CH268993A - Wechselstromwecker. - Google Patents

Wechselstromwecker.

Info

Publication number
CH268993A
CH268993A CH268993DA CH268993A CH 268993 A CH268993 A CH 268993A CH 268993D A CH268993D A CH 268993DA CH 268993 A CH268993 A CH 268993A
Authority
CH
Switzerland
Prior art keywords
alarm clock
alarm
clock
Prior art date
Application number
Other languages
German (de)
English (en)
Inventor
Ag Albiswerk Zuerich
Original Assignee
Siemens Ag Albis
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 Siemens Ag Albis filed Critical Siemens Ag Albis
Publication of CH268993A publication Critical patent/CH268993A/de

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K1/00—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs
    • G10K1/06—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube
    • G10K1/062—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube electrically operated
    • G10K1/063—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube electrically operated the sounding member being a bell
    • G10K1/064—Operating or striking mechanisms therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Electromagnets (AREA)
CH268993D 1947-06-14 1947-06-14 Wechselstromwecker. CH268993A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH2502273X 1947-06-14

Publications (1)

Publication Number Publication Date
CH268993A true CH268993A (de) 1950-06-15

Family

ID=4569689

Family Applications (1)

Application Number Title Priority Date Filing Date
CH268993D CH268993A (de) 1947-06-14 1947-06-14 Wechselstromwecker.

Country Status (6)

Country Link
US (1) US2502273A (sv)
BE (1) BE483203A (sv)
CH (1) CH268993A (sv)
DE (1) DE836202C (sv)
FR (1) FR971292A (sv)
NL (1) NL71904C (sv)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2756372A (en) * 1953-01-28 1956-07-24 Teletype Corp Telegraph selector magnet device
US2863951A (en) * 1954-12-24 1958-12-09 Int Standard Electric Corp Combined telephone ringing and induction coil arrangement
BE558459A (sv) * 1956-06-19
GB2081486B (en) * 1980-07-30 1983-11-02 Philips Electronic Associated Telephone bell assembly
US7528312B1 (en) * 2007-02-21 2009-05-05 Digiovanni Stephen Drum for striking upwardly and method therefor

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1386690A (en) * 1921-08-09 Gttstavtts c
US409675A (en) * 1889-08-27 Stephen dudley field
US980613A (en) * 1909-07-31 1911-01-03 Dean Electric Co Telephone system.
US1162069A (en) * 1915-05-10 1915-11-30 Western Electric Co Telephone system.
US1484396A (en) * 1920-12-22 1924-02-19 Western Electric Co Telephone system
US1872257A (en) * 1930-12-05 1932-08-16 James D Durkee Radio alarm system
US1896196A (en) * 1931-02-05 1933-02-07 American Telephone & Telegraph Telephone substation apparatus
CH174218A (de) * 1933-04-11 1934-12-31 Siemens Ag Polarisiertes Relais.
DE654405C (de) * 1933-04-11 1937-12-22 Rupert Evan Howard Carpenter Polarisierte elektromagnetische Vorrichtung mit schwingendem Anker
US2268612A (en) * 1937-10-11 1942-01-06 Askania Werke Ag Follow-up device

Also Published As

Publication number Publication date
NL71904C (sv)
DE836202C (de) 1952-04-10
US2502273A (en) 1950-03-28
FR971292A (fr) 1951-01-15
BE483203A (sv)

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