GB601541A - Improvements relating to electrical remote indicating or repeating systems - Google Patents

Improvements relating to electrical remote indicating or repeating systems

Info

Publication number
GB601541A
GB601541A GB2574045A GB2574045A GB601541A GB 601541 A GB601541 A GB 601541A GB 2574045 A GB2574045 A GB 2574045A GB 2574045 A GB2574045 A GB 2574045A GB 601541 A GB601541 A GB 601541A
Authority
GB
United Kingdom
Prior art keywords
circuit
improvements relating
electrical remote
remote indicating
potentiometer
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
GB2574045A
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.)
Evershed and Vignoles Ltd
Original Assignee
Evershed and Vignoles Ltd
Filing date
Publication date
Application filed by Evershed and Vignoles Ltd filed Critical Evershed and Vignoles Ltd
Publication of GB601541A publication Critical patent/GB601541A/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G08SIGNALLING
    • G08BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B21/00Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

601,541. Electric control systems. EVERSHED & VIGNOLES, Ltd.., and MARCHMENT, W. T. Oct. 3, 1945, No. 25740. [Class 40 (i)] In a correspondence control system, movement of the arm f of a potentiometer k differentially varies the resistances effectively in circuit on alternate half waves of the supply d, thus introducing a D.C. component into the circuit, so that a D.C. meter a deflects in accordance with the movement of the potentiometer. Transformer b is of the constant voltage type. The resistance in circuit for one half wave only may be varied (as in Fig. 1, not shown).
GB2574045A 1945-10-03 Improvements relating to electrical remote indicating or repeating systems Expired GB601541A (en)

Publications (1)

Publication Number Publication Date
GB601541A true GB601541A (en) 1948-05-07

Family

ID=1739473

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2574045A Expired GB601541A (en) 1945-10-03 Improvements relating to electrical remote indicating or repeating systems

Country Status (1)

Country Link
GB (1) GB601541A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2597088A (en) * 1949-05-10 1952-05-20 Jean-Rene H Dutilh Multichannel telemetering device
US4565832A (en) * 1984-02-08 1986-01-21 Japan Exlan Company Limited Process for producing packing material for use in liquid chromatography

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2597088A (en) * 1949-05-10 1952-05-20 Jean-Rene H Dutilh Multichannel telemetering device
US4565832A (en) * 1984-02-08 1986-01-21 Japan Exlan Company Limited Process for producing packing material for use in liquid chromatography

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