DE229764C - - Google Patents
Info
- Publication number
- DE229764C DE229764C DENDAT229764D DE229764DA DE229764C DE 229764 C DE229764 C DE 229764C DE NDAT229764 D DENDAT229764 D DE NDAT229764D DE 229764D A DE229764D A DE 229764DA DE 229764 C DE229764 C DE 229764C
- Authority
- DE
- Germany
- Prior art keywords
- bells
- housing
- attached
- shell
- telephone
- 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
Links
- 230000002787 reinforcement Effects 0.000 claims 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K1/00—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs
- G10K1/06—Devices in which sound is produced by striking a resonating body, e.g. bells, chimes or gongs the resonating devices having the shape of a bell, plate, rod, or tube
- G10K1/08—Details or accessories of general applicability
- G10K1/26—Mountings; Casings
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Telephone Set Structure (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Gegenstand der Erfindung ist eine Schallverstärkungsvorrichtung für die auf der Außenseite von Fernsprechgehäusen angebrachten Alarmglocken. Die Erfindung besteht darin, daß die Alarmglocke oder -glocken in einer an den Enden trichterförmig ausgebildeten Schale liegen, die unmittelbar am Gehäuse des Fernsprechers befestigt ist. Infolge dieser Befestigungsart der Schallschale dient das Gehäuse als Resonanzboden.The invention relates to a sound amplification device for the alarm bells attached to the outside of telephone housings. The invention consists in that the alarm bell or bells in a funnel-shaped shell at the ends lie, which is attached directly to the housing of the telephone. As a result of this type of attachment the housing serves as a soundboard for the sound bowl.
Auf der Zeichnung ist die Erfindung beispielsweise in einer Ausführungsform dargestellt, und zwar zeigtIn the drawing, the invention is shown, for example, in an embodiment, namely shows
Fig. ι einen Fernsprecher in schaubildlicher Ansicht mit der neuen Schall verstärkungsvorrichtung. Fig. Ι a telephone in a perspective view with the new sound amplifying device.
Fig. 2 ist ein mittlerer senkrechter Schnitt undFig. 2 is a central vertical section and
Fig. 3 ein wagerechter Schnitt nach 3-3 der Fig. 2 durch den Schallverstärker.Fig. 3 is a horizontal section according to 3-3 of Fig. 2 through the sound amplifier.
Wie aus der Zeichnung ersichtlich, liegen die Alarmglocken 6, zwischen denen der Anschlagarm 7 hin und her schwingt, in einer Schale 8. Diese Schale 8 ist am Gehäuse 5 des Fernsprechapparates befestigt und benutzt infolgedessen das Gehäuse als Resonanzboden. Die Enden 9 der zweckmäßig aus Messingblech bestehenden Schale 8 sind trichterförmig ausgebildet, wie insbesondere aus Fig. 1 und 3 ersichtlich. Der flache, gemäß Fig. 3 am Gehäuse 5 anliegende -Boden der Schallschale 8 hat lediglich Durchlaßöffnungen für die Zapfen der Glocken 6 und den Anschlagarm 7.As can be seen from the drawing, there are alarm bells 6, between which the stop arm 7 swings back and forth in a shell 8. This shell 8 is attached to the housing 5 of the telephone set and used consequently the case acts as a soundboard. The ends 9 of the expediently made of sheet brass existing shell 8 are funnel-shaped, as shown in particular in FIGS. 1 and 3 evident. The flat bottom of the sound bowl 8, which is in contact with the housing 5 according to FIG. 3 has only passage openings for the pins of the bells 6 and the stop arm 7th
Bei dem dargestellten Beispiel trägt die Schallschale 8 oberhalb der Glocken 6 noch eine dachartige Schallplatte 10, die ebenfalls trichterartig gebaut ist.In the example shown, the sound bowl 8 still carries above the bells 6 a roof-like record 10, which is also built like a funnel.
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
DE229764C true DE229764C (en) |
Family
ID=490036
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT229764D Active DE229764C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE229764C (en) |
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0
- DE DENDAT229764D patent/DE229764C/de active Active
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