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.)
G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
G08B5/00—Visible signalling systems, e.g. visible personal calling systems or remote indication of seats occupied
G08B5/22—Visible signalling systems, e.g. visible personal calling systems or remote indication of seats occupied using electric transmission; using electromagnetic transmission
Landscapes
Physics & Mathematics
(AREA)
Electromagnetism
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General Physics & Mathematics
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Reciprocating, Oscillating Or Vibrating Motors
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Synchronmotor mit einem rotierenden Kraftfeld, das mit Hilfe einer rotierenden Kontakt-einrichtung des (fernen) Taktgebers gesteuert wird, insbesondere fuer Telegraphenanlagen
Einrichtung zum Synchronisieren umlaufender Verteiler in Sende- und Empfangsstationen, zwischen denen mehrere Messgroessen mittels Stromstoesse uebertragen werden, deren Haeufigkeit der fernzumessenden Groesse entspricht