BE422752A - - Google Patents
Info
- Publication number
- BE422752A BE422752A BE422752DA BE422752A BE 422752 A BE422752 A BE 422752A BE 422752D A BE422752D A BE 422752DA BE 422752 A BE422752 A BE 422752A
- Authority
- BE
- Belgium
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
- H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
- H05B39/09—Circuit arrangements or apparatus for operating incandescent light sources in which the lamp is fed by pulses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/16—Centre bearings or other swivel connections between underframes and bolsters or bogies
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
- E21F17/18—Special adaptations of signalling or alarm devices
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Emergency Protection Circuit Devices (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1694651A GB702230A (en) | 1951-07-17 | 1951-07-17 | Improvements relating to electric lighting systems also adapted for signalling purposes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE422752A true BE422752A (pt-PT) |
Family
ID=10086510
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE512866D BE512866A (pt-PT) | 1951-07-17 | ||
| BE422752D BE422752A (pt-PT) | 1951-07-17 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE512866D BE512866A (pt-PT) | 1951-07-17 |
Country Status (3)
| Country | Link |
|---|---|
| BE (2) | BE422752A (pt-PT) |
| GB (1) | GB702230A (pt-PT) |
| NL (2) | NL46719C (pt-PT) |
-
0
- NL NL83016D patent/NL83016C/xx active
- BE BE512866D patent/BE512866A/xx unknown
- BE BE422752D patent/BE422752A/xx unknown
- NL NL46719D patent/NL46719C/xx active
-
1951
- 1951-07-17 GB GB1694651A patent/GB702230A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL46719C (pt-PT) | |
| GB702230A (en) | 1954-01-13 |
| BE512866A (pt-PT) | |
| NL83016C (pt-PT) |