DE102997C - - Google Patents

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Publication number
DE102997C
DE102997C DENDAT102997D DE102997DA DE102997C DE 102997 C DE102997 C DE 102997C DE NDAT102997 D DENDAT102997 D DE NDAT102997D DE 102997D A DE102997D A DE 102997DA DE 102997 C DE102997 C DE 102997C
Authority
DE
Germany
Prior art keywords
strings
microphone
vibrations
telephone
electrical
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
DENDAT102997D
Other languages
German (de)
Publication of DE102997C publication Critical patent/DE102997C/de
Active legal-status Critical Current

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Classifications

    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10HELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H3/00Instruments in which the tones are generated by electromechanical means
    • G10H3/12Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument
    • G10H3/24Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument incorporating feedback means, e.g. acoustic
    • G10H3/26Instruments in which the tones are generated by electromechanical means using mechanical resonant generators, e.g. strings or percussive instruments, the tones of which are picked up by electromechanical transducers, the electrical signals being further manipulated or amplified and subsequently converted to sound by a loudspeaker or equivalent instrument incorporating feedback means, e.g. acoustic using electric feedback
    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10HELECTROPHONIC MUSICAL INSTRUMENTS; INSTRUMENTS IN WHICH THE TONES ARE GENERATED BY ELECTROMECHANICAL MEANS OR ELECTRONIC GENERATORS, OR IN WHICH THE TONES ARE SYNTHESISED FROM A DATA STORE
    • G10H2230/00General physical, ergonomic or hardware implementation of electrophonic musical tools or instruments, e.g. shape or architecture
    • G10H2230/045Special instrument [spint], i.e. mimicking the ergonomy, shape, sound or other characteristic of a specific acoustic musical instrument category
    • G10H2230/075Spint stringed, i.e. mimicking stringed instrument features, electrophonic aspects of acoustic stringed musical instruments without keyboard; MIDI-like control therefor
    • G10H2230/095Spint zither, i.e. mimicking any neckless stringed instrument in which the strings do not extend beyond the sounding board

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Percussion Or Vibration Massage (AREA)

Description

KAISERLICHESIMPERIAL

PATENTAMT.PATENT OFFICE.

PATENTSCHRIFTPATENT LETTERING

KLASSE 51: Müsik-Instrümente.CLASS 51: Musical instruments.

Patentirt im Deutschen Reiche vom i. Dezember 1897 ab.Patented in the German Empire from i. December 1897.

Um die Saiten eines Klaviers durch Elektromagnete in dauernde Schwingungen zu versetzen, ist es bekanntlich nothwendig, den elektrischen Strom synchron den Schwingungen der betreffenden Töne zu unterbrechen. In der durch die Patentschriften Nr. 51668, 52102 und 57541 bekannt gewordenen Mechanik wird allerdings durch Einschaltung eines Mikrophons in den Hauptstromkreis der elektrische Strom in gewünschter Weise geregelt, doch sollen sich im Mikrophon bei den nothwendig starken Strömen störende Geräusche einstellen, die durch den Resonanzboden noch erheblich verstärkt werden.In order to make the strings of a piano vibrate continuously using electromagnets, it is well known that the electric current must be interrupted synchronously with the vibrations of the notes concerned. In the mechanics made known by patent specifications No. 51668, 52102 and 57541 However, by switching a microphone into the main circuit, it becomes the electrical one Current regulated in the desired way, but should be in the microphone with the necessary High currents adjust disturbing noises, which are still considerably due to the soundboard be reinforced.

Nach vorliegender Erfindung soll nun eine vollkommene (den Eigenschwingungen der Töne gleichfalls synchrone) Unterbrechung des elektrischen tonerzeugenden Stromes dadurch erzielt werden, dafs zunächst die Schwingungen der Saiten S bezw. des Resonanzbodens R auf ein Telephon T übertragen werden. Dies geschieht mittelst zweier Elemente E und des in den Nebenstromkreis eingeschalteten und auf dem Resonanzboden befestigten Mikrophons M. Das Mikrophon besteht aus den mit einander isolirt verbundenen Kohlenbalken M K1 und M K11, zwischen denen der bewegliche Kohlenstift KS vibrirt (Fig. 3).According to the present invention, a complete (also synchronous to the natural vibrations of the tones) interruption of the electrical tone-generating current is to be achieved by first causing the vibrations of the strings S respectively. of the soundboard R can be transmitted to a telephone T. This is done by means of two elements E and the microphone M , which is connected to the secondary circuit and fastened to the soundboard . The microphone consists of the carbon beams MK 1 and MK 11 connected to one another in an insulated manner, between which the movable carbon pin KS vibrates (Fig. 3).

