GB518187A - Automatic control systems for arc lamps - Google Patents
Automatic control systems for arc lampsInfo
- Publication number
- GB518187A GB518187A GB2426538A GB2426538A GB518187A GB 518187 A GB518187 A GB 518187A GB 2426538 A GB2426538 A GB 2426538A GB 2426538 A GB2426538 A GB 2426538A GB 518187 A GB518187 A GB 518187A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resistance
- arc
- arcs
- motors
- resistances
- 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
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B31/00—Electric arc lamps
- H05B31/0081—Controlling of arc lamps
Landscapes
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
518,187. Automatic control systems. COATES, F. C. Aug. 17, 1938, No. 24265. [Class 38 (iv] Arcs.-In a control arrangement for multi-arc lamps two arcs, A, B, are arranged in series with and separated by a ballast resistance R across mains L1, L2, resistances AR and BR being connected respectively in parallel with arc A and resistance R and with resistance R and arc B and electrode feeding motors A8, B9 being connected by contacts 24, 31 between predetermined, points on the resistances AR, BR and the end of resistance R connected to the associated arc. The motors A8 B, are then energised on variation of the voltage across arc A or B and operate to move the electrodes together or apart until the arc voltage is restored to the value set by the associated contact 24 or 31. Resistances AR, BR are arranged to pass a current which is high compared to the current required to operate the motors. The motor fields A9, B, are energised in series from the mains L1, L2, If the electrodes A1, A. or B1, B. become too short further movement of the electrode carrier A5 or B, is arranged to push bar 41 downwards to open the circuits of the feeding motors A8, B,. These circuits may also be broken by the polarised relay 43 if the apparatus is connected through the plug 49 with incorrect polarity. If more than two arcs are to be controlled the arcs A, B, C, Fig. 3, are' connected across the mains L1, L2 in series with ballast resistance R and a long resistance AR, BR, CR or several equivalent short resistances are arranged in parallel., The feed. motors A8, B8, C, are connected between the arcs and points on the resistance at suitable potentials as shown. The motor fields A9, B9, C9 are supplied in series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2426538A GB518187A (en) | 1938-08-17 | 1938-08-17 | Automatic control systems for arc lamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2426538A GB518187A (en) | 1938-08-17 | 1938-08-17 | Automatic control systems for arc lamps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB518187A true GB518187A (en) | 1940-02-20 |
Family
ID=10208994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2426538A Expired GB518187A (en) | 1938-08-17 | 1938-08-17 | Automatic control systems for arc lamps |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB518187A (en) |
-
1938
- 1938-08-17 GB GB2426538A patent/GB518187A/en not_active Expired
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