DE406467C - Device for sound transmission on speaking machines - Google Patents

Device for sound transmission on speaking machines

Info

Publication number
DE406467C
DE406467C DEF53592D DEF0053592D DE406467C DE 406467 C DE406467 C DE 406467C DE F53592 D DEF53592 D DE F53592D DE F0053592 D DEF0053592 D DE F0053592D DE 406467 C DE406467 C DE 406467C
Authority
DE
Germany
Prior art keywords
sound
sound transmission
machines
speaking machines
speaking
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.)
Expired
Application number
DEF53592D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Publication date
Priority to DEF53592D priority Critical patent/DE406467C/en
Application granted granted Critical
Publication of DE406467C publication Critical patent/DE406467C/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10KSOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K13/00Cones, diaphragms, or the like, for emitting or receiving sound in general
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00Diaphragms for electromechanical transducers; Cones

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Description

Einrichtung zur Schallübertragung an Sprechmaschinen. Gegenstand der Erfindung ist eine Einrichtung zur Schallübertragung an Sprechmaschinen. Bei den meisten bekannten Sprechmaschinen ist die Schalldose mit einem Tonarm verbunden, der seinerseits die Schallschwingungen an eine im Gehäuse fest gelagerte Schalleitung und einen SchaUtrichter weitergibt. Die Neuerung gemäß der Erfindung beruht darin, daß zur vollkommenen Ausnutzung der Schwingungen der Schal#,-membran die Schalldose auf dem unteren verjüngten Ende eines Resonanzbrettes gelagert ist, an welchem zu beiden Seiten, nach oben sich trapezförmig erweiternde Seitenwände befestigt sind,' so daß trichterförmige SchaR-räume gebildet werden., die nach oben und unten offen sind.Device for sound transmission to speaking machines. Subject of The invention is a device for transmitting sound to speaking machines. Both most known talking machines the sound box is connected to a tonearm, which in turn transmits the sound vibrations to a sound line that is fixedly mounted in the housing and passes on a judge. The innovation according to the invention is based on that in order to fully utilize the vibrations of the shell, membrane, the sound box is mounted on the lower tapered end of a resonance board at which to on both sides, side walls widening trapezoidally upwards are attached, ' so that funnel-shaped spaces are formed, which are open at the top and bottom are.

Dadurch wird eine unmittelbare naturgetreue und verstärkte übertragung der Schallwände unter Vermeidung der bekannten bei langen Schalleitungen auftretenden Hohltönen erreicht.This results in an immediate, lifelike and amplified transmission the baffles while avoiding the known occurring with long sound lines Hollow tones achieved.

In der Zeichnung ist der Erfindungsgegenstand in beispielsweiser Ausführungsforrn dargestellt, und zwar zeigt Abb. i die neue Vorrichtung im senkrechten Schnitt, Abb. 2 und Abb. 3 im Grundriß. In Abb. 2 ist die die Schalldose tragende Resonanzwand in der für Grammophonschrift, in Abb. 3 für Pat#schrift geeignete Lage dargestellt. Wie aus Abb. i hervorgeht, ist die vom Nadelträger i in Schwingung versetzte Membran 2 unmittelbar, etwa durch Stege 3, auf einer Resonanzwand 4 schwingungsfähig gelagert. Beidseits der Resonanzwand 4 sind nach oben trapezförmig sich erweiternde Wände 5, 51 und 6, 6' angeordnet, so daß zwei nach oben und unten offene schalltrichterartige Räume gebildet werden. Zweckmäßiger wird dabei die Resonanzwand höher als die Stirnwände 5, 5' der Schalltrichterräume ausgebildet. Auch kann die Resonanzwand 4 oberhalb der Befestigungsstelle der Membran 2 mit einer öffnung versehen sein. Wie aus Abb. 2 und 3 hervorgeht, ist die Schalltrichterwand 4 zwischen Führungsleisten 13 oder 14 der Wände 5, 5' oder 6, 61 zur Einstellung auf Grammophon- oder Pat#schriften. umsetzbar. Die schwingbare Lagerung der Schalldose und Resonanzwand 4 erfolgt durch einen um Querachse drehbar gelagerten Arm 12.In the drawing, the subject of the invention is shown in an exemplary embodiment, namely Fig. 1 shows the new device in vertical section, Fig. 2 and Fig. 3 in plan. In Fig. 2 the resonance wall supporting the sound box is shown in the position suitable for gramophone writing and in Fig. 3 for pat # writing. As can be seen from Fig. I, the diaphragm 2, which is set into oscillation by the needle carrier i, is mounted directly on a resonance wall 4 such that it can oscillate, for example by means of webs 3. On both sides of the resonance wall 4 are upwardly trapezoidal widening walls 5, 51 and 6, 6 ' , so that two horn-like spaces open up and down are formed. More expediently, the resonance wall is formed higher than the end walls 5, 5 'of the horn chambers. The resonance wall 4 can also be provided with an opening above the fastening point of the membrane 2. As can be seen from Fig. 2 and 3 , the horn wall 4 is between guide strips 13 or 14 of the walls 5, 5 ' or 6, 61 for setting on gramophone or Pat # writings. actionable. The vibratory mounting of the sound box and resonance wall 4 is carried out by an arm 12 mounted so that it can rotate about a transverse axis.

Claims (1)

PATENT-ANSPRUCH: Einrichtung zur Schallübertragung an Sprechmaschinen zur vollkommenen Ausnutzung der Schwingungen der Schallmembran, dadurch gekennzeichnet, daß zwecks Vermeidung von Hohltönen die Schalldose auf dem unteren verjüngten Ende eines Resonanzbrettes (4) gelagert ist, an welchem zu beiden Seiten nach oben sich trapezfö=g erweiternde Stirn-und Seiteawände (5, 51, 6, 61) befestigt sind, so daß trichterförmige Schallräume gebildet werden, die nach oben und unten offen sind. PATENT CLAIM: Device for sound transmission to speaking machines for the full utilization of the vibrations of the sound membrane, characterized in that, in order to avoid hollow tones, the sound box is mounted on the lower tapered end of a resonance board (4), on which both sides trapezoid = g widening front and side walls (5, 51, 6, 61) are attached so that funnel-shaped sound spaces are formed which are open at the top and bottom.
DEF53592D Device for sound transmission on speaking machines Expired DE406467C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEF53592D DE406467C (en) Device for sound transmission on speaking machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF53592D DE406467C (en) Device for sound transmission on speaking machines

Publications (1)

Publication Number Publication Date
DE406467C true DE406467C (en) 1924-11-25

Family

ID=7106452

Family Applications (1)

Application Number Title Priority Date Filing Date
DEF53592D Expired DE406467C (en) Device for sound transmission on speaking machines

Country Status (1)

Country Link
DE (1) DE406467C (en)

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