GB557388A - Electric control systems employing selectively-operated electro-magnetic devices - Google Patents

Electric control systems employing selectively-operated electro-magnetic devices

Info

Publication number
GB557388A
GB557388A GB663442A GB663442A GB557388A GB 557388 A GB557388 A GB 557388A GB 663442 A GB663442 A GB 663442A GB 663442 A GB663442 A GB 663442A GB 557388 A GB557388 A GB 557388A
Authority
GB
United Kingdom
Prior art keywords
relay
current
rectifier
electric control
control systems
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
GB663442A
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.)
REDIFFUSION Ltd
Original Assignee
REDIFFUSION Ltd
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 REDIFFUSION Ltd filed Critical REDIFFUSION Ltd
Priority to GB663442A priority Critical patent/GB557388A/en
Publication of GB557388A publication Critical patent/GB557388A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/30—Electric signal transmission systems in which transmission is by selection of one or more conductors or channels from a plurality of conductors or channels
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/18—Control by auxiliary power

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Axle Suspensions And Sidecars For Cycles (AREA)

Abstract

557,388. Electric selective signalling. REDIFFUSION, Ltd., and CLIFTON; J. B. M. May 15, 1942, No. 6634. [Class 40 (i)] In an arrangement for the operation of one or both of a pair of relays 2, 12, which may control the condition of a radio transmitter, the relay 2 is shunted by a rectifier 11 so that it is energized by current in one direction in the line circuit while the relay 12 is associated with a bridge of rectifiers 7 .. 10 so that it is energized by current in either direction, and two switches 3, 4 (which may be combined in a single switch) are provided at the control point for connecting alternating current from a transformer 1 to the line circuit and for connecting in alternatively two oppositely-directed rectifiers 5, 6 or for reversing the connections of a single rectifier. The rectifier bridge may be in parallel with the relay 2 instead of in series as shown, and further relays with associated rectifiers may be provided. According to the Provisional Specification, the rectifier bridge 7 .. 10 may be dispensed with and the relay 12 may be slugged, for example, by a dashpot to prevent its release when the direction of current is reversed.
GB663442A 1942-05-15 1942-05-15 Electric control systems employing selectively-operated electro-magnetic devices Expired GB557388A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB663442A GB557388A (en) 1942-05-15 1942-05-15 Electric control systems employing selectively-operated electro-magnetic devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB663442A GB557388A (en) 1942-05-15 1942-05-15 Electric control systems employing selectively-operated electro-magnetic devices

Publications (1)

Publication Number Publication Date
GB557388A true GB557388A (en) 1943-11-18

Family

ID=9818026

Family Applications (1)

Application Number Title Priority Date Filing Date
GB663442A Expired GB557388A (en) 1942-05-15 1942-05-15 Electric control systems employing selectively-operated electro-magnetic devices

Country Status (1)

Country Link
GB (1) GB557388A (en)

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