CH212946A - Device for switching over tuning means, in particular coils arranged in reel drums in heavy devices for wireless communication. - Google Patents

Device for switching over tuning means, in particular coils arranged in reel drums in heavy devices for wireless communication.

Info

Publication number
CH212946A
CH212946A CH212946DA CH212946A CH 212946 A CH212946 A CH 212946A CH 212946D A CH212946D A CH 212946DA CH 212946 A CH212946 A CH 212946A
Authority
CH
Switzerland
Prior art keywords
wireless communication
switching over
coils arranged
tuning means
reel drums
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellschaft C Lorenz
Original Assignee
Lorenz C Ag
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 Lorenz C Ag filed Critical Lorenz C Ag
Publication of CH212946A publication Critical patent/CH212946A/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/40—Driving mechanisms, i.e. for transmitting driving force to the contacts using friction, toothed, or screw-and-nut gearing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/32—Driving mechanisms, i.e. for transmitting driving force to the contacts
    • H01H3/44—Driving mechanisms, i.e. for transmitting driving force to the contacts using Geneva movement
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20396—Hand operated
    • Y10T74/20474—Rotatable rod, shaft, or post
    • Y10T74/20492—Gear
    • Y10T74/20498—Variable ratio
CH212946D 1938-08-03 1939-07-31 Device for switching over tuning means, in particular coils arranged in reel drums in heavy devices for wireless communication. CH212946A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE212946X 1938-08-03

Publications (1)

Publication Number Publication Date
CH212946A true CH212946A (en) 1940-12-31

Family

ID=5810740

Family Applications (1)

Application Number Title Priority Date Filing Date
CH212946D CH212946A (en) 1938-08-03 1939-07-31 Device for switching over tuning means, in particular coils arranged in reel drums in heavy devices for wireless communication.

Country Status (4)

Country Link
US (1) US2297389A (en)
BE (1) BE435740A (en)
CH (1) CH212946A (en)
FR (1) FR858527A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE933346C (en) * 1950-10-21 1955-09-22 Siemens Ag Variometer with movable iron core, especially for shortwave band spreading in radio equipment

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2542732A (en) * 1940-01-26 1951-02-20 Radio Electr Soc Fr Device for conversion of frequencies
US2470426A (en) * 1942-10-28 1949-05-17 Zenith Radio Corp Spread band tuning circuit
US2567860A (en) * 1946-11-18 1951-09-11 Arthur A Glass Tuning mechanism for superheterodyne radio receivers of the steptuned type
US2773988A (en) * 1952-11-26 1956-12-11 Standard Coil Prod Co Inc Frequency selector
US2989259A (en) * 1955-02-01 1961-06-20 Casco Products Corp Automatically operated radio antenna
US2973412A (en) * 1957-02-28 1961-02-28 Breeze Corp Limit control mechanism
US4042087A (en) * 1975-11-03 1977-08-16 Artur Markovich Itin Clutch control device for a machine tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE933346C (en) * 1950-10-21 1955-09-22 Siemens Ag Variometer with movable iron core, especially for shortwave band spreading in radio equipment

Also Published As

Publication number Publication date
FR858527A (en) 1940-11-27
US2297389A (en) 1942-09-29
BE435740A (en)

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