Auf diese Weise erhält man auf der Platte des Telephons Schwingungen von stärkerer Amplitude. Die Unterbrechung des Hauptstromes wird dadurch bewirkt, dafs die auf der schwingenden Platte des Telephons (oder auf einem diese ersetzenden Eisenblechstreifen) befestigte Kohle K1 gegen die ihr gegenüberstehende, durch eine Stellschraube in der gehörigen Entfernung festgespannte Kohle Kn schwingt.In this way, vibrations of greater amplitude are obtained on the telephone plate. The main flow is interrupted by the fact that the coal K 1 fastened on the vibrating plate of the telephone (or on a strip of sheet iron to replace it) swings against the coal K n opposite it, which is clamped at the appropriate distance by an adjusting screw.

Der den Ton erzeugende Strom geht von dem +Pol des Accumulators A zu den Elektromagneten El, von dort zu den beiden Kurbelumschaltern C1 und Cu und weiter über K1 und Ku zum —Pol zurück.The current producing the tone goes from the + pole of the accumulator A to the electromagnets El, from there to the two crank switches C 1 and C u and further via K 1 and K u to the - pole.

Auf dem Dämpfer D der Saiten, Fig. 2, ist ein Metallcontact Uu befestigt, welcher mit dem Elektromagneten E verbunden ist; ihm gegenüber befindet sich gleichfalls ein mit dem anderen Pol bezw. dem Kurbelumschalter C1 verbundener Contact U1. Durch Niederdrücken der Taste wird bekanntlich der Dämpfer von der Saite entfernt und dadurch zugleich der Stromschlufs zwischen U1 und ZJH bewirkt.On the damper D of the strings, FIG. 2, a metal contact U u is attached, which is connected to the electromagnet E ; opposite him is also a BEZW with the other pole. the crank switches C 1 connected Contact U. 1 As is well known, pressing the button removes the damper from the string and thus at the same time causes the electrical circuit between U 1 and ZJH.

Um die Funkenbildung zu vermeiden, befindet sich zwischen K1 und K11 ein Nebenschlufs durch die Widerstandsrolle W. Die elektrische Energie dieses Nebenschlusses kann auch zur mikrophonischen Uebertragung an Stelle der Elemente E verwerthet werden.In order to avoid the formation of sparks, there is a shunt between K 1 and K 11 through the resistance roller W. The electrical energy of this shunt can also be used instead of the elements E for microphonic transmission.

Die Kurbelumschalter bewirken durch Drehung einer metallenen Halbscheibe das Aus- und Einschalten der elektrischen Mechanik oder einzelner Octaven, selbst einzelner Töne.The crank switches cause the off and on by turning a metal half disk Switching on the electrical mechanics or individual octaves, even individual tones.

Da das Telephon (mitsammt der Unterbrechungsvorrichtung) in einem Nebenraum aufgestellt werden kann, so ist das Auftreten lästiger Nebengeräusche ausgeschlossen.Since the telephone (together with the interruption device) is in an adjoining room can be set up, the occurrence of annoying background noises is excluded.

Die durch Patent Nr. 74722 geschützte Vorrichtung dürfte hinsichtlich ihrer Wirkung der vorstehend ausgeführten Mechanik am nächsten kommen, jedoch tritt dort die elektrische Wirkung erst ein, nachdem die magnetischen Saiten auf mechanischem Wege zum Schwingen gebracht sind und dadurch einen Inductionsstrom erregen. Sodann erfordert jene Einrichtung für jede Saite einen besonderen Magneten nebst Inductionsspulen.The device protected by patent no. 74722 is believed to be effective in terms of its effect The mechanics described above come as close as possible, but this is where the electrical effect occurs only on after the magnetic strings are made to vibrate mechanically and thus an induction current irritate. Then that device requires a special magnet and induction coils for each string.

Claims (1)

Patent-Anspruch:Patent claim: Eine elektromagnetische Mechanik der durch Patent Nr. 51668 geschützten Art mit einem auf dem Resonanzboden befestigten Mikrophon, dadurch gekennzeichnet, dafs die Schwingungen der Saiten von dem Mikrophon zunächst mittelst eines Nebenstromkreises auf ein Telephon übertragen werden, dessen Platte eine den Eigenschwingungen der Saiten svnchrone Unterbrechung des tonerzeugenden Stromes bewirkt.An electromagnetic mechanism of the type protected by patent no. 51668 with a Microphone attached to the soundboard, characterized in that the vibrations the strings from the microphone to a telephone first by means of a secondary circuit whose plate is a synchronous interruption of the natural vibrations of the strings of the sound-producing electricity. Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.
DENDAT102997D Active DE102997C (en)

Publications (1)

Publication Number Publication Date
DE102997C true DE102997C (en)

Family

ID=373533

Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
DE (1) DE102997C (en)

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