GB642512A - Improvements relating to electric light units - Google Patents
Improvements relating to electric light unitsInfo
- Publication number
- GB642512A GB642512A GB2564548A GB2564548A GB642512A GB 642512 A GB642512 A GB 642512A GB 2564548 A GB2564548 A GB 2564548A GB 2564548 A GB2564548 A GB 2564548A GB 642512 A GB642512 A GB 642512A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fitting
- electric light
- improvements relating
- light units
- globe
- 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
- 239000003245 coal Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V15/00—Protecting lighting devices from damage
- F21V15/04—Resilient mountings, e.g. shock absorbers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
642,512. Portable lamps. VICTOR PRODUCTS (WALLSEND), Ltd., and MANN, R. W. Oct. 1, 1948, No. 25645 [Classes 75(iii) and 75(iv)] In a lamp fitting suitable for use in coal mines the lamp bulb D is held between the turns of a helical spring K compressed against seatings formed inside the fitting. The bulb is enclosed by a globe E cemented to a ring G secured to the metal body A of the fitting and the ends of the spring K are seated in curved grooves between prisms formed on the inside of the globe.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2564548A GB642512A (en) | 1948-10-01 | 1948-10-01 | Improvements relating to electric light units |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2564548A GB642512A (en) | 1948-10-01 | 1948-10-01 | Improvements relating to electric light units |
Publications (1)
Publication Number | Publication Date |
---|---|
GB642512A true GB642512A (en) | 1950-09-06 |
Family
ID=10231029
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2564548A Expired GB642512A (en) | 1948-10-01 | 1948-10-01 | Improvements relating to electric light units |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB642512A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3694649A (en) * | 1970-07-22 | 1972-09-26 | Gen Electric | Lamp support device |
-
1948
- 1948-10-01 GB GB2564548A patent/GB642512A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3694649A (en) * | 1970-07-22 | 1972-09-26 | Gen Electric | Lamp support device |
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