GB535083A - Improvements in or relating to electric switches and indicators therefor - Google Patents
Improvements in or relating to electric switches and indicators thereforInfo
- Publication number
- GB535083A GB535083A GB2846639A GB2846639A GB535083A GB 535083 A GB535083 A GB 535083A GB 2846639 A GB2846639 A GB 2846639A GB 2846639 A GB2846639 A GB 2846639A GB 535083 A GB535083 A GB 535083A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pole
- switch
- transformer
- electric switches
- pilot lamp
- 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
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/46—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts
Landscapes
- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
535,083. Electric switches. SULLAM, S. D. Oct. 23, 1939, No. 28466. [Class 38 (v)] A switch, e.g. of the domestic type, is fitted with a step-down transformer and low-voltage pilot lamp in such a way that the transformer and pilot lamp are energized when the switch is open, but are cut out when the switch is closed. Fig. 2 shows a plug switch casing 1 in which one side of the primary of the transformer 4 is connected through one pole of the mains to one of the plug sockets 3, and the other side is connected to one pole of a double pole switch 2 the other pole of which is connected to the other plug socket 3, and the arm of which is connected to the other pole of the mains. The pilot lamp 5 is in the transformer secondary circuit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2846639A GB535083A (en) | 1939-10-23 | 1939-10-23 | Improvements in or relating to electric switches and indicators therefor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2846639A GB535083A (en) | 1939-10-23 | 1939-10-23 | Improvements in or relating to electric switches and indicators therefor |
Publications (1)
Publication Number | Publication Date |
---|---|
GB535083A true GB535083A (en) | 1941-03-27 |
Family
ID=10276072
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2846639A Expired GB535083A (en) | 1939-10-23 | 1939-10-23 | Improvements in or relating to electric switches and indicators therefor |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB535083A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3846777A (en) * | 1973-03-13 | 1974-11-05 | Cutler Hammer Inc | Warning light for electrical switches |
-
1939
- 1939-10-23 GB GB2846639A patent/GB535083A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3846777A (en) * | 1973-03-13 | 1974-11-05 | Cutler Hammer Inc | Warning light for electrical switches |
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