DE111802C - - Google Patents

Info

Publication number
DE111802C
DE111802C DENDAT111802D DE111802DA DE111802C DE 111802 C DE111802 C DE 111802C DE NDAT111802 D DENDAT111802 D DE NDAT111802D DE 111802D A DE111802D A DE 111802DA DE 111802 C DE111802 C DE 111802C
Authority
DE
Germany
Prior art keywords
contact
clockwork
contact pieces
rooms
bells
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.)
Active
Application number
DENDAT111802D
Other languages
German (de)
English (en)
Publication of DE111802C publication Critical patent/DE111802C/de
Active legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G04HOROLOGY
    • G04CELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C21/00Producing acoustic time signals by electrical means
    • G04C21/16Producing acoustic time signals by electrical means producing the signals at adjustable fixed times
    • G04C21/30Producing acoustic time signals by electrical means producing the signals at adjustable fixed times with provision for a number of operations at different times, e.g. ringing the bells in a school
    • G04C21/32Producing acoustic time signals by electrical means producing the signals at adjustable fixed times with provision for a number of operations at different times, e.g. ringing the bells in a school giving indications at a number of places each at a different time, e.g. system of alarms in a hotel

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
DENDAT111802D Active DE111802C (esLanguage)

Publications (1)

Publication Number Publication Date
DE111802C true DE111802C (esLanguage)

Family

ID=381514

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT111802D Active DE111802C (esLanguage)

Country Status (1)

Country Link
DE (1) DE111802C (esLanguage)

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