GB418128A - Improvements in electric arc lamps - Google Patents
Improvements in electric arc lampsInfo
- Publication number
- GB418128A GB418128A GB20257/34A GB2025734A GB418128A GB 418128 A GB418128 A GB 418128A GB 20257/34 A GB20257/34 A GB 20257/34A GB 2025734 A GB2025734 A GB 2025734A GB 418128 A GB418128 A GB 418128A
- Authority
- GB
- United Kingdom
- Prior art keywords
- arc
- mercury
- gas
- per cent
- nitrogen
- 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
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/02—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles characterised by the form of the current used in the control circuit
- B60L15/04—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles characterised by the form of the current used in the control circuit using dc
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/12—Selection of substances for gas fillings; Specified operating pressure or temperature
- H01J61/18—Selection of substances for gas fillings; Specified operating pressure or temperature having a metallic vapour as the principal constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2200/00—Type of vehicles
- B60L2200/26—Rail vehicles
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
418,128. Arc lamps; discharge lamps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent-Treuhand-Ges. f³r Elektrische Gliihlampen ; 11, Ehrenbergstrasse, Berlin.) July 10, 1934, No. 20257. Convention date, Aug. 24, 1933. [Class 39 (i).] In an arc lamp in which the arc is enclosed in a gas-filled chamber the filling comprises hydrogen and cadmium vapour with or without nitrogen, carbon monoxide, hydrocarbons and rare gases. The gas may be 25 per cent hydrogen and 75 per cent nitrogen, the pressure at room temperature being 20 mm. of mercury. A small proportion of mercury may be added to the cadmium. The electrodes are of refractory material such as carbon, carbides, borides or nitrides, or refracting metal, with or without theria.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE418128X | 1933-08-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB418128A true GB418128A (en) | 1934-10-18 |
Family
ID=6448808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20257/34A Expired GB418128A (en) | 1933-08-24 | 1934-07-10 | Improvements in electric arc lamps |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR418128A (en) |
| GB (1) | GB418128A (en) |
-
1910
- 1910-07-11 FR FR418128A patent/FR418128A/en not_active Expired
-
1934
- 1934-07-10 GB GB20257/34A patent/GB418128A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR418128A (en) | 1910-12-01 |
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