GB1098953A - Improvements in or relating to electric circuit arrangements - Google Patents
Improvements in or relating to electric circuit arrangementsInfo
- Publication number
- GB1098953A GB1098953A GB2897265A GB2897265A GB1098953A GB 1098953 A GB1098953 A GB 1098953A GB 2897265 A GB2897265 A GB 2897265A GB 2897265 A GB2897265 A GB 2897265A GB 1098953 A GB1098953 A GB 1098953A
- Authority
- GB
- United Kingdom
- Prior art keywords
- switching means
- paths
- pair
- relay
- contacts
- 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B23/00—Alarms responsive to unspecified undesired or abnormal conditions
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Keying Circuit Devices (AREA)
Abstract
1,098,953. Protective arrangements. GENERAL ELECTRIC CO. Ltd. July 1, 1966 July 8, 1965], No. 28972/65. Heading H2K. In an arrangement having a pair of input paths 3, 4 selectively connected by changeover switching means 2 to a pair of output paths 1, 5, an auxiliary unidirectional source is connected across one pair of paths and means responsive to unidirectional current in either direction are connected across the other pair of paths to indicate an incorrect condition of the switching means. The switching means may comprise the contacts 6 . . . 9 of four bi-stable dry reed relays having operating windings 27 . . . 30. In the arrangement shown, a D.C. source is connected between earth and a resistor 10 so as to be across the output paths 1, 5. Relays 14, 15 and rectifiers 17, 18 are connected across the input paths so that with the switching means 2 correctly operated one or other relay 14, 15 is energized and closes its contacts 31 or 32 to energize an indicating lamp 35 or 36. The operated relay 14 or 15 also opens contacts 33 or 34 in series with a warning lamp 37. If the switching means are incorrectly operated, neither relay 14 or 15 responds and the warning lamp 37 is lit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2897265A GB1098953A (en) | 1965-07-08 | 1965-07-08 | Improvements in or relating to electric circuit arrangements |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2897265A GB1098953A (en) | 1965-07-08 | 1965-07-08 | Improvements in or relating to electric circuit arrangements |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1098953A true GB1098953A (en) | 1968-01-10 |
Family
ID=10284176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2897265A Expired GB1098953A (en) | 1965-07-08 | 1965-07-08 | Improvements in or relating to electric circuit arrangements |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1098953A (en) |
-
1965
- 1965-07-08 GB GB2897265A patent/GB1098953A/en not_active Expired
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