GB528132A - Electric relay or switching devices for controlling flashing and other intermittent signals - Google Patents

Electric relay or switching devices for controlling flashing and other intermittent signals

Info

Publication number
GB528132A
GB528132A GB1268939A GB1268939A GB528132A GB 528132 A GB528132 A GB 528132A GB 1268939 A GB1268939 A GB 1268939A GB 1268939 A GB1268939 A GB 1268939A GB 528132 A GB528132 A GB 528132A
Authority
GB
United Kingdom
Prior art keywords
relay
relays
contacts
intermittent signals
switching devices
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
Application number
GB1268939A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to GB1268939A priority Critical patent/GB528132A/en
Publication of GB528132A publication Critical patent/GB528132A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
    • H05B39/09—Circuit arrangements or apparatus for operating incandescent light sources in which the lamp is fed by pulses

Landscapes

  • Relay Circuits (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

528,132. Electromagnetic interrupters. STERN, W. April 27, 1939, No. 12689. [Class 38 (v)] A device for controlling flashing or other intermittent signals comprises a relay 7 which controls the duration of the cycle and a relay 13 which determines the length of the " on " periods of the cycles. Both relays have condensers 8 or 14 and fixed and adjustable resistors 9, 10, or 15, 16 in parallel with them, so that after the coil 7 or 13 has been disconnected from its source of supply, the condenser keeps it energized for an adjustable time. This time is greater in the case of the relay 7 than in the case of the relay 13. On connecting the lines 1, 2 to a source of supply, the relays are energized through contacts 6, 12 respectively. The.relay 13 closes at 18 the signalling circuit 3, 4. The relay 7 causes the contacts 6, 12 to open so disconnecting the relays from the lines 1, 2 but the condensers maintain their energization, until the contact 18 is released to break the signalling circuit and a little later the contacts 6, 12 are released to cause the whole cycle to begin again.
GB1268939A 1939-04-27 1939-04-27 Electric relay or switching devices for controlling flashing and other intermittent signals Expired GB528132A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1268939A GB528132A (en) 1939-04-27 1939-04-27 Electric relay or switching devices for controlling flashing and other intermittent signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1268939A GB528132A (en) 1939-04-27 1939-04-27 Electric relay or switching devices for controlling flashing and other intermittent signals

Publications (1)

Publication Number Publication Date
GB528132A true GB528132A (en) 1940-10-23

Family

ID=10009320

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1268939A Expired GB528132A (en) 1939-04-27 1939-04-27 Electric relay or switching devices for controlling flashing and other intermittent signals

Country Status (1)

Country Link
GB (1) GB528132A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2447037A (en) * 1944-02-03 1948-08-17 Tung Sol Lamp Works Inc Signal system
US2499805A (en) * 1946-04-22 1950-03-07 American Brake Shoe Co Control apparatus
US2583792A (en) * 1948-05-22 1952-01-29 Lloyd E Nelson Timer circuit
US2600317A (en) * 1950-03-18 1952-06-10 Westinghouse Electric Corp Stabilized control circuit
US2709149A (en) * 1950-01-26 1955-05-24 Russell P Dunmire Process for producing vitamin compositions
US2892105A (en) * 1956-04-10 1959-06-23 Hughes Aircraft Co Free-running relay multivibrator

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2447037A (en) * 1944-02-03 1948-08-17 Tung Sol Lamp Works Inc Signal system
US2499805A (en) * 1946-04-22 1950-03-07 American Brake Shoe Co Control apparatus
US2583792A (en) * 1948-05-22 1952-01-29 Lloyd E Nelson Timer circuit
US2709149A (en) * 1950-01-26 1955-05-24 Russell P Dunmire Process for producing vitamin compositions
US2600317A (en) * 1950-03-18 1952-06-10 Westinghouse Electric Corp Stabilized control circuit
US2892105A (en) * 1956-04-10 1959-06-23 Hughes Aircraft Co Free-running relay multivibrator

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