GB484915A - Means for automatically controlling electric welding operations - Google Patents
Means for automatically controlling electric welding operationsInfo
- Publication number
- GB484915A GB484915A GB3073436A GB3073436A GB484915A GB 484915 A GB484915 A GB 484915A GB 3073436 A GB3073436 A GB 3073436A GB 3073436 A GB3073436 A GB 3073436A GB 484915 A GB484915 A GB 484915A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pendulum
- electromagnet
- contacts
- switch
- closed
- 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
- B23K11/24—Electric supply or control circuits therefor
Abstract
484,915. Electromagnetic switches momentary contact switches. LUCAS, Ltd., J., MILLER, J. L., and MAY, E. Nov. 11, 1936, No. 30734. [Class 38 (v)] A switch for the timed operation of welding circuits comprises a pendulum a pivoted at its upper end and carrying an adjustable weight b. The pendulum is held in the position shown by an electromagnet c and holds open a switch k, in the circuit of an electromagnet in controlling contacts n, o in the welding circuit. The electromagnet c is connected to alternating current mains p through a rectifier q and two pairs of parallel contacts d, e and f, g which are adapted to be closed alternately by a spring toggle mechanism i, j, h. To effect a weld, the operating lever i is moved across to open contacts d, e and almost immediately close contacts f, g. The momentary de-energization of the electromagnet c releases the pendulum which allows switch k, l to close and cause the welding circuit to be closed at n, o and remain closed until the pendulum returns and opens switch k, l. The pendulum is then held by the electromagnet c which is now energized through contacts f, g. Thus operation of lever i causes the welding circuit to be closed for a period solely dependent on the period of the pendulum a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3073436A GB484915A (en) | 1936-11-11 | 1936-11-11 | Means for automatically controlling electric welding operations |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3073436A GB484915A (en) | 1936-11-11 | 1936-11-11 | Means for automatically controlling electric welding operations |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB484915A true GB484915A (en) | 1938-05-11 |
Family
ID=10312299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3073436A Expired GB484915A (en) | 1936-11-11 | 1936-11-11 | Means for automatically controlling electric welding operations |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB484915A (en) |
-
1936
- 1936-11-11 GB GB3073436A patent/GB484915A/en not_active Expired
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