AT137408B - Conversion device for musical instruments. - Google Patents

Conversion device for musical instruments.

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Publication number
AT137408B
AT137408B AT137408DA AT137408B AT 137408 B AT137408 B AT 137408B AT 137408D A AT137408D A AT 137408DA AT 137408 B AT137408 B AT 137408B
Authority
AT
Austria
Prior art keywords
conversion device
strings
musical instruments
vibrations
rods
Prior art date
Application number
Other languages
German (de)
Inventor
Rupert Felix Sellner
Original Assignee
Rupert Felix Sellner
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 Rupert Felix Sellner filed Critical Rupert Felix Sellner
Application granted granted Critical
Publication of AT137408B publication Critical patent/AT137408B/en

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  • Electrophonic Musical Instruments (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



    Umwandlungs vorrichtung für   Musikinstrumente. 



   Die Erfindung betrifft eine Umwandlungsvorrichtung für Musikinstrumente, bei welcher die Schwingungen von Saiten in elektrische und diese wieder in akustische Schwingungen umgewandelt werden. 



   Fig. 1 stellt einen Elektromagnet dar, welcher aus einzelnen Eisenstäben besteht, die zu einem Bündel zusammengefasst sind. Die einzelnen Eisenstäbe tragen Spulen und kommen, wie in Fig. 1 ersichtlich ist, jeder über je eine Saite zu liegen. Die Magnetisierung erfolgt durch eine gemeinsame Spule mittels Gleichstrom. 



   Werden nun sechs bis acht solcher Elektromagnete in ein Klavier eingebaut, so kann man jedes normale Klavier in ein elektrisches Musikinstrument umwandeln, u. zw. werden bei jedem Ton die äusseren beiden Saiten etwas höher gespannt, damit der Hammer sie nicht erreichen kann. Es sind aber auch über den höher gespannten Saiten (Fig. 5) Magnetstäbe angebracht, denn man braucht diese zur Wiedergabe der Orgel. Ferner wird eine der beiden höheren Saiten durch einen starken Wechselstrommagneten in Schwingung versetzt, was mit Hilfe einer zweiten Klaviatur, welche bloss die entsprechenden Kontakte zu den einzelnen Saiten zu schliessen hat, bewerkstelligt wird. Fig. 3 zeigt den Querschnitt der Spule mit der hinteren Aufhängebrille. Die einzelnen Stäbe haben in der Spule etwas Luft, so dass man die Einstellung zu den Saiten am einfachsten regelt.

   Sind sämtliche Stäbe eingestellt, so fixiert man diese mittels der Schraube 6. 



   Durch Betätigen der Tasten gehen die Dämpferklappen in der Richtung des Pfeiles (Fig. 3) in die Höhe und die darauf angebrachten Kontakte 8 schliessen die jeweiligen Stromkreise, welche den Saiten zugeordnet sind, zur gezeichneten   Verstärker-und Lautsprecher-   anlage 9 und 10. 



   Der Resonanzboden des Klaviers wird natürlich gedämpft. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



    Conversion device for musical instruments.



   The invention relates to a conversion device for musical instruments in which the vibrations of strings are converted into electrical vibrations and these are converted back into acoustic vibrations.



   Fig. 1 shows an electromagnet which consists of individual iron bars which are combined to form a bundle. The individual iron bars carry coils and, as can be seen in FIG. 1, each come to lie over one string each. The magnetization is done by a common coil using direct current.



   If six to eight such electromagnets are built into a piano, every normal piano can be converted into an electric musical instrument, and the like. between the two outer strings are stretched a little higher with each note so that the hammer cannot reach them. But there are also magnetic bars above the strings that are stretched higher (Fig. 5), because you need them to play the organ. Furthermore, one of the two higher strings is set into vibration by a strong alternating current magnet, which is done with the help of a second keyboard, which only has to make the corresponding contacts to the individual strings. Fig. 3 shows the cross section of the spool with the rear suspension goggle. The individual bars have a little air in the coil, so that the adjustment to the strings is easiest.

   Once all the rods have been adjusted, they are fixed by means of the screw 6.



   When the buttons are actuated, the damper flaps rise in the direction of the arrow (FIG. 3) and the contacts 8 attached to them close the respective circuits which are assigned to the strings to the illustrated amplifier and loudspeaker system 9 and 10.



   The piano soundboard is naturally muted.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENT-ANSPRUCH : Umwandlungsvorrichtung für Musikinstrumente, bei welcher die Schwingungen von Saiten in elektrische und diese wieder in akustische Schwingungen umgewandelt werden, dadurch gekennzeichnet, dass die Umwandlungsvorrichtung aus je einem Bündel von Eisenstäben besteht, die durch eine gemeinsame Spule magnetisiert werden, wobei die einzelnen Stäbe verstellbar sind, um die an den Enden der Stäbe vorgesehenen Spulen den Saiten nähern oder entfernen zu können. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Conversion device for musical instruments, in which the vibrations of strings are converted into electrical vibrations and these are converted back into acoustic vibrations, characterized in that the conversion device consists of a bundle of iron rods which are magnetized by a common coil, the individual rods being adjustable, in order to be able to move the coils provided at the ends of the rods closer to or away from the strings. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT137408D 1932-11-25 1932-11-25 Conversion device for musical instruments. AT137408B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT137408T 1932-11-25

Publications (1)

Publication Number Publication Date
AT137408B true AT137408B (en) 1934-05-11

Family

ID=3639691

Family Applications (1)

Application Number Title Priority Date Filing Date
AT137408D AT137408B (en) 1932-11-25 1932-11-25 Conversion device for musical instruments.

Country Status (1)

Country Link
AT (1) AT137408B (en)

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