GB511477A - Improvements in and relating to electric welding machines - Google Patents
Improvements in and relating to electric welding machinesInfo
- Publication number
- GB511477A GB511477A GB1650/39A GB165039A GB511477A GB 511477 A GB511477 A GB 511477A GB 1650/39 A GB1650/39 A GB 1650/39A GB 165039 A GB165039 A GB 165039A GB 511477 A GB511477 A GB 511477A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrode
- rod
- crank
- pressure
- arm
- 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
- B23K11/00—Resistance welding; Severing by resistance heating
- B23K11/30—Features relating to electrodes
- B23K11/31—Electrode holders and actuating devices therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Resistance Welding (AREA)
Abstract
511,477. Welding. BRITISH THOMSONHOUSTON CO., Ltd. Jan. 17, 1939, No. 1650. Convention date, Jan 17, 1938. [Class 83 (iv)] In an electric spot or lap welding-machine of the kind in which the movable electrode is moved by a rigid member which is connected to a flexible member so that the rigid member is first moved alone to apply the electrode to the work whereupon the. connection between the rigid member and the flexible member causes the latter to apply the welding pressure automatically, the pressure is transmitted from the flexible member to the electrode through a bell crank lever and articulated levers, which latter are operated by a rigid rod driven by a crank so as first to apply the electrode to the work and then to rock the bell crank to transmit pressure from the flexible member to the electrode. The fixed electrode 4 is connected by an arm 2 to the casing 1 and the movable electrode-5 to a slide 6 carried by the arm 3. The slide'6 6 is connected to a toggle 8 connected near the snapjoint 13 to a rigid rod 14 reciprocated by a crank 15. The toggle is connected by a crank lever 9 and bar 10 to one end of a spring 11, the other end of which is fixed to the arm 3, the initial tension of the spring being adjusted by a load wheel 12. When the crank 15 is put in position by pressure on a foot switch 22, the electrode 5 is first moved into contact with the work by the rod 14, whereupon when further downward motion thereof is resisted the rod 14 through lever 9 and bar 10 increases the tension of the spring 11 which applies the welding pressure. To the bar 10 is connected a pivoted arm 17 which carries a rod 19 connected at its other end to a similar arm and carrying a stop, which releases the contact 20 so as to allow the welding switch 21 to close when the desired pressure is reached. In order to enable the rod 14 to be adjusted when the overhang of the arms 2, 3 is varied, the crank 15 operates on a sleeve 16 in which the rod 14 is adjustable. The drive is effected through a clutch which is automatically disconnected after half a revolution or after one or more complete revolutions.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE511477X | 1938-01-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB511477A true GB511477A (en) | 1939-08-18 |
Family
ID=6547798
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1650/39A Expired GB511477A (en) | 1938-01-17 | 1939-01-17 | Improvements in and relating to electric welding machines |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB511477A (en) |
-
1939
- 1939-01-17 GB GB1650/39A patent/GB511477A/en not_active Expired
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