GB849009A - Improvements in or relating to electronic timing devices - Google Patents
Improvements in or relating to electronic timing devicesInfo
- Publication number
- GB849009A GB849009A GB21543/57A GB2154357A GB849009A GB 849009 A GB849009 A GB 849009A GB 21543/57 A GB21543/57 A GB 21543/57A GB 2154357 A GB2154357 A GB 2154357A GB 849009 A GB849009 A GB 849009A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relay
- valve
- resistor
- switch
- july
- 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
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/28—Modifications for introducing a time delay before switching
- H03K17/288—Modifications for introducing a time delay before switching in tube switches
Landscapes
- Electronic Switches (AREA)
- Electrically Driven Valve-Operating Means (AREA)
- Particle Accelerators (AREA)
Abstract
849,009. Valve 'relay circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. July 8, 1957 [July 11, 1956], No. 21543/57. Class 40(6). In a timing circuit, a normally conducting valve energizes a relay 10 having contacts 7 (drawn in the energized position) which maintain the grid at cathode potential until the relay is released by reducing the anode current, when capacitor C5, charged from the supply voltage through resistor R4, is connected across the gridcathode circuit to hold the valve cut-off for a time determined by the rate of reversed charge of C5 through resistor R12. The time period (0À69 R12 C5) is adjustable by variation of R12 and is initiated by momentary closing of switch 16 causing short circuit of the screen voltage. The resistor 15 should be equal to the combined D.C. resistance of the valve and the relay 10. Fig. 2 shows another method of initiating the period. Capacitor 17 is discharged by operation of switch 16 which, on being restored to the position shown, causes release of the relay 10 by momentary reduction of screen voltage. Switch 16 may be replaced by a rotary switching device.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL338158X | 1956-07-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB849009A true GB849009A (en) | 1960-09-21 |
Family
ID=19784611
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB21543/57A Expired GB849009A (en) | 1956-07-11 | 1957-07-08 | Improvements in or relating to electronic timing devices |
Country Status (7)
Country | Link |
---|---|
US (1) | US2965815A (en) |
BE (1) | BE559128A (en) |
CH (1) | CH338158A (en) |
DE (1) | DE1049913B (en) |
FR (1) | FR1178338A (en) |
GB (1) | GB849009A (en) |
NL (2) | NL208852A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1136374B (en) * | 1961-01-04 | 1962-09-13 | Elektro App Werke J W Stalin V | Electronic circuit arrangement for delayed transmission of a signal |
US3360694A (en) * | 1962-05-23 | 1967-12-26 | Arthur K Littwin | Electrical control means |
US3325694A (en) * | 1963-05-03 | 1967-06-13 | Air Reduction | Calibrating circuit for time delay apparatus |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2559508A (en) * | 1949-08-18 | 1951-07-03 | Standard Oil Dev Co | Time-delay relay circuits |
NL73109C (en) * | 1950-08-01 | |||
US2818532A (en) * | 1955-11-01 | 1957-12-31 | Rca Corp | Single action timing circuit |
DE1048627B (en) * | 1956-05-19 |
-
0
- BE BE559128D patent/BE559128A/xx unknown
- DE DENDAT1049913D patent/DE1049913B/en active Pending
- NL NL100430D patent/NL100430C/xx active
- NL NL208852D patent/NL208852A/xx unknown
-
1957
- 1957-07-05 US US670172A patent/US2965815A/en not_active Expired - Lifetime
- 1957-07-08 GB GB21543/57A patent/GB849009A/en not_active Expired
- 1957-07-09 CH CH338158D patent/CH338158A/en unknown
- 1957-07-09 FR FR1178338D patent/FR1178338A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2965815A (en) | 1960-12-20 |
FR1178338A (en) | 1959-05-06 |
CH338158A (en) | 1959-04-30 |
NL208852A (en) | |
NL100430C (en) | |
DE1049913B (en) | 1959-02-05 |
BE559128A (en) |
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