welding systems | |
GB750372A (en) | Improvements in or relating to alternating current arc welding equipment | |
GB568211A (en) | Improvements in or relating to spot welding machines | |
GB601379A (en) | Improvements in and relating to electric resistance welding devices | |
GB1090000A (en) | Welding system | |
GB599548A (en) | Improvements in or relating to mercury arc rectifiers | |
GB569540A (en) | An improved method of electric welding | |
GB824441A (en) | Improvements in or relating to safety control devices for welding tools |