GB522986A - Improvements in electrical relays - Google Patents
Improvements in electrical relaysInfo
- Publication number
- GB522986A GB522986A GB3728338A GB3728338A GB522986A GB 522986 A GB522986 A GB 522986A GB 3728338 A GB3728338 A GB 3728338A GB 3728338 A GB3728338 A GB 3728338A GB 522986 A GB522986 A GB 522986A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relay
- resistances
- battery
- condenser
- 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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/01—Shaping pulses
- H03K5/04—Shaping pulses by increasing duration; by decreasing duration
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Magnetically Actuated Valves (AREA)
- Relay Circuits (AREA)
- Sanitary Device For Flush Toilet (AREA)
Abstract
522,986. Electromagnetic relays. PRESSEL, O., and BALDWIN ELECTRO-MEDICAL, Ltd. Dec. 22, 1938,. No. 37283. [Class 38 (v)] A relay B, adapted to be operated by the momentary completion of a circuit at A, is held closed for say half a second, by the discharge of a previously charged condenser F. The condenser F . has been charged by the battery C through a high resistance D and now discharges through relay contacts G. a lower resistance E and the relay coil B. The current from the battery C through resistances D and E and contacts G is insufficient to hold the relay closed. The resistances D, E may be replaced by condensers and the switch A by a thermionic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3728338A GB522986A (en) | 1938-12-22 | 1938-12-22 | Improvements in electrical relays |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3728338A GB522986A (en) | 1938-12-22 | 1938-12-22 | Improvements in electrical relays |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB522986A true GB522986A (en) | 1940-07-02 |
Family
ID=10395214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3728338A Expired GB522986A (en) | 1938-12-22 | 1938-12-22 | Improvements in electrical relays |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB522986A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2761998A (en) * | 1952-08-14 | 1956-09-04 | Burroughs Corp | Pulse lengthening circuit |
| US3030523A (en) * | 1958-07-24 | 1962-04-17 | Westinghouse Electric Corp | Condition responsive impedance switching arrangement utilizing hyperconductive diode |
| US3206651A (en) * | 1961-11-30 | 1965-09-14 | Honeywell Inc | Circuit controlling flow of current |
-
1938
- 1938-12-22 GB GB3728338A patent/GB522986A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2761998A (en) * | 1952-08-14 | 1956-09-04 | Burroughs Corp | Pulse lengthening circuit |
| US3030523A (en) * | 1958-07-24 | 1962-04-17 | Westinghouse Electric Corp | Condition responsive impedance switching arrangement utilizing hyperconductive diode |
| US3206651A (en) * | 1961-11-30 | 1965-09-14 | Honeywell Inc | Circuit controlling flow of current |
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