NL58222C - Schakeling voor het op afstand besturen van arbeidsprocessen onder gebruikmaking van twee wisselstromen van onderling verschillende frequentie - Google Patents

Schakeling voor het op afstand besturen van arbeidsprocessen onder gebruikmaking van twee wisselstromen van onderling verschillende frequentie

Info

Publication number
NL58222C
NL58222C NL101655A NL101655A NL58222C NL 58222 C NL58222 C NL 58222C NL 101655 A NL101655 A NL 101655A NL 101655 A NL101655 A NL 101655A NL 58222 C NL58222 C NL 58222C
Authority
NL
Netherlands
Prior art keywords
circuit
remote control
different frequencies
alternating currents
work processes
Prior art date
Application number
NL101655A
Other languages
English (en)
Dutch (nl)
Original Assignee
Landis & Gyr Sa
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 Landis & Gyr Sa filed Critical Landis & Gyr Sa
Application granted granted Critical
Publication of NL58222C publication Critical patent/NL58222C/nl

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/12—Electric signal transmission systems in which the signal transmitted is frequency or phase of AC
    • G08C19/14—Electric signal transmission systems in which the signal transmitted is frequency or phase of AC using combination of fixed frequencies
    • G—PHYSICS
    • G08—SIGNALLING
    • G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
    • G08C19/00—Electric signal transmission systems
    • G08C19/16—Electric signal transmission systems in which transmission is by pulses
    • G08C19/22—Electric signal transmission systems in which transmission is by pulses by varying the duration of individual pulses

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Selective Calling Equipment (AREA)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Emergency Protection Circuit Devices (AREA)
NL101655A 1940-07-05 1941-06-11 Schakeling voor het op afstand besturen van arbeidsprocessen onder gebruikmaking van twee wisselstromen van onderling verschillende frequentie NL58222C (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH214265T 1940-07-05

Publications (1)

Publication Number Publication Date
NL58222C true NL58222C (nl) 1946-08-16

Family

ID=4448628

Family Applications (1)

Application Number Title Priority Date Filing Date
NL101655A NL58222C (nl) 1940-07-05 1941-06-11 Schakeling voor het op afstand besturen van arbeidsprocessen onder gebruikmaking van twee wisselstromen van onderling verschillende frequentie

Country Status (5)

Country Link
US (1) US2379631A (de)
CH (1) CH214265A (de)
FR (1) FR873031A (de)
GB (1) GB550335A (de)
NL (1) NL58222C (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2512994A (en) * 1946-03-29 1950-06-27 Airplane & Marine Instr Inc Volume control for amplifiers
US2693526A (en) * 1949-06-15 1954-11-02 Automatic Elect Lab Single channel single frequency mobile radio telephone system
US2677014A (en) * 1950-06-29 1954-04-27 Westinghouse Electric Corp Tone-shift carrier
US2921292A (en) * 1954-07-14 1960-01-12 Multi Products Co Dual channel receiver and transmitter
DE1014632B (de) * 1954-12-16 1957-08-29 Licentia Gmbh Zentralfernsteueranlage
BE547517A (de) * 1955-05-03
US2912676A (en) * 1955-06-03 1959-11-10 Rca Corp Radio alarm system
US2968746A (en) * 1957-03-13 1961-01-17 Oakton Engineering Corp Programming mechanism
CA728283A (en) * 1959-03-25 1966-02-15 N.V. Philips Gloeilampenfabrieken Signal receiver for alternating current signals
US3448442A (en) * 1965-04-30 1969-06-03 American District Telegraph Co Method and apparatus for detecting waterflow including a non-instantaneously recycling retard element
US3463327A (en) * 1967-09-25 1969-08-26 John C Lester Pendant control for overhead cranes

Also Published As

Publication number Publication date
CH214265A (de) 1941-04-15
GB550335A (en) 1943-01-04
US2379631A (en) 1945-07-03
FR873031A (fr) 1942-06-26

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