GB620531A - Improvements relating to holders for electric lamps - Google Patents
Improvements relating to holders for electric lampsInfo
- Publication number
- GB620531A GB620531A GB181047A GB181047A GB620531A GB 620531 A GB620531 A GB 620531A GB 181047 A GB181047 A GB 181047A GB 181047 A GB181047 A GB 181047A GB 620531 A GB620531 A GB 620531A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lamp
- holders
- engages
- flange
- spring
- 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
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R33/00—Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof
- H01R33/05—Two-pole devices
- H01R33/46—Two-pole devices for bayonet type base
Landscapes
- Connecting Device With Holders (AREA)
Abstract
620,531. Lamp-holders. AIRSPEED, Ltd., and BROOKESMITH, F. Jan. 20, 1947, No. 1810. [Class 38 (i)] The screwed socket b of a lamp-holder is movable axially to test the lamp to a degree limited by a pin-and-slot connection d, e, it being normally urged outwardly by a spring h, to a position wherein a flange l engages a contact strip n to complete the normal lamp circuit, the other connection being through a spring- pressed centre contact g. If the socket b is depressed, a flange p thereon engages a strip o and completes the lamp-testing circuit, the main circuit being broken at contacts l, n. The strips o, n, are carried in grooves in an insulating member c, which is externally threaded to receive a cover w, and are connected to metal inserts s, t, in the member c.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB181047A GB620531A (en) | 1947-01-20 | 1947-01-20 | Improvements relating to holders for electric lamps |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB181047A GB620531A (en) | 1947-01-20 | 1947-01-20 | Improvements relating to holders for electric lamps |
Publications (1)
Publication Number | Publication Date |
---|---|
GB620531A true GB620531A (en) | 1949-03-25 |
Family
ID=9728418
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB181047A Expired GB620531A (en) | 1947-01-20 | 1947-01-20 | Improvements relating to holders for electric lamps |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB620531A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2780801A (en) * | 1953-12-07 | 1957-02-05 | Westinghouse Electric Corp | Indicating light and test circuit |
-
1947
- 1947-01-20 GB GB181047A patent/GB620531A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2780801A (en) * | 1953-12-07 | 1957-02-05 | Westinghouse Electric Corp | Indicating light and test circuit |
